With GRX, Shimano offers both, each with gearing options that allow you to tailor your drivetrain to suit your tastes. Unlike the road cranks, which feature a closed-off axle, GRX uses an open design, with a hole in the driveside. Quote: Why not just put bigger rings on your GRX crank? 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.. > Already have an account with us? Similarly, for the very best shifting, use a road (DURA-ACE, ULTEGRA, or 105) front derailleur if you prefer to ride with a road chainring combination like 50-34, 52-36, or 53-39, SHIMANO SERVICE CENTERS It represents a ground up look at how cyclists want to explore their world. The revenue from adverts helps to fund our site. If youve enjoyed this article, then please consider subscribing to road.cc from as little as 1.99. 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. Branding aside, GRX brakes are almost indistinguishable from their road counterparts. Shimano GRX also includes 1x11-specific BL-RX810 and BL-RX600-series left side hydraulic disc brake levers with no dropper or shift internals. By comparison, SRAMs 11-36T 11-speed cassettes (PG-1170) are a pure road product and therefore require an HG-11 freehub body. Thing is, that . The chain is rubbing FD frame when on the largest or smallest cog (it is related to the initial setup). This section summarizes what tire inserts are and the advantages and disadvantages of using them, which have been attracting attention along with the spread of tubeless tires and have recently been used in professional road racing. As ever with these things, this is the official line, and there may (or may not) be some wiggle room in reality. This means that you can often use one of these 11-speed cassettes on either a mountain bike wheel or an older road wheel. SHIMANO DEORE - 10-Speed - HYPERGLIDE - 11-36T MTB Cassette Sprocket. Both the RX810 mechanical front derailleur and the RX815 Di2 front derailleur (pictured above) have the capacity to accommodate a 17-tooth difference between chainring sizes (as found on a 48/31-tooth GRX chainset) while the RX400 10-speed front derailleur accommodates the 16-tooth difference between the RX600 chainset's 46/30-tooth chainrings. The ST-RX810-LA left lever has no shifting ability, but can be used to operate a cable-activated dropper. Originally a roadie, he likes bikes and kit of every type, including gravel bikes and mountain bikes, and he's tested a huge variety of all three over the years for BikeRadar, Cycling Plus, Cyclist.co.uk and others. The final feature that only RX810 shifters offer is dropper post compatibility for 1-equipped bikes. Save 25% + DMR Trail Gloves + DeathGrips when you subscribe to MBUK magazine, *Spring Savings* Try 6 issues of Cycling Plus for just 9.99 | Save 74% today, Id like to see even more gearing options, but GRX mechanical components offer outstanding performance across the range, GBP 937.92 RRP PDF SHIMANO GRX GRAVEL COMPONENTS explore Its equipped with an on-off switchable chain stabiliser i.e. The bead won't come up! This also means that the GRX cranks Q-Factor is +2.5mm wider on each side compared to Shimano road cranks. Compatibility [02] Cassettes | BikeGremlin ", "No doubt we'll see wider-range rear mechs and 1x chainrings appear, further broadening the scope of terrain and luggage you can tackle without upgrading an entire groupset. The RD-RX812 rear derailleur is compatible with mtb cassettes with a 42T low sprocket max. When upgrading your gravel bike, keep the following elements in mind to help decipher what parts are interchangeable with your current road components. Mar. But gravel riding isnt a new concept. 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. GRX is divided into three different levels: RX800 Shimano Ultegra level and 11-speed. No need to switch over to SRAM AXS or go 12-speed, Garbaruk's 11-50T 11-speed cassette and a number of new GRX compatible round & oval 1x chainrings will have you adventuring & bikepacking in no time. 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. Is it 9, 10, 11, 12, or even bigger? This freehub body design was quickly discontinued and should only be found on a few series of old high-end Shimano wheels/hubs. 