Shimano BB-UN300 Square Spindle 68mm Bottom Brackets
- Fits JIS square-taper cranksets
- Crankarm fixing bolts sold separately
- Hollow spindle
Frame Interface: BSA/English Threaded
Spindle Interface: Square Taper JIS
Bottom Bracket Shell ID: 1.37
Shell Width: 68mm
Spindle Lengths: 122.5mm
Shimano UN300 Square Taper English Bottom Bracket
Original shimano,I have been using 68 113mm for my 1*9 speed chain ring,its been more than 6 months and it's very smooth...now I ordered and got 122.5 the second one for my three speed chain ring...I am planing to change to front 3 speed...
I brought it for my Polygone Heist X2, was not sure while ordering... But this is an excellent buy and I received Original one....
suits well and performance of this BB is first call..
Though expensive, with no discounts, I received a very good and original Bottom Bracket.