NLA - Sunstar MXR Gold 428 Chain - Non O-Ring - 134 Links xr70 Two valves in the intake

Two valves in the intake valve and two in the exhaust valve increase the valve curtain area by increasing the number of valves to increase the intake and exhaust efficiency

INSTALL TIP - CLICK HERE

• On-the-fly adjustable reach with 4 inches of range

Race Camshaft and sprocket

NLA - Sunstar MXR Gold 428 Chain - Non O-Ring - 134 Links xr70 Two valves in the intakeNO LONGER AVAILABLE 134 Link Will require you to cut to length unless you need exactly 134 links. Details: Deep gold side plates & gold inner plates Super strong & lightweight design for high performance racing mini off road & motocross machines Utilizes TST (TripleStar Treated) ultra hard pins & 100% heat treated components for high strength & durability Uses clip type connecting link 420 chain achieves tensile strength of just under 5000 lbs