Vortex Steel Sprocket - 435S-42 Yamaha Motorcycles 1