Mar. What to do when you get a flat tire with a tubeless or tubeless ready tire. Not compatible with 11-46T cassette. What is the ASTM standard for bicycle wheels? The lever has also been reshaped and is wider, and there are textured ribs on the hoods for more grip in slippery weather. This article is designed to be a resource to ease confusion over freehub selection and cassette compatibility. If youre fitting your own levers, setup and bleeding arrangements are pretty well identical to Shimanos current road groupsets. Shimano GRX is a component series designed for gravel and adventure riders, bikepackers and cyclocross racers, providing a wide spread of possible builds including 10-speed and 11-speed setups, 1x and 2x drivetrains, mechanical and electronic shifting, wide-range or close-range gears, and dropper post integration. Shimanos 1 offering lags a little behind some of the competition if you keep things strictly in the family and dont mix in aftermarket components or push the spec limits. In practice, the range of free-stroke adjustment available is quite small, and I didnt miss it with the cheaper levers. Compared to Shimanos glossy 105 road levers, the RX600s also have a more muted, grippy finish that feels a bit like the soft-touch plastic you get in modern car interiors. That means no compatibility pitfalls, as long as you stay. Through-axle is becoming a major fixation method for disc brake wheels. The chain is rubbing FD frame when on the largest or smallest cog (it is related to the initial setup). SHIMANO GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world. Is it 9, 10, 11, 12, or even bigger? Oh but wait, theres more. 16, 2021. I'm torn between which of the GRX derailleurs I need to buy. a clutch which resists forward movement of the derailleur cage, reducing the tendency for the chain to bounce around. Shimano GRX cranksets Shimano has finally, FINALLY made a dedicated 1 crank for drop bar bikes. But gravel riding isnt a new concept. Does it offer any branding? The second stipulation is that Shimanos 11-speed 11-34T road cassettes are actually rebadged mountain bike cassettes, which means they will fit on older 8-10-speed freehubs. Also, note that old 8-speed Campagnolo cassettes use a different freehub system and are not a direct fit for the existing Campagnolo freehub design. On the 1 front, Campagnolos 13-speed Ekar groupset has the edge. 111 riders will have. It uses more steel and less aluminium than the RX800-level rear derailleurs, hence a higher weight. The revenue from adverts helps to fund our site. Get access to more than 30 brands, premium video, exclusive content, events, mapping, and more. For this reason, it's easiest to decide first whether you want: 11-speed Di2 View our media pack. Even if youre not buying a whole groupset, theres considerable scope to upgrade existing setups in search of lower gears or, for example, to get features such as the clutch rear derailleur. There are three types of chainset to choose from: 1x11-speed, 2x11-speed, and 2x10-speed (there is no dedicated 1x10-speed chainset). Disc brake-equipped road bikes have been on the rise in the past few years. Tubeless is reassuring to have! Shimano doesnt want to pigeonhole the way you ride, or decide for you what the best solution is for your riding style. However, for riders not ready for a total gravel makeover, GRX components happily blend with current Shimano road components so you can upgrade your gravel bike more gradually. Also about chain compatibility with chains from manufacturers other than Shimano. The following is a summary of what a torque wrench is and the advantages and disadvantages of torque management. CS-HG50-10. You need a special tool for the bearing preload cap, which is widely available for less than 3 / $5. When something wears out you'll have a load of options for replacement. Mechanical and electronic GRX rear derailleurs are available. It has almost full Deore groupset, except crankset. However, before doing so I advise you to test how well the GRX rear derailleur works with a 11-46 cassette for example (however the only 11-speed Shimano 11-46 cassettes seem to have a very large jump from second easiest gear to easiest gear and the rest uniformly spaced -- perhaps some other manufacturer might offer a 11-46 cassette with evenly spaced ratios). If you're using a 10-speed system, you need the RD-RX400 which can cope with a maximum 36-tooth sprocket. GRX offers both 1x11 and 2x11 drivetrain options. 