Shimano Bb-un300 Bottom Bracket British Thread 68-110/127.5

Description

A good quality bottom bracket for traditional chainsets constructed with super-accurate bearings for smooth operation and improved durability.
FEATURES

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

PRODUCT SPECIFICATIONS

MODEL NO
BB-UN300

SERIES
TOURNEY A070 Series

Remarks
* w/ Crank arm fixing screws spec. only ** w/ Crank arm fixing screws spec. is available

Structure_Standard
✔

Axle length/shell width (mm)_107_68 (BC1.37)
✔

Axle length/shell width (mm)_LL113_73 (BC1.37)
✔

Axle length/shell width (mm)_D-H_68 (BC1.37)
X *

Axle length/shell width (mm)_117.5_68 (BC1.37)
X **

Axle length/shell width (mm)_XL118_68 (BC1.37)
X **

Axle length/shell width (mm)_XL118_73 mm
✔

Axle length/shell width (mm)_D-NL 122_68 (BC1.37)
X **

Axle length/shell width (mm)_D-NL 122_73 (BC1.37)
X *

Axle length/shell width (mm)_D-EL 127_68 (BC1.37)
X *

Axle length/shell width (mm)_LL123_68 (BC1.37)
✔

Axle length/shell width (mm)_LL123_73 (BC1.37)
✔

Axle length/shell width (mm)_LL113_68 (BC1.37)
X **

Axle length/shell width (mm)_MM110_68 (BC1.37)
X **

Spindle_Square type
✔