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. While nearly all GRX components are compatible with Shimano road groups, there are a few exceptions and key features that differentiate GRX from Shimano road components. We specifically designed the brakes for the often unexpected challenges of gravel riding. Put another way, if you have a Shimano cassette with a 10T smallest sprocket, then youll require a Microspline freehub body. If youre coming from an older groupset, youll need a small adaptor in addition to the standard Shimano bleed cup that you fill with fluid at the lever. Go to our complete guide to Shimano road bike groupsets for a rundown of Shimano's groupset hierarchy. For 1x11 setups, the long-cage GRX rear derailleur is necessary if you wish to run the 11-40 or 11-42 cassette sizes. Email us with comments, corrections or queries. The hood shape is taller than normal to provide a more secure hand position on rough ground. The latest R7100 series has a 12-speed shifting system, which is currently incompatible with GRX. This increases tyre clearance and works better with the wider rear spacing found on some gravel bikes. Likewise, SRAM 10, 11, and some 12-speed (also with an 11T smallest sprocket) mountain bike cassettes fit. We can certainly see many situations when this would be useful cyclocross and the cobbled classics, for instance. 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. Create a personalized feed and bookmark your favorites. SHIMANO: Using an 11-42 tooth cassette is only possible when running a 1 x 11-speed drivetrain setup. Shimano GRX Gravel - Bikecomponents.ca 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. Park Tool offers a good guide for differences between freehubs and freewheels. Tiagra 4700 shifters are compatible with GRX RX400 derailleurs (front and rear), but apparently 105 5700 and Ultegra 6700 shifters are not. What is a through-axle? 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. 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 . DISCONTINUED PRODUCTS, SHIMANO SERVICE CENTERS | MANUALS & TECHNICAL DOCUMENTS | DISCONTINUED PRODUCTS, Privacy Policy | Cookies Preferences | Terms of Use | California Transparency in Supply Chain Act | ADA Compliance | California Consumer Private Notice. It leads to an enhanced sense of control. SRAMs XD freehub body was created to fit SRAMs own wider range mountain bike cassettes, which feature a smaller 10T sprocket; pre-existing freehub body designs couldnt handle anything smaller than an 11T one. Go with GRX's 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. shimano - Rd RX810 compatible 1x? - Bicycles Stack Exchange SHIMANO GRX SERIES LINE-UP 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. Terms and conditions of use. New Shimano GRX Gravel Groupsets - Ten Things to Know - BikeExchange You've been subscribed to our newsletter. In other words, you sometimes have to mix and match. This section summarizes why disc rotor distortion occurs and how to correct the distortion. If your bike currently has 10-speed road components, you must use 10-speed GRX components. You need a special tool for the bearing preload cap, which is widely available for less than 3 / $5. There are three types of chainset to choose from: 1x11-speed, 2x11-speed, and 2x10-speed (there is no dedicated 1x10-speed chainset). 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.". 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. Mounting adapters for bicycle disc brakes are essential when changing calipers with different standards or rotor sizes. "The change is more pronounced on the Di2 shifters. 2. Well see you out there! The GRX RD812 says it works with a minimum cassette of 40. The beauty of the Shimano GRX Groupset is the fact it is compatible with a lot of Shimano components on the MTB and Road Groupsets. And on the low end, with its 31 x 34 combination, you get a gear that early mountain bikers would envy. Once set up, shifting is excellent, with surprisingly low effort at the lever and consistent chain pick-up. The finish is definitely better suited to the rigours of gravel riding than that of the road groupsets. The GRX crank is designed to go into a 68mm wide bottom bracket shell so I presume that's what your bike has. Even with tubeless and tubeless ready tires, punctures cannot be reduced to zero. If youre looking to change a freehub body, then youll need to find out specifically what brand, model, and even generation of rear hub you have and what spare parts are available for it. But, as the Gravel Cyclist learned, you can actually run as high as a 40T cassette. The approximate 34 mm diameter across the splines means that an 11T sprocket is the smallest that can be fitted to this style of freehub body. Years before the first gravel bike was introduced, riders tinkered with cyclocross bikes or touring rigs, creating drop-handlebar bikes with wide tires. 