H&R 2.5 inch ID Single Race Spring Length 18 inch Rate 500 lbs/inch 1983-yamaha-yz125-esi9365072 02" Intake Valves

02" Intake Valves

5-Layer Performance Air Filter:This intake system utilizes an oil free

560 degrees F)

Fragola -3AN Clear Covered Assembly Straight x 90in 22in

H&R 2.5 inch ID Single Race Spring Length 18 inch Rate 500 lbs/inch 1983-yamaha-yz125-esi9365072 02" Intake ValvesH&R 2. 50" I. D. Race Springs are made with extremely high tensile strength wire alloy which allows the use of a thinner wire. Manufactured using advanced materials and precision technology in Germany, H&R 2. 50" I. D. Race Springs are crafted from special lightweight (hf) 54SiCr6 spring steel. For any given spring rate, they are on average 15% lighter and have 10% more travel than competitors' springs. Main springs range from 6" to 18" in length and