Shimano UN300 68 x 122.5 Square Taper Bottom Bracket
Shimano UN300 cartridge bearing Square Taper (JIS) bottom bracket with alloy cups. Successor to the UN26 and UN55 series, this component covers a wide range of applications from Touring and City bikes to older Road and Mountain bikes.
Suitable for traditional square mount chainsets, featuring a 68mm shell with BSA (English) 1.370″ x 24tpi thread.
Crank bolts are not included.
bottom bracket type
squared
length (in mm)
122.5 mm
condition
new









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