KOOTU BERSERKER Lightweight Carbon Gravel Bike Shimano GRX-400 – KOOTUBIKE
GRX 400 (10 Speed) x2. Looking to upgrade to GRX 400. Has anyone got experience of what the optimum cassette size to use in the rear? Looking to get a low bail
KOOTU BERSERKER Lightweight Carbon Gravel Bike Shimano GRX-400 – KOOTUBIKE
Your complete guide to Shimano's GRX gravel groupset | road.cc