SHIMANO BOTTOM BRACKET BB-UN-300K

Shimano BB-UN300K Square Spindle 68mm Bottom Brackets

FEATURES:

• 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: 123mm
• Color: Silver
• Weight: TBD