Share Facebook Twitter LinkedIn Pinterest Bluesky Threads 少なくとも弱い足を鍛えている Reason 992 why foot retention is important: When you're dumb and overtighten your pedal axle when rebuilding it and it falls off mid ride, so you have to ride 3k home with one leg. byu/FormerCrow97 inFixedGearBicycle by FormerCrow97 Bicycle Bike Fixed Gear Fixed Gear Bicycle Fixed Gear Bike サイクリング 自転車 自転車サイクリング 自転車に乗る