9. Inside, outside serrations? Shimano OT-RS900 GRX, Dura-Ace Shift Cable Housing for Rear Derailleur (Y0BM98011) Out of Stock View. For example, Shimano wheels are typically locked into the style of freehub body they were initially supplied with, and the company doesnt offer replacement freehub bodies for use with Campagnolo or newer SRAM cassettes. Mat is a Cambridge graduate who did a post-grad in magazine journalism, and he is a winner of the Cycling Media Award for Specialist Online Writer. Is that peak time for drivers or peak time for cyclists/pedestrians? Component categories and series of GRAVEL, Component categories and series of LIFESTYLE, Component categories and series of E-BIKE, Your smartphone to cycling computer on the bike, SHIMANO bicycle ride data collection/analysis service, SHIMANO AGAINST THE TAMPERING WITH E-BIKES, California Transparency in Supply Chain Act. The 2x10 spec will only offer a 46-30 chainring combo that can be paired with an 11-32, 34, or 36 tooth cassettes. This also means that the GRX cranks Q-Factor is +2.5mm wider on each side compared to Shimano road cranks. Well see you out there! COMPONENT Just a coincidence, I'm sure. With options to suit a range of budgets, GRX mechanical offers dependable performance and useful compatibility with Shimanos road drivetrains. The introduction of 11-speed road cassettes required a new freehub with the same spline pattern as Shimano HG, but an extra 1.85 mm of length to accommodate the additional sprocket (now measuring 36.85 mm). Thus, you could put on an XT or XTR 11-34 10-speed cassette to get her some lower . While theres only one RX600 right-hand lever, the left comes in two versions: one for 2 drivetrains, and a variant for 1 that skips the shifting internals. Paired with 700c x 40mm tires, it delivers a top gear similar to a road bike with 25mm tires and a 50 x 11 gear. However, newer 8, 9, 10, 11 and 12-speed cassettes cannot be fitted to old and narrower 7-speed freehub bodies. GRX was designed from the ground-up to meet the rugged demands of gravel riding and racing. "For those who want to try out disc brakes but don't want to buy a new bike, we've put together a list of the parts you'll need to buy disc brakes and the points to keep in mind when buying. The action is light for both front and rear shifts, and the right lever offers single upshifts (to harder gears) and up to three downshifts (to easier gears). Similarly, new Shimano 12-speed road cassettes will fit HG 11 freehubs. At (approx) 35 mm across the spline length, the original-width HG freehub remains current for mountain bike purposes, but is discontinued on road-specific wheels. The RX810s have ceramic pistons, which are theoretically superior to the RX400s resin, but will you ever notice the difference? I'd be interested if anybody has tried to take this on the Eurostar, and whether it's possible to get away with it as an item of At almost 6k I'm struggling to see who on earth would buy this. Sign in to manage your newsletter preferences. SHIMANO GRX, with its gravel specific ergonomics, optimized gearing options, Tel 01225 588855. Even with tubeless and tubeless ready tires, punctures cannot be reduced to zero. Both Shimano and SRAM 11-speed road cassettes require this longer 11-speed freehub body. That said, GRX is still very good equipment and the range will suit the majority of those speccing their own gravel/ adventure bikes, as well as giving bike brands plenty of options when it comes to building new models. As a subscriber you can read road.cc ad-free, from as little as 1.99. While this article covers the types of external spline fitments available on freehubs, its critical to note that each brand and model of rear hub is likely to use its own proprietary freehub. > GRX is highly compatible with road-compatible components, Points to consider when combining with components for road bikes, Combine parts with the same number of speeds. It's not got No I am not. If youre going 11-speed, you might wonder if its worth opting for the more expensive 11-speed Ultegra-equivalent RX810 levers. Heres everything you need to know about the line-up, includingwhats available, upgrades and prices, Best Cycling Website, BikeBiz Awards 2018, Your complete guide to Shimanos GRX gravel groupset July 2021, This is the way that Shimano structures everything on its website, Shimano's Hollowtech II hollow crank arm technology. If you have 11-speed components, use 11-speed GRX components for your upgrades. 10, 2023, Posted at: And on a related note, many wheel brands consider freehub bodies to be a service component that can only be purchased through an approved retailer sometimes, these things arent so easily sourced online. Email us with comments, corrections or queries. Help us to make it better. things smooth, silent and safe with you always in control. And on the low end, with its 31 x 34 combination, you get a gear that early mountain bikers would envy. The GRX crank is designed to go into a 68mm wide bottom bracket shell so I presume that's what your bike has. In this issue, we will look at the differences between 700C and 650B, and the advantages and disadvantages of each. Meanwhile, most other hub brands (depending on the age) offer the ability to change the freehub body fitment type. The idea is that this provides more secure chain retention, reduces the amount that the chain slaps on the