IRC IRC-92 T20056 Heavy Duty Inner Tube Inner Tube - Heavy Duty - 18" - TR-4 - Center Metal Valve Brand_J & M X and Z-ring chains

X and Z-ring chains

Increases valve timing accuracy by eliminating chain lash and loosely fit stock chain drive

0:1 Displacement 1250 cc Style Replacement Bore Size 3

Includes an adjustable speedometer

Dynamic mode to troubleshoot poor engine synchronizing

IRC IRC-92 T20056 Heavy Duty Inner Tube Inner Tube - Heavy Duty - 18" - TR-4 - Center Metal Valve Brand_J & M X and Z-ring chainsFeatures Two to three times thicker than standard tubes, IRC heavy duty tubes are incredibly durable, abrasion resistant and feature great impact absorption Impressive joint and valve strength Natural rubber construction Specs Inner Tube Valve Stem Type Center Metal Valve (Threaded Nuts) Duty Heavy Duty Mounting Position Front Rear Material Rubber Product Name Inner Tube Type Motorcycle Units Each Tube Fits Tire Size 4. 10 18 Riding Style Street Tube