Shimano BB-UN300 Bottom Bracket - English, 73 x 123mm Spindle, Square Taper JIS Apparel Brand_45NRTH Fits double and triple chainring

Fits double and triple chainring cranksets

it is perfect for domestic and international flights

ESSENTIAL STORAGEEasily accessible rear envelope pockets provide adequate secure storage for your race-day essentials

Tailored to the female physique

especially when you’re planning on riding a fast and familiar route

Shimano BB-UN300 Bottom Bracket - English, 73 x 123mm Spindle, Square Taper JIS Apparel Brand_45NRTH Fits double and triple chainringShimano BB UN300 Square Spindle Bottom Brackets Fits JIS square taper cranksets Crankarm fixing bolts sold separately Hollow spindle Spindle Interface Type: Square Taper JIS BB Shell Width (mm): 73 Bottom Bracket Shell I. D.: 1. 37 Spindle Length: 123 Defined Color: Black BB Frame Interface: English