NEW Shimano BB-UN300 Square Spindle Bottom Bracket, 73x113mm Square Taper variant-size-41-eu-mens Bolt-on hitch compatibility using Steel

Bolt-on hitch compatibility using Steel Hitch or Classic Hitch

7 RD Tapered

OTTOLOCK is designed for quick stops and protecting against opportunity theft

Ratchet-and-pawl clutch provides chain security and can be turned on and off with a switch

and every 45 minutes during activity

NEW Shimano BB-UN300 Square Spindle Bottom Bracket, 73x113mm Square Taper variant-size-41-eu-mens Bolt-on hitch compatibility using SteelShimano BB UN300 Square Spindle Bottom Brackets Fits JIS square taper cranksets Crankarm fixing bolts sold separately Hollow spindle Defined Color: Black Bottom Bracket Shell I. D.: 1. 37 Spindle Length: 113 Spindle Interface Type: Square Taper JIS BB Shell Width (mm): 73 BB Frame Interface: English