Promax SC-1 Square Taper Chromo JIS Bottom Bracket 113mm Black HTZ i30 } Tested and certified for

} Tested and certified for E-Bike use according to German EFBE EPAC MTB-GR Tri-Test which is one of the toughest test procedures in the world

1 closure on flap lid

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Promax SC-1 Square Taper Chromo JIS Bottom Bracket 113mm Black HTZ i30 } Tested and certified forPromax SC 1 Square Taper Chromo JIS Bottom Bracket 113mm 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 I.