Material: 10B21. Application: 68mm bicycle bottom bracket. 1 Bicycle bearing mid -. Fit square hole chainring. Sealed bearing, no abnormal noise.
Bottom Bracket Bike Bottom Bracket Road Square High Parts 10B21 Material F2I2
Bottom Bracket Bike Bottom Bracket Road Square High Parts 10B21 Material9521
Bottom Bracket Bike Bottom Bracket Road Square High Parts 10B21 Material7996
Bottom Bracket Bike Bottom Bracket Road Square High Parts 10B21 Material9582
Bottom Bracket Bike Bottom Bracket Road Square High Parts 10B21 Material1791
DONGLING Bottom Bracket Bike Bottom Bracket For Square Hole Crank With Waterproof Screws MTB Road Folding Bicycle Shaft Square Taper Bottom Bracket(68x122.5mm)
