First MP61 ISIS Bottom Bracket


This is a very strong  high quality bottom bracket from First.
Of course the bearings are sealed to provide a maintenance free long life.
The screw caps have a standard 1.37" x 24tpi thread and are made of aluminium to keep the weight as low as possible.
The axle is made of high strength chrome molybdenum steel with its 10 cam ISIS holder.
To fit 68mm wide bottom bracket shells.
Availabe in 122mm or 128mm width.
Part of supply are two M15 steel bolts.

Weight: 287,2g + Bolts 46,1g (128mm)


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