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. 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). "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. The GRX RD810 says it works with a max cassette of 34, but if it's like the Ultegra RX it will fit a 40 just fine. HOME Types of bicycle disc brake mounts, how to recognize them, and how to choose an adapter. You can also find further guides on our sister sites off.road.cc and ebiketips. 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. The following is a summary of the differences and how to select the right one. Visit our tours page for related adventures. Good to be back . 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. This means that many older pre-11-speed Mavic freehubs are ready to accept everything from 8-12 speed HG-fitment cassettes, including 11 and 12-speed Shimano road. That means no compatibility pitfalls, as long as you stay within the recommended tooth ranges and match the number of gears. 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. These are lighter by a claimed margin of just 43g, so weight probably isnt sufficient justification. Shimano GRX gravel groupset review - Groupsets - BikeRadar Crappy wheels and a old school stem, and not particularly light. While RX400 is heavier and perhaps ever so slightly less refined, it really gives up very little to the more expensive 11-speed components. GRX offers both 1x11 and 2x11 drivetrain options. What is a torque wrench? Shimano GRX and cross compatibility - Equipment - TrainerRoad Those spacers are common parts. The idea is that you can butt your hand up against the front end of the hood to stop it sliding over the top. I would like to be able to run the 1x set up with both a 11-40 (for gravel) and 11-34 (for cross) cassette. A torque wrench is a useful tool to have if you want to properly maintain your road bike or MTB. There is no GRX 400 series chainset. The RX810 derailleur shown here is meant for 2 setups, has a total capacity of 40t, and is designed for a maximum chainring difference of 17t and cassettes that top out between 30t and 34t. Shimanos Hyperglide (HG) freehub design has been around since 1990 and remains the most common option in use today. 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. 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). Now with the GRX line Shimano has made a clear distinction between technology intended for paved and unpaved roads. My test bike, a Genesis Croix de Fer 853, which I detailed in a BR Builds article last year, was equipped with the following: Ive also spent a good deal of time riding gravel bikes fitted with both higher and lower spec GRX groupsets, including the likes of the Canyon Grail 6 and Grail CF SL 7.0, and the Enigma Escape, and Ive drawn from the experiences of the rest of the BikeRadar team in writing this review. Campagnolo has long used its own tall-spline freehub variant, something that in its current iteration dates back to its introduction of 9-speed gearing. Through-axle is becoming a major fixation method for disc brake wheels. Shimano GRX - Road Compatibility : r/bikewrench - Reddit For example, DT Swiss offers freehub bodies that cater to all current popular drivetrain demands, and (partly) as a result, a number of wheel brands choose to use DT Swiss hub internals. SHADOW Plus revolutionized the mountain bike world and now its been tuned for gravel and rough road riding in GRX. With faultless front shifting and chain security, I never found myself longing for 1 and, with the options Shimano currently offers, 2 is the better option for a versatile bike. |, a/5/d/4/a5d4c6adb4a4d681c2c247525c42e79d50bc340e_Shimano_GRX_11_speed_review_4.jpg, Excellent shifting and braking; gearing to suit most riders, 1 options arent as versatile as the competition; lever finish can mark, adjust the amount of friction in the clutch, RX600 levers, RX810 derailleurs, RX600 46/30 crank, 11-34 cassette, RX400 brakes, Chain stabiliser (clutch) rear derailleur, reach adjustment. Unless modified, these defunct freehub bodies are locked into Shimano 10-speed road cassettes only. After buying a new road bike, you will have the option to combine your original road bike with GRX components to make it a gravel bike, which will broaden the range of ways to enjoy your bike. In this article, we will show you how to find out which tires are compatible with your wheel based on its specifications. Shimano GRX accommodates almost any frame and any budget level while delivering a system-engineered drivetrain ready to tackle the most