Table of Contents
What cassettes work with GRX?
You can run Shimano 11-42 cassettes, or 11-40 for those who want a bit tighter range . You can even run a SRAM 10-42 cassette. That is not endorsed by Shimano but it works flawlessly in our lab and outside. Combining the GRX RX-812/RX-817 rear derailleur with a SRAM 10-42 cassette?
What is the difference between GRX 600 and GRX 800?
The key difference between the GRX 800 chainsets and the GRX 600 chainsets is that GRX 800 uses Shimano’s Hollowtech II hollow crank arm technology to reduce the weight.
What is the difference between GRX 810 and 600?
The Riding Gravel Forum Seems like the 600 series is 10sp and not 11sp. Shimano GRX 800 and 600 series are both 11 speed. GRX 400 is 10spd. The difference between 800 and 600 is the 800/810 has Servo wave for increased power when braking.
What does the clutch do on GRX?
Each derailleur is now equipped with a chain tension system (clutch) to prevent the chains from being unshipped over bumpy surfaces and also to help reduce chain-slap (when the chain bounces and chips the chainstay).
Are GRX 1x and 2x cranks the same?
Only the group is different while the frame is identical. Migrating on these bikes from 1x to 2x is easy to do. The costs involved are substantial though. You will need to replace crank-set, brifters, rear derailleur, chain, bar tape.
What GRX 800?
The “gravel group” parts from Shimano are designated GRX and are available in three levels – 400, 600 and 800. 400 is a 10 speed group that is comparable to the Tiagra level of road components. 600 is parallel to 105 and 800 to Ultegra.
Are bike cassettes interchangeable?
In some cases, it is possible to run a cassette from a different brand than the rest of your drivetrain. SRAM and Shimano cassettes, on either road or mountain bike, are interchangeable with each other as the spacing is the same between the sprockets.
How do GRX gears work with Shimano cassettes?
GRX components are designed to work with existing Shimano components, so as long as you stick to the same number of gears (11 with 11, 10 with 10), you have the choice of any of Shimano’s current cassettes and chains.
What is the difference between Shimano GRX and road cranksets?
Shimano GRX cranksets feature a +2.5mm outboard chainline, which improves rear tire clearance, making room for wide gravel tires. This also means that the GRX crank’s Q-Factor is +2.5mm wider on each side compared to Shimano road cranks.
What derailleur do I need for my Shimano cassette?
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). If you’re using a 10-speed system, you need the RD-RX400 which can cope with a maximum 36-tooth sprocket.
What kind of drivetrain does the 2020 Shimano GRX 800 have?
New for the 2020 model year, the SHIMANO GRX 800 series offers 1×11 and 2×11 drivetrains – with mechanical and Di2 electronic options – that allow riders to tailor their mixed surface riding experience and Explore Beyond.