Check out 19 Shimano GRX bikes you can buy now from Cannondale, Canyon, Bianchi, Scott, Mason, 3T, Genesis, Cube and more. capacity. Its based on Shimanos familiar Hollowtech II bottom bracket standard, which is available in both threaded and press-fit (BB86) options. The road cassettes go up to an 11-34 and mountain bike cassettes are offered in 11-40,. The first step is to count your cassettes number of sprockets (gears). Shimano wide-ratio sprockets for road bikes are listed here, including compatibility by step number. Of course, electric (Di2) and mechanical components cannot be combined even at the same speed. Does it offer any branding? I suffered no mis-shifts at all, no grinding gears, no evidence that it couldnt cope with grimy riding. Just be sure that if you use a GRX crank, especially with a 48-31 chainring combination, that you use matching GRX front and rear derailleurs, as they are designed for the larger front chainring difference. Shimano GRX also includes 1x11-specific BL-RX810 and BL-RX600-series left side hydraulic disc brake levers with no dropper or shift internals. Years before the first gravel bike was introduced, riders tinkered with cyclocross bikes or touring rigs, creating drop-handlebar bikes with wide tires. Currently, Campagnolo, Fulcrum, DT Swiss, Mavic, FFWD, Hunt, and a number of others cater for the new design. Dave Arthur used the RX810-F front derailleur and said, "Front shifts [were performed] well despite that 17-tooth jump between the two rings and being asked to do so in adverse conditions and with a regularity that rolling terrain requires.". There are no dedicated GRX cassettes and chains per se, these are simply borrowed from Shimano's road and mountain bike ranges. This article covers the most common types of freehub bodies on the market today, what differentiates them, and what compatibility they offer. Mat has been road.cc technical editor for over a decade, testing bikes, fettling the latest kit, and trying out the most up-to-the-minute clothing. This section explains the types of mount adapters, how to recognize them, and the model numbers of Shimano's mount adapters. Visit our tours page for related adventures. 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. This guide will help, but be warned that incorrectly counting or misreading something will easily result in you ordering the wrong part. 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. For this reason, it's easiest to decide first whether you want: 11-speed Di2 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. Shimanos 1 offering is slightly less impressive, with the lowest gear currently offered being a 40/42, giving you 26in. 1x and 2x and even 10 speed options. The tubeless valve is an essential item for tubeless use. An XDR freehub body is required to fit 12-speed SRAM Road AXS and XPLR cassettes. This freehub fits 7, 8 and 9-speed Shimano and SRAM cassettes, regardless of whether the cassettes are for road or mountain biking. 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. This setup would also only give you a top gear of 99.3in, falling well short of the 2 drivetrains 46/11 (114in) top end. (38/9 gives a healthy 115.4in). Mounting adapters for bicycle disc brakes are essential when changing calipers with different standards or rotor sizes. Want to drop some weight, simplify your shifting, and still maintain a versatile range? Complete GRX groupsets go for more than $1,000. As with the derailleurs, theres no direct 105-equivalent, so the choice is Ultegra-level RX810 calipers or, as I have here, Tiagra-level RX400s. According to Shimano, road 11-speed shifters are compatible with GRX front derailleurs, so if youre looking to fit a GRX crank and front derailleur to your existing bike, you wont need additional parts to make it work. 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. Types of center lock locking rings. *When using GRX brake parts, only DURA-ACE hydraulic compatible parts are compatible. What is a Through Axle? It uses more steel and less aluminium than the RX800-level rear derailleurs, hence a higher weight. Gravel Your Way: GRX Drivetrain Options. 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. He has won his category in Ironman UK 70.3 and finished on the podium in both marathons he has run. It is now commonly referred to as an HG Mountain freehub body and offers a nine-spline design, with a single wider (keyed) slot that aligns the individual pieces of the cassette. 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. However, they don't allow for the smallest sprocket to be smaller than 11 teeth. "The mechanical groupset worked beautifully [and] GRX Di2 is a clean shifting groupset that proved unflappable over three days of riding. Looking for maximum range while maintaining road cassette progression? 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. The following is a summary of SRAM's proprietary XD and XDR standards, what makes them different from Shimano's, and what to look for when purchasing. Would you like to receive offers, updates and events from BikeRadar and its publisher Our Media Ltd (an Immediate Group Company)? BR-R9270, BR-R8170, BR-R7170), the previous generation. You can have a GRX groupset with either a mechanical or electronic front derailleur. 11-speed. This means that you can often use one of these 11-speed cassettes on either a mountain bike wheel or an older road wheel. Options abound. GRX front derailleurs use the same compact design weve grown used to on the road side, which includes a built-in cable tension adjustment, so you dont need to fit an inline barrel adjuster elsewhere. Got a question of your own? 