chainstays, ensures a quieter ride, and results in an uninterrupted shifting performance. Even so, Shimano calls GRX the worlds first dedicated gravel component group". A key change is the higher braking pivot which makes braking on the hoods easier. TPI, Compound, Tread? Consider the 1x11 GRX option with either Shimanos 11-40 or 11-42 cassette and a 40 or 42-tooth equipped crankset, shifted by a RD-RX812 or Di2 RD-RX817 wide ratio rear derailleur. With two different derailleur cage lengths, Shimano GRX ensures stable shifting and chain retention across a wide range of gearing options. Choose between 10-speed and 11-speed, 1x11 or 2x11, and mechanical or electronic shifting. For 2x11 our chainring options will be 48-31 or 46-30. MANUALS & TECHNICAL DOCUMENTS INFORMATION Shimano GRX accommodates almost any frame and any budget level while delivering a system-engineered drivetrain ready to tackle the most challenging gravel terrain. This appears to be a coating, and I did manage to inflict some damage on it during testing, but nothing too dramatic. Its based on Shimanos familiar Hollowtech II bottom bracket standard, which is available in both threaded and press-fit (BB86) options. What causes it and how to correct the distortion. Welcome to the latest edition of road.ccs buyer's guide to Shimano's GRX range of components for gravel bikes. TIAGRA is easy to choose as a 10-speed grade, one step down from the current higher grade of 11-speed, but you need to be careful when choosing components for compatibility. The 211-speed RX600 crank is 46/30 only if you want the bigger 48/31 option, youll need the more expensive RX810 2 crank. Because the electronic gubbins takes up less space compared to the mechanical components, Shimano has had more freedom to produce a hood shape that feels fantastic in the hand. Gravel riding is exploding throughout the cycling community, delivering a sense of exploration and freedom as we venture down unknown roads and seek out new adventures. 6. RX400 Shimano Tiagra level and 10-speed. What is hookless rim? As long as you maintain your current drivetrain speeds (10-speed versus 11-speed), the following GRX components are fully compatible and interchangeable with your existing parts: Shift levers, chains, brake calipers, bottom brackets, cables and housing, and Di2 batteries and accessories. With a quieter drivetrain, SHADOW Plus helps you engage with your surroundings and enjoy time outside. Mounting adapters for bicycle disc brakes are essential when changing calipers with different standards or rotor sizes. When trying to change tire thickness on a road bike or other sport bicycle, it is important to know what tire size the wheel will allow. The larger 11-speed cassettes, such as the 11-34 I have here, will fit on a 10-speed freehub (or an 11 with an extra spacer), a bonus if youre upgrading an older bike. In regards to the latest generation of calipers shipping with 12-speed groupsets (i.e. These newer 11 and 12-speed mountain bike cassettes fit the older and narrower HG freehub body by cantilevering the biggest cogs over the spokes. When mixing GRX and road components, it is necessary to combine parts with the same number of speeds (gears) as a prerequisite. > These customized drivetrains often relied on specialty parts, which caused problems with reliability and made it hard to find replacement parts quickly. Compatible with the current TIAGRA and above componentry for road bikes. In addition, Shimanos components for road use do not have hydraulic rim brakes, so rim brakes cannot be used either. Riders choosing an XT, SLX or Deore-level 11-40/42 cassette need to use the longer cage Di2 RD-RX817 (pictured above) or mechanical RD-RX812, both of which come with a pull ratio similar to Shimanos road derailleurs. SHIMANO SERVICE CENTERS 11-speed mechanical Shimano Microspline freehub bodies are only compatible with Shimano 11 and 12-speed mountain bike cassettes that feature a 10T smallest sprocket. The following is a summary of the differences and how to select the right one. Aesthetically, theres something slightly mountain bike-esque about GRX. Now over 50, he's riding road and gravel bikes most days for fun and fitness rather than training for competitions. What is a Through Axle? The third fun fact is that Shimano HG freehubs on older Mavic hubs are approximately 36.75 mm in length, and therefore previously required the use of a 1.75mm spacer for 10-speed or older cassettes. Fast-forward several years and the gravel landscape has evolved rapidly with new gravel-specific frames, wheels, tires, and more hitting the scene. Specifically, the drivetrain is basically officially compatible with the last two generations of components with the same number of steps. If you're using a Shimano Ultegra or 105-level 11-30/34-tooth 11-speed cassette, you need to use the short cage Di2 RD-RX815 rear derailleur or a mechanical RD-RX810 rear derailleur (pictured above). Compared to regular road front derailleurs, the GRX front derailleurs have an additional 2.5mm outboard clearance to provide space for wider tyres, up to 42mm. The lockring tool for N3W cassettes is the same as regular Campagnolo cassettes, though the lockring itself is unique to the adapter kit. Types of center lock locking rings. Mix and match components to customize your bike for. We want you to be happy with what you buy, so we only include a product if we think it's one of the best of its kind. Shimano GRX cranks use a four-arm spider to match existing options. This freehub fits 7, 8 and 9-speed Shimano and SRAM cassettes, regardless of whether the cassettes are for road or mountain biking. The RD-RX812 rear derailleur is compatible with mtb cassettes with a 42T low sprocket max. Go with GRXs 800 series 2x11 RD-RX810 or Di2 RD- RX815 rear derailleurs, designed for close ratio clusters, with 48/31 chainrings and an 11-34 cassette. "Another reason the braking is improved on the ST-RX815 Di2 levers (above) is the addition of the companys Servo Wave technology from its mountain bike brakes. 1x GRX chain sizing with 42T cassette. Options for Microspline freehub bodies are steadily increasing and are currently available to suit hubs/wheels from Shimano, DT Swiss, Hope, Bontrager, Stans NoTubes, Industry Nine, and more. You can then look at the options available within each category. With the introduction of its new 12-speed road groupsets, Shimano also announced a new spline pattern specific to its new road cassettes. It offers a lowest possible gear of 38/44 or 23.6in while not sacrificing the top end thanks to cassettes that start at nine or 10t. As ever with groupsets, it should be noted that real-world pricing often bears little resemblance to RRPs. I'm currently running on a Shimano GRX groupset with the RX810 derailleurs and 48-31T cranks. Side-by-side with a Shimano 105 road lever, the overall shape and design of the RX600 is very similar, although there are subtle differences, for example in the precise sculpting of the lever blades. Thanks to its 11-speed specification, much . If youre Shimano-inclined and looking to spec a bike for adventure, gravel or gravel-adjacent activities, it offers a wealth of options to suit different budgets, all of which perform well in the real world and are easy to live with. What is the ASTM standard for bicycle wheels? The GRX RD812 says it works with a minimum cassette of 40. If you like road.cc, but you dont like ads, please consider subscribing to the site to support us directly. Shimanos GRX gravel components are derived from road bikes, so they are highly compatible with road bike parts. |, USD $1,009.92 Besides, that ultegra crankset is prone to delamination failure (look at @thanksshimano on instagram). Bead raising" is an essential task with tubeless tires. The single ring chainsets use Shimanos Dynamic Chain Engagement tooth profile tall teeth that are alternately thick and thin, specially shaped to prevent the chain bouncing off on rough terrain. The latest R7100 series has a 12-speed shifting system, which is currently incompatible with GRX. Each rear derailleur has a stabiliser on/off switch that allows you to change the chain tension and minimise bounce. SHIMANO DEORE - 10-Speed - HYPERGLIDE - 11-36T MTB Cassette Sprocket. We have compiled a list of advantages and disadvantages of hookless, as well as points to keep in mind when choosing. Two sets of tubeless-ready wheels round out the GRX range: a 700C option (pictured) and a 650B option. Meanwhile, the new 12-speed road-specific EV freehub simply adds more splines to better spread the load area of the cassette and reduce the risk of the cassette biting into the softer aluminium material. If you are currently riding a rim-brake road bike and are considering converting to gravel using GRX components, you can save money by using STI levers that are compatible with GRX for road use instead of GRX. Be careful about compatibility when choosing Shimano TIAGRA components. Create a personalized feed and bookmark your favorites. Shimanos 1 offering is slightly less impressive, with the lowest gear currently offered being a 40/42, giving you 26in. The inline hydraulic sub-brake lever (BL-RX812, pictured above) is an interesting option. With the addition of a 1.85 mm washer behind the cassette, the 11-speed freehub bodies are backward compatible with the full list of cassettes covered above in HG Mountain.. FEATURES Silent and uninterrupted rear shifting on rough terrain Adjustable chain stabilizer prevents chain slapping and drops SHIMANO SHADOW RD+ Smooth and reliable mixed surface shifting Switch stabilizer ON/OFF to match the terrain Due to the wider crank and chainline, GRX cranks must be used in conjunction with a GRX front derailleur for 2x11 and 2x10 drivetrains. When looking for items to upgrade your road, MTB, or gravel bike tires, technical terms such as TPI, compound, and pattern appear in the descriptions. Alternatively, look on the cassette (often visible from the back) for a brand and/or model. I have a tendency to mark cranks with my heels-in pedalling style, but perhaps partly because of its shape the RX600 cranks finish has proved resilient through heavy-duty muck. Below is a list of the most commonly found freehub bodies on the market today. capacity. What is a through-axle? Impressively, the Campagnolo freehub body has remained relevant to this day and is compatible with all Campagnolo cassettes ranging from 9 through to 12-speed. Here's some more information on how road.cc makes money. The mid-level Shimano gravel groupset is an 11-speed mechanical groupset that permits a choice of 1x or 2x setups. a wide range of terrains and ride the way you want! SRAM XDR is the latest version of SRAM XD, and is simply 1.85 mm wider than the original (just like HG vs HG 11). In this issue, we will introduce a method to raise the bead of a tubeless tire that will not raise, considering the cause. Park Tool offers a good guide for differences between freehubs and freewheels. You can expect to see bikes with similar specs starting at around 1,600 / 2,000 / $2,000 / AU$3,000, but bike pricing is in flux at the moment, so thats a moving target. He has won his category in Ironman UK 70.3 and finished on the podium in both marathons he has run. Freehub bodies are almost always replaceable, but not all hub/wheel brands offer all types of freehub bodies. The 211-speed setup tested here gives a low gear of 30/34, which would equate to a 24.1in bottom end with a 70038mm tyre. Initially, the pads move quicker to make contact with the rotor, then later in the stroke pad, speed is traded for increased power and control. There are a number of things to consider here. Ill get into some gearing geekery below, but I will say that for non-competitive riding that mixes up gravel and road, the combination of a 46/30 crank and 11-34 cassette works brilliantly, offering low enough gears for serious gradients while not feeling lacking at the top end. For Shimano products, you can use BR-RS303 or, although not officially compatible with Shimano products, TRPs Spyre can be used with GRX components and mechanical STI levers for road use. 1 More posts from the bikewrench community 180 You've been subscribed to our newsletter. You can't have a complete RX600 groupset because there's no such thing as an RX600 rear derailleur, for instance; if you want an 11-speed mechanical rear derailleur you need to go for RX800 level. Links below go to Freewheel, part of Shimano importer Madison and therefore the channel they're likely to appear in first. We have lined up models from major manufacturers and compared them. It isn't a reworked set of road components. For example, an XT 11-46T cassette may just fit into the long-cage GRX rear derailleur, or you could potentially use that same derailleur with a 2x system and an 11-36T (not Shimano) or 11-40T . > How to check compatible tires from wheel specs. Both are supplied with resin pads as standard, with fins for cooling. We specifically designed the brakes for the often unexpected challenges of gravel riding. Shimano GRX offers some really appealing options for gravel and adventure riding, but the options are somewhat convoluted because crank and cassette options vary depending on where you are in the range, and which options you choose. Since the Shimano 105 drivetrain is a 2 x 11-speed group, it is not compatible with an 11-42-tooth cassette, even if you use the GRX RD-RX812 rear derailleur. Equally, I wouldnt turn my nose up at the 10-speed RX400 option, which is excellent in its own right. Firstly, it performs the ratcheting duty, allowing the cassette to stay stationary while the rest of the hub can spin freely so you can coast. SRAMs Force 1 beats GRX narrowly too, with a 10-42 cassette options that gives a low gear of 38/42 (24.7in) and a high of 38/10 (103.8in). Shifting is mechanical only. Both allow the bike to coast, but a freehub provides the ratcheting mechanism as part of the rear hub, while freewheels integrate that mechanism into the rear sprockets, which are then threaded on to the rear hub. TIAGRA componentry is Shimano's top entry grade for road bikes. TIAGRA 4600 series is not compatible because of the old 10 speed. The GRX 800 series chainset is available 2x with 48/31-tooth chainrings, and 1x with either a 42-tooth or 40-tooth chainring. For 1x11 setups, the long-cage GRX rear derailleur is necessary if you wish to run the 11-40 or 11-42 cassette sizes. For a long time, picking a freehub body was as simple as deciding between Shimano or Campagnolo, but sadly, things are no longer so simple. We hope this guide is still useful in helping you understand how the GRX range works, and we apologise if the links aren't as useful as we'd like them to be. Derailleur-shifters compatibility Shimano GRX. "The change is more pronounced on the Di2 shifters. Summary of 12-speed chains for use with Shimano road bike and MTB components. We have compiled a list of 12-speed chains that can be used with Shimano road bike and MTB components. If you're in the market for a new gravel bike or want to replace your current drivetrain completely, a full GRX groupset is an ideal place to start. Shimanos GRX for gravel and ULTEGRA for road bikes are compatible with the ULTEGRA R8000 and 6800 series. We have compiled a list of points to note when choosing a wheel. Narrower SRAM XD cassettes designed for a regular XD freehub can be fitted to an XDR body with the use of a 1.85 mm spacer behind the cassette. Our guides include links to websites where you can buy the featured products. The one exception to this is Shimano, who to this day has never produced an XD freehub body for its own wheels or hubs. Quote: You can also buy STI levers and brake calipers in sets. What is the difference from Shimano? For example, e-thirteen, Sunrace, and a few other brands offer cassettes that take a unique fitment approach to work with pre-existing freehub designs. If you live in an area without sustained or steep climbs, you might love the smaller gear steps of that same 1x11 front chainring with an 11-34 cassette. The RX600 crankset uses a now-fashionable asymmetric four-arm design and is made from aluminium alloy. differences between freehubs and freewheels, Shimanos 11-speed 11-34T road cassettes, YT Szepter first-ride review: a gravity MTB brand goes gravel, First ride rundown: the Litespeed Spezia titanium road bike. Or opt for the smaller 650b wheel with a fatter tire for a smoother-rolling feel, more comfort and traction. Each has a rim with a 21.6mm internal width and 22mm depth, and the hubs are 12mm thru-axle. All are flat mount, so if youre speccing an older frame with IS mounts, youll need either mountain bike or older road calipers instead. The hood shape is taller than normal to provide a more secure hand position on rough ground. You can get mechanical and electronic (Di2) setups. Dave Arthur said, "The most successful aspect of the new groupset is the new hoods. Shimano originally sent me the 42T chainring and 11-40 cassette, but I found that just a bit too high-geared for the often 10-15% gradient hills where I ride. The GRX 600 series chainset is available 2x with 46/30-tooth chainrings, and 1x with a 40-tooth chainring. Share. No noise from the chain slapping the chainstay.". > I suffered no mis-shifts at all, no grinding gears, no evidence that it couldnt cope with grimy riding. Shimanos components for road bikes are designed for cross-ratio sprockets, so the maximum number of teeth and capacity of the rear derailleur are smaller than those of components for MTB. Dave Arthur said, "Its just a shame Shimano wasnt a little braver in offering a game-changing groupset to serve as a serious riposte to its rivals and offer the low and wide-range gearing that many people flocking to gravel bikes want.". Shimano offers a mechanical shift ST-RX810-LA left lever that, when used with a 1x11 drivetrain, can control a dropper seatpost. If in doubt, consult your local bike store (or ideally the source of the wheel in question). The latest R8100 series has a 12-speed shifting system, which is currently incompatible with GRX. The flat mount brake calipers (BR-RX810 pictured) are the same design as the current road calipers but with GRX logos so they come with features like one-way bleeding and Shimano's Ice Technologies heat-dissipating finned brake pads and rotors. You can have a GRX groupset with either a mechanical or electronic front derailleur. It represents a ground up look at how cyclists want to explore their world. Choice. When using GRX brakes, only hydraulic brake-compatible models of STI levers for road use will be compatible, since GRX has only a lineup of hydraulic disc brakes. The N3W freehub body features the same spline pattern as Campagnolos previous freehub, but is 4.4mm shorter in length. Sitting atop the hierarchy, RX810 is said to align with Ultegra, whereas RX600 and RX400 are destined for the OEM market and sit alongside 105 and Tiagra. Shifting feel is largely defined by the levers and the RX600s are much like their road counterparts, with a light snick from gear to gear thats somewhere between metallic and plasticky. Now with the GRX line Shimano has made a clear distinction between technology intended for paved and unpaved roads. (38/9 gives a healthy 115.4in). GRX provides sensible gearing for Shimano-equipped bikes so hopefully no more roadie compact (50/34-tooth) chainsets on gravel and adventure bikes. Shimano 10-speed components include the new 10-speed TIAGRA 4700 series and the old 10-speed ULTEGRA 6700 series and 105 5700 series, but the GRX 10-speed is compatible with the new 10-speed TIAGRA 4700 series. boris becker first wife, rent to own homes in jones county, ga,

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