Braless braShimano UN55 Square Taper Bottom Bracket

Color Silver
Size 68 x 107mm 68 x 110mm 68 x 113mm 68 x 115mm 68 x 118mm 68 x 122.5mm 68 x 127mm 70 x 118mm 73 x 113mm 73 x 118mm 73 x 122.5mm 73 x 107mm 73 x 110mm 70 x 107mm 70 x 110mm 70 x 113mm 70 x 115mm 70 x 122.5mm
Option English Thread Italian Thread
Qty:

Shimano UN55 Square Taper Bottom Bracket

  • 25% more durable than UN54 with alloy left hand cup
  • Traditional square JIS 2-degree taper crank-arm interface
  • Offered in either English (BC1.37 x 24tpi - RH/LH) or Italian (M36 x 24tpi - RH/RH) threads