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. GRX provides sensible gearing for Shimano-equipped bikes so hopefully no more roadie compact (50/34-tooth) chainsets on gravel and adventure bikes. Meanwhile, most other hub brands (depending on the age) offer the ability to change the freehub body fitment type. ULTEGRA R8050 series => compatible with GRX Di2 ULTEGRA R8000 series, 6800 series => compatible with GRX 11 In its stock format, only Campagnolo Ekar 13-speed cassettes can fit an N3W freehub. This is the way that Shimano structures everything on its website. 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. 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. All are flat mount, so if youre speccing an older frame with IS mounts, youll need either mountain bike or older road calipers instead. You need a special tool for the bearing preload cap, which is widely available for less than 3 / $5. 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. In addition to the standard levers, GRX also offers the option to fit cyclocross-style inline hydraulic levers that allow braking from the bar tops. Do note that Campagnolo uses its own lockring tool interface and so a Campagnolo-compatible tool will be required for swapping cassettes. A torque wrench is a useful tool to have if you want to properly maintain your road bike or MTB. 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. If you have 11-speed components, use 11-speed GRX components for your upgrades. things smooth, silent and safe with you always in control. Similarly, selecting a freehub body for a particular wheel or rear hub can require a high level of technical knowledge. Are all Shimano 10 speed cassettes compatible with each other? There are a number of things to consider here. The top part of the hood curves back, letting you hook your hand into the hood for a more secure grip. Shimanos GRX gravel components are derived from road bikes, so they are highly compatible with road bike parts. This is also why most Shimano 10-speed road cassettes are provided with a thin 1 mm spacer that must be used with regular freehub bodies (spacer goes behind the cassette, always). They also have a shifting feel thats slightly crisper and more metallic than the RX600s, but the difference isnt huge. Choose from the standard 700c wheel for speed and stability. And lastly, you may consider avoiding the need for a new freehub or cassette by mixing and matching drivetrain components. If you're using a 10-speed system, you need the RD-RX400 which can cope with a maximum 36-tooth sprocket. Through-axle is becoming a major fixation method for disc brake wheels. Types and How to Choose. This also means that the GRX cranks Q-Factor is +2.5mm wider on each side compared to Shimano road cranks. And as a reminder, there are a number of wheel companies that employ DT Swiss rear hub internals that could be changed to an N3W freehub. a wide range of terrains and ride the way you want! The shifting and braking are both as good as weve come to expect from Shimano and I cannot fault the ergonomics the tall hoods feel very secure in your hands and the lever shaping is just right. I had a mate who constantly half wheeled me, I would speed up and the bastard would keep doing it until I was chewing the handlebars, then he'd Editorial, general: info [at] road.cc 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. The ST-RX810-LA left lever has no shifting ability, but can be used to operate a cable-activated dropper. If in doubt, consult your local bike store (or ideally the source of the wheel in question). Tubeless tires have seen a dramatic increase in the number of users over the past few years. That means no compatibility pitfalls, as long as you stay within the recommended tooth ranges and match the number of gears. Your hands stay put on the hoods, and your fingers are able to brake and shift even when cold, wet and muddy. What is a through-axle? Bottom brackets are shared with the road range, and the crank splits into two parts with the axle fixed to the driveside. ", "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. THIS WEBSITE USES COOKIES TO IMPROVE YOUR USER EXPERIENCE. This is the identical size spacer that is used for spacing down Shimano HG 11 freehubs even the splines match. Thanks! These are lighter by a claimed margin of just 43g, so weight probably isnt sufficient justification. Cassette and chain options come from current road (Ultegra, 105, Tiagra) and mountain bike (XT, SLX, Deore) groupsets. Not surprising given GRX's intended use, you get hydraulic disc brakes across the board. Is that peak time for drivers or peak time for cyclists/pedestrians? "Overall, the experience is one of trust," said Mike Stead, talking about using GRX 600 in particular, "It shifts with typical Shimano 105-or-better accuracy, and the chain won't fall off unless you do something spectacular. The reason you have seen those articles/videos is that a 40T large cog is indeed possible with GRX; the Shimano RD-RX812 GRX rear derailleur can handle an 11-40 or 11-42 cassette. What about when the weather turns autumnal and you contract a case of cyclocross fever? As of mid-2018, SRAM has introduced NX Eagle groupset, that includes 12 speed cassettes compatible with Shimano (and SRAM) standard freehubs (for 8, 9, or 10 speed cassettes). 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).

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