Description
The Rennen Chainring-4-Bolt at J&R Bicycles is made from airplane-grade 7075-T6 aluminum alloy which is 83-percent stronger than the standard 6061-T6. This premium alloy is also super lightweight. One of the lightest out there. Rennen designed these chainrings with a single speed-specific tooth shape for added durability. These 104mm BCD chainrings are the popular choice of the top Pro BMX racers around the world
Reviews
There are no reviews yet.