Shimano BB-UN300 Bottom Bracket - English, 68 x 122.5mm Spindle, Square Taper JIS, 50mm Chainline Rim Brake Pads and 20mm thru axles and

and 20mm thru axles and 5mm skewers

Manufacturer Part Number: BB19PF308330

Manufacturer Part Number: MWR-14

Use kit K35018 for 44 and 48cm frames

146148-Q0-L

Shimano BB-UN300 Bottom Bracket - English, 68 x 122.5mm Spindle, Square Taper JIS, 50mm Chainline Rim Brake Pads and 20mm thru axles andShimano BB UN300 Square Spindle Bottom Brackets Fits JIS square taper cranksets Crankarm fixing bolts sold separately Hollow spindle Product Specifics Defined Color: Black Bottom Bracket Shell I. D.: 1. 37 Spindle Length: 122. 5 Spindle Interface Type: Square Taper JIS BB Shell Width (mm): 68 BB Frame Interface: English Today's Stock Status Currently not available UPC: 192790619255 EAN: Not available Manufacturer Part Number: EBBUN300B23X CR3489