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5mm (road) and 91
SPINDLE FIT: fits 19mm 48-splined spindle
Ergonomically pre-shaped and fully vented knee generously contoured to accommodate all types of knee braces and guards while a molded air-intake system cools and protects
8oz SIZE: 177
Rennen Pentacle Chainring-5-Bolt nema 5mm (road) and 91The 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
