A 640km ultra endurance gravel race needs a special kind of bike, so take an in depth look at Si's awesome Shimano GRX equipped Canyon Grizl ... ... <看更多>

http://si.shimano.com/pdfs/ev/EV-CS-R8000-4257.pdf. ... <看更多>

Also your picture is quite old and SRAM have since complicated it considerably with its 'Eagle' groupsets. If you refer here https://si.shimano. ... <看更多>