Ultra drive series Specification : +20%/1500 RPM Color : Orange Material : Japan-made highest grade SWOSC with JIS G 3561 standard (usually used for high temperature valve spring) Compatible OEM part number : B013304
Ultra drive series Specification : +10%/1000 RPM Color : White Material : Japan-made highest grade SWOSC with JIS G 3561 standard (usually used for high temperature valve spring)
Ultra drive series Specification : +30%/2000 RPM Color : Gold Material : Japan-made highest grade SWOSC with JIS G 3561 standard (usually used for high temperature valve spring)
Ultra drive series Specification : +10%/1000 RPM Color : White Material : Japan-made highest grade SWOSC with JIS G 3561 standard (usually used for high temperature valve spring)
Ultra drive series Specification : +20%/1500 RPM Color : Orange Material : Japan-made highest grade SWOSC with JIS G 3561 standard (usually used for high temperature valve spring)
Ultra drive series Specification : +20%/1500 RPM Color : Orange Material : Japan-made highest grade SWOSC with JIS G 3561 standard (usually used for high temperature valve spring)
Ultra drive series Specification : +30%/2000 RPM Color : Gold Material : Japan-made highest grade SWOSC with JIS G 3561 standard (usually used for high temperature valve spring)
Ultra drive series Specification : +10%/1000 RPM Color : White Material : Japan-made highest grade SWOSC with JIS G 3561 standard (usually used for high temperature valve spring)
Evo racing series With knurled surface designed for racing Specification : - Bigger torque - Centrifugal weight - Nitriding + QPQ treatment Compatible OEM part number : 22100-K0J-N01
Ultra drive series Specification : +10%/1000 RPM Color : White Material : Japan-made highest grade SWOSC with JIS G 3561 standard (usually used for high temperature valve spring)
Ultra drive series Specification : +35%/2000 RPM Color : Gold Material : Japan-made highest grade SWOSC with JIS G 3561 standard (usually used for high temperature valve spring)
Ultra drive series Specification : +10%/1000 RPM Color : White Material : Japan-made highest grade SWOSC with JIS G 3561 standard (usually used for high temperature valve spring)
Ultra drive series Specification : +20%/1500 RPM Color : Orange Material : Japan-made highest grade SWOSC with JIS G 3561 standard (usually used for high temperature valve spring)
Material : Weight roller : PA46 DSM nylon Pulley and primary sheave : HPD high quality aluminum alloy Include : Weight roller 6 pcs 10 gr Compatible OEM part number : B65-E7620-00