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The Promax C-1 Chain Tensioners at J&R Bicycles are a lightweight and affordable way to maintain a taught chain while securing your rear wheel and dropouts
Simplistic design focused on reducing weight while building a rim for strength and speed
The 9/16" spindles are made from heat-treated and oxide-coated chromoly alloy for added durability and precision ball bearings and dust shields mean you experience nice and smooth pedal action
Up Sweep: 1°
And for “no-slip” grip it uses micro knurling and replaceable threaded pins
Alienation Acme UD Carbon BMX Rim-Rear-20x1.75" Hole Count:36H The Promax C-1 Chain TensionersThe Alienation Acme UD Carbon BMX Rear Rims are built with Alienations proprietary 4D technology, offering precise tracking and greater stability with incredible durability, lively feel, and a reduced chance of failure. Available in both 28 hole and 36 hole count options, these Alienation rims eliminate spoke bending loads and stress for the most durable wheel builds. SPECIFICATIONS WEIGHT LIMIT: 220lbs COLOR: carbon HEIGHT and WIDTH: 20x1. 75"
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