Shimano BB-UN300 Bottom Bracket (Length: 68 x 107mm)
Shimano BB-UN300 Bottom Bracket (Length: 68 x 107mm)
Shimano BB-UN300 Bottom Bracket (Length: 68 x 107mm)
Shimano BB-UN300 Bottom Bracket (Length: 68 x 107mm)
Shimano BB-UN300 Bottom Bracket (Length: 68 x 107mm)
Shimano BB-UN300 Bottom Bracket (Length: 68 x 107mm)
Shimano BB-UN300 Bottom Bracket (Length: 68 x 107mm)
Shimano BB-UN300 Bottom Bracket (Length: 68 x 107mm)
Shimano BB-UN300 Bottom Bracket (Length: 68 x 107mm)

Shimano BB-UN300 Bottom Bracket (Length: 68 x 107mm)

(1,751 reviews)

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.

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.

$7.09 - $138.60

in 74 offers

Shimano BB-UN300 Bottom Bracket (Length: 68 x 107mm)

$7.09

(1,751 reviews)

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.

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.