Founded in 2001 as the first manufacturer of aftermarket, performance billet camshafts for the dirt bike and ATV market. Today Hot Cams manufacturers almost 250 unique camshaft profiles in its Urbandale, Iowa facility. Stage 3: Single-cam motor. New camshaft, not reground, no core required. Excellent midrange and top-end power increase. Hot Cams consistently voted top product of the year. Detailed Specifications: Exhaust duration (degrees at 1 mm): 271.00. Exhaust lift (mm): 10.82. Exhaust lobe center (degrees): 102.50. Exhaust valve lash (mm): 0.25. Intake duration (degrees at 1 mm): 265.00. Intake lift (mm): 10.16. Intake lobe center (degrees): 112.00. Intake valve lash (mm): 0.20.