challenging gravel terrain. With the introduction of its new 12-speed road groupsets, Shimano also announced a new spline pattern specific to its new road cassettes. There arent GRX equivalents for every road component at every level, so GRX-equipped bikes will often mix different levels of components. Optimum gearing for mixed terrains and riding styles, Tighter gear steps maintain rhythm on familiar routes, Silent and uninterrupted rear shifting on rough terrain, Adjustable chain stabilizer prevents chain slapping and drops: SHIMANO SHADOW RD+, Improved grip and confidence on choppy surfaces and descents, Streamlined cockpit minimizes stress and distractions, Excellent heat dissipation: ICE TECHNOLOGIES, Never hesitate to tackle rough surfaces, Even on the roads less travelled, our new GRX tech will keep. The GRX derailleur also comes in two options with a maximum low gear of either 34t or 42t, the larger of which is compatible with MTB cassettes. When something wears out you'll have a load of options for replacement. In recent years, GS (middle cage) models are also available in the rear derailleur lineup, but in the case of gravel components, the sprocket may be chosen to be a wide ratio product such as 11-42T for MTB, in which case the maximum tooth count may exceed 40, which cannot be handled even by GS (middle cage) models for road use. Options abound. 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. GRX groupsets are only available with disc brake calipers and shift/brake levers. If you wanted a 1x system with RX600-level components, for example, you'd buy an ST-RX600-R right shifter and a BL-RX600-L left brake lever. Props to SRAM for keeping this consistent. If you like road.cc, but you dont like ads, please consider subscribing to the site to support us directly. Were impressed by what Shimano has delivered. This section summarizes the types of Shimano disc brake pads, the differences between models, and compatible brake calipers. Shimano doesnt want to pigeonhole the way you ride, or decide for you what the best solution is for your riding style. Therefore the 10 speed Tiagra and GRX 400 can use 11 speed rear derailleurs and vice versa. Grx | Shimano Bike-us Shimano GRX mechanical isnt daring, game changing or particularly surprising, its just very good at what it does. > No. The decision to offer three ranges covering both 10-speed and 11-speed ensures it is an accessible proposition too. What is the ASTM standard for bicycle wheels? Those chainring options can be paired to an 11-30, 32, or 34 tooth cassette. Dave Arthur said, "The brakes coped with demanding high-speed descents and awkward low-speed tight downhills. If you dont want to subscribe, please turn your ad blocker off. There are a handful of third-party adaptors on the market that allow you to convert flat-mount calipers to post-mount, but none of these are officially supported by Shimano, and compatibility is limited. Shimano GRX for gravel and TIAGRA for road bikes are only compatible with TIAGRA 4700 series and GRX 10. Campagnolo deserves big points for such component fitment longevity. 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. A key change is the higher braking pivot which makes braking on the hoods easier. Shimanos front shifting is pretty much the best out there, and GRX is no exception in this regard. The N3W freehub body features the same spline pattern as Campagnolos previous freehub, but is 4.4mm shorter in length. road.cc buyer's guides are maintained by the road.cc tech team. Shimanos GRX for gravel and 105 for road bikes are compatible with the 105/R7000 series and 8800 series. "Shimano has spent a lot of time studying the demands of riding a drop bar bike off-road on challenging terrain. GRX600 shifter was not compatible fully with the FD XT MTB derailleur. Thanks! Here is a summary of what types are available. What is hookless rim? Your subscription will help us to do more. 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. The only exception is the new GRX front derailleur and 2x cranks have to be paired, meaning you can't use an Ultegra crank with a GRX front derailleur or vice versa. Shimano hasnt exactly developed an entirely new groupset. See below for details on those. 1. No matter the option you select, GRX rear derailleur offerings feature Shimanos SHADOW Plus chain stabilizer that can be turned on or off depending on conditions. 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. Gravel Upgrades: Mixing and Matching Shimano GRX and Road Components. With the popularity of gravel road bikes and the spread of disc brakes, the choice of road bike wheel size has become not only the standard 700C, but also 650B. Shimano GRX cranks use a four-arm spider to match existing options. Rotors are again borrowed from the road and mountain bike ranges, with 140mm, 160mm and 180mm sizes available. This is the way that Shimano structures everything on its website. Road components that can be combined with GRX for gravel However, newer 8, 9, 10, 11 and 12-speed cassettes cannot be fitted to old and narrower 7-speed freehub bodies. 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. 11-speed mechanical HOME Shimano GRX and XT/XTR compatibility : r/bikewrench - Reddit Rear derailleur setup is straightforward following Shimanos guidelines and the limit screws are multi-tool friendly because they have hex heads. There are two types of disc brakes for road bikes, mechanical and hydraulic, but the mechanical type, which physically closes the caliper by pulling the wire, and the hydraulic type, which closes the caliper by the difference in pressure of the oil filled in the hose, have different structures and cannot be used together. I suffered no mis-shifts at all, no grinding gears, no evidence that it couldnt cope with grimy riding. Do note that Campagnolo uses its own lockring tool interface and so a Campagnolo-compatible tool will be required for swapping cassettes. A freehub is a part of the rear bicycle hub and serves two key functions. THIS WEBSITE USES COOKIES TO IMPROVE YOUR USER EXPERIENCE. GRX was designed from the ground-up to meet the rugged demands of gravel riding and racing. In practice, the range of free-stroke adjustment available is quite small, and I didnt miss it with the cheaper levers. (Your choice will be dictated by your frameset.). "The proven clutch-style rear derailleur and Shimanos patented chainring tooth design ensured the chain stayed in place over the roughest tracks. If in doubt, consult your local bike store (or ideally the source of the wheel in question). *When using GRX brake parts, only DURA-ACE hydraulic compatible parts are compatible. If you have a bike from the past 20-30 years with more than eight gears in the back, its almost certain that youll have a freehub. The Ultegra-level GRX RX810 derailleur is very similar to Ultegra RX, whichcame before it, with only slightly tweaked specs. The XT crank is designed to go into a 73mm wide bottom bracket shell. It was a long time coming but Shimano now has a well-considered range of options that should keep most gravel and adventure riders happy. The GRX is available in the following three lineups. 1. 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. 10-speed mechanical. Shimano OT-RS900 GRX, Dura-Ace Shift Cable Housing for Rear Derailleur (Y0BM98011) Out of Stock View. Need to know what freehub body your wheel has but dont want to remove the cassette to find out? Shimano offers dedicated GRX STI (combined shift and brake) levers, mechanical and electronic, which use what the brand calls a "gravel-specific ergonomic" lever design. 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. I didnt feel compelled to fiddle with this (and switching it off has no discernible effect on shifting), but you can actually adjust the amount of friction in the clutch if you want to, via a bolt underneath the outer cover. > > It is the lowest gear currently on offer for premium road drivetrains (aside from Shimanos own GRX 2x10 30-36 offering), perfect for climbing loose, dirt and gravel surfaces. The 1 RX600 option gets a 40t chainring, while the 1 RX810 crank gives you the choice of 40t or 42t rings. The downside being a lack of availability and according to official sources, little or no cross compatibility with existing road Shimano groupsets. Personally I wouldn't bother. Even so, Shimano calls GRX the worlds first dedicated gravel component group". 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. If you use the Di2 system and fit satellite shifters, you'll be able to change gear with your hands on the tops too. The RX810s have ceramic pistons, which are theoretically superior to the RX400s resin, but will you ever notice the difference? A guide to freehub body and cassette compatibility - CyclingTips Here's some more information on how road.cc makes money. The RX600 crankset uses a now-fashionable asymmetric four-arm design and is made from aluminium alloy. *When using GRX brake parts, only ULTEGRA hydraulic compatible parts are compatible. Derailleur-shifters compatibility Shimano GRX
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