170 mm
3-Piece Crank Set
with SEALED BEARINGS
for 51,4 mm USA BB - pressed - no thread
OPC / BMX type
It occures in BMX , Classic Cruisers and some custom frames in our offer.
The set includes :
Bottom bracket axis 149 mm 8T
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sealed machinery bearings
for 51.4 mm shells - 68,5 mm wide
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Steel arms
170 mm
( between the centers of the BB and pedal axis)
adaptive for chainring with 24mm hole
and pedals with thread 9/16"
HOW TO CHECK WHAT PEDALE TYPE / THREAD SIZE DO I HAVE ?
1/2 - thread on the pedal - measured the top of turns about 12.5 mm - a hole in the crank about 11.5 mm
9/16 - thread on the pedal - measured the top of turns about 14 mm - a hole in the crank about 13 mm