Shimano UN26 Square Taper Bottom Bracket

Shimano manufactures a large assortment of various cranksets and matching bottom brackets. Because of this, there is an optimal system for every bike and every discipline. Square-taper bottom brackets have a square tapered axle that connects the crankset to the bottom bracket.

Specifications:

Application: Road, Cross Country, City & Touring
Type: BSA, ITA
Shell Width: 68 mm, 73 mm (BSA); 70 mm (ITA)
Axle Length: 113 mm, 1

Axle Type: square tapered (JIS)
E-Type Compatibility: no
Chaincase Compatibility: no

Technical Information:

Bearings: steel
Axle Material: steel
Bottom Bracket Cup Material: resin (left), steel (right)

Model Index:

BSA 68x113:
- Threads: BSA
- Shell Width: 68 mm
- Axle Length: 113 mm
- Factory Number: E-BBUN26B13X
- Shipment: crank arm bolt not included