Rennen Pentacle Chainring-5-Bolt Gear Size:36T “Soft-Flex” protective rubber badging ventilated

“Soft-Flex” protective rubber badging ventilated for increased airflow

The Redline 2017 Flight R7 frame (R6 for junior and smaller sizes) features result proven geometry that is engineered for the rigors specific to high level BMX racing

Available in Adult S/M or L/XL

5in at J&R Bicycles are constructed of premium 6065 aluminum alloy which is also referred to as T-6 Aircraft Aluminum

Rennen Pentacle Chainring-5-Bolt Gear Size:36T “Soft-Flex” protective rubber badging ventilatedThe Rennen Pentacle Chainring 5 Bolt is made from airplane grade 7075 T6 aluminum alloy which is 83 percent stronger than the standard 6061 T6 chainring. This premium alloy is also super lightweight so even the 42T size weighs less than 2. 5oz, one of the lightest out there. Rennen designed these cogs with a single speed specific tooth shape for added durability and the spline interface is 3 16" thick to protect your hubs. These 110mm BCD chainrings