Splined bottom bracket for use with Shimano Octalink chainsets. Octalink splined axle/crank arm interface.
Shimano UN26 68 X 110mm Square Taper Bottom Bracket
Shimano Bottom Bracket ES300 68 x 118mm Octalink BB
Shimano Bottom Bracket ES300 68 x 118mm Octalink
SHIMANO UN300 SQUARE TAPER BOTTOM BRACKET 68 X 110 / 113 / 115 / 118 / 122.5mm
Shimano Bottom Bracket UN300 68 x 122.5mm Square Taper BB British Thread
Shimano BB-UN26-K Bottom Bracket - 68 x 110mm - JIS Square Taper, Chain Case
