Promax SC-1 Square Taper Chromoly JIS Bottom Bracket 108mm Black Model-Plush Dynamic Light 780mm and 820mm widths

780mm and 820mm widths

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model Micro ACB MR170 description bearing (52mm) 45x45 degree size 1

Promax SC-1 Square Taper Chromoly JIS Bottom Bracket 108mm Black Model-Plush Dynamic Light 780mm and 820mm widthsPromax SC 1 Square Taper Chromoly JIS Bottom Bracket 108mm Black. 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 TECH SPECS Bottom Bracket Shell