Shimano BB-UN300 Bottom Bracket 73 x 122.5mm - Wheat Ridge Cyclery | Colorado's Largest Bike Shop
BB-UN300 drive side won't thread in (counter-clockwise to tighten)! Driving me nutz. The non-drive side threads just fine (clockwise to tighten). What's happening here? : r/bikewrench
Trying to install a BB-UN300 to an beginning of 90s Peugeot Europe Express Reynolds steel frame. The driveside of the BB goes in easily although not completeley (why?) but the non-driveside thread
Square Type Bottom Bracket | SHIMANO BIKE-EU
Amazon.com : SHIMANO BB-UN300 Bottom Bracket - English, 68 x 110mm Spindle, Square Taper JIS : Sports & Outdoors