Cyclus Tools Bottom Bracket Tool with Guide - Shimano Standard
- Weight : 0.91kg / 2.01lbs
- Packaging Unit: 1 Piece
- Product ID (PID): 38986
- Product safety
Weight
Source: BMX Glossary
Printed: 11/07/2026
Fitting tool from Cyclus Tools for cartridge bottom brackets with the Shimano standard spline, i.e. BB-UN 51, 71 and 72 and their relatives. The 20 spline head is set into the cup, then the spring loaded locking screw is threaded into the M8x1 thread of the axle. That way Cyclus Tools Bottom Bracket Tool with Guide - Shimano Standard sits firmly on the cup and cannot slip while loosening or tightening, even on seized bearings.
Facts: Cyclus Tools Bottom Bracket Tool with Guide - Shimano Standard
- Contains: 1 fitting tool
- Compatibility: Shimano BB-UN 51, 71 and 72, Shimano Compact, Kinex square taper aluminium, Tecora aluminium, Truvativ Power Spline
- Extras:
- spring loaded locking screw with M8x1 thread holds the tool on the cup
- 20 splines, 32 mm
- replacement spindle available separately





















































