We manufacture our track cranks out of US-produced 7075 billet aluminum. The 7075 we use is put through special processes that maximize hardness and minimize internal material stresses. Both the drive and non-drive crank arms are designed to optimize the material’s grain structure; producing crank sets with maximum achievable rigidity. Each crank set is machined in-house to the same high quality standards we apply to all of our products. Our cranks are available in the same high polished silver and black finishes as our hub shells. Track crank arms are available in 165 mm and 170 mm lengths. Track chainrings are available in 46 and 48 tooth counts for 1/8” chain.