CRF450L '19 - '25 Precision tolerances – The tightest in the industry. Ultra-lightweight, for reduced unsprung mass. Straight rate springs will give better control in the rough stuff. Sold in pairs. Stock Spring Rate: 0.51kg/mm Choose Spring Rate .44 kg/mm.46 kg/mm.48 kg/mm.50 kg/mm.52 kg/mm.54 kg/mm Ships in 3-5 business days $149.95