Shimano BB-UN300 Square Taper Bottom Bracket
Item number: 76645
Shimano square taper bottom bracket BB-UN300 - different axle lengths, for BSA bottom bracket
The BB-UN300 square taper bottom bracket was launched by Shimano as successor of the models BB-UN26 and BB-UN55. It covers a wide range of applications, from Touring and City bikes to older Road and Mountain bikes. BB-UN300 is available with BSA thread and in different axle lengths. In this type, the bottom bracket axle and crank are connected by a square taper. The delivery does not include crank bolts.
Specifications:
- Application:
- City, Touring, Road, All Mountain, Cross Country
- Type:
- BSA
- Shell Width:
- 68 mm
- Axle Length:
- 110 mm, 113 mm, 117.5 mm, 122.5 mm
- Axle Type:
- square taper (JIS)
- E-Type Compatibility:
- no
- Chaincase Compatibility:
- no
Technical Information:
- Bearings:
- steel
- Axle Material:
- steel
- Bottom Bracket Cup Material:
- aluminium (left), aluminium / steel (right)
Compatibility:
- for all cranks with JIS square mount
Recommended for:
- FC-M311, FC-M315, FC-M351, FC-M361, FC-M371, FC-M430
- FC-M2000, FC-M3000
- FC-T3010
- FC-MT100
- FC-RS200
- FC-TY301, FC-TY501, FC-TY701
- FC-TX801
- FC-A070, FC-A073
- FC-U4000
Models:
BSA 68x110:- Threads:
- BSA
- Shell Width:
- 68 mm
- Axle Length:
- 110 mm
- Manufacturer Number:
- E-BBUN300B10X
BSA 68x113:
- Threads:
- BSA
- Shell Width:
- 68 mm
- Axle Length:
- 113 mm
- Manufacturer Number:
- E-BBUN300B13X
BSA 68x117.5:
- Threads:
- BSA
- Shell Width:
- 68 mm
- Axle Length:
- 117.5 mm
- Manufacturer Number:
- E-BBUN300B17X
BSA 68x122.5:
- Threads:
- BSA
- Shell Width:
- 68 mm
- Axle Length:
- 122.5 mm
- Manufacturer Number:
- E-BBUN300B22X
Contents:
- 1 x Shimano BB-UN300 bottom bracket
Order Together:
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- 100 day return period
- Online since 1998
