Promax SC-1 Square Taper Chromoly JIS Bottom Bracket - 108mm

SC-1 bottom brackets are the perfect choice for those who still prefer the low weight and simplicity of square taper cranks. Each bottom bracket is hand assembled using a hollow chromoly spindle, precision sealed bearings, forged and CNC-machined alloy cups and a composite center spacer/seal.

• Hollow chromoly spindle
• CNC-machined alloy cups
• JIS square taper

Specs:

• Spindle Interface Type: Square Taper JIS
• BB Shell Width (mm): 68
• Bottom Bracket Shell I.D.: 1.37
• Spindle Length: 108
• BB/Frame Interface: English
• Defined Color: Black
• Weight: 246