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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
Cold forged
Tapered lower leg
It is light and strong
including chainrings and cranks with threaded holes
Adjustment by a single screw with counter nut
Rennen Threaded 4 Bolt 104mm BCD Size:42 Cold forgedRennen Sprockets are precision machined from aircraft quality 7075 T6 Aluminum ( 83% stronger than 6061) and polished to a beautiful luster or available in Stealth Black, offering the highest performance at the right price. Rennen Chainrings are 3 16" thick and are made to take the abuse of the BMX Track or a east coast muddy rocky SS ride. Only Rennen Sprockets offer a single speed specific tooth profile which have been designed to extend tooth life.
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