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SHIMANO quality/performance cartridge bearing square bottom bracket. Better chainline stability with chain line stabilizer.
BB-UN300
SHIMANO - Square Type Bottom Bracket - MTB - Standard Structure
Square Type Bottom Bracket
SHIMANO quality/performance cartridge bearing square bottom bracket
Better chainline stability with chain line stabilizer
3 structures available
Standard, E-type, chain case options
Adapter material: Aluminum
Features:
Fits JIS square-taper cranksets
Crankarm fixing bolts sold separately
Hollow spindle
Specifications:
Frame Interface: BSA/English Threaded
Spindle Interface: Square Taper JIS
Bottom Bracket Shell ID: 1.37
Shell Width: 68mm
Spindle Lengths: 107mm, 110mm, 113mm, 115mm, 117.5mm, 118mm, 122.5mm
Color: Silver
Weight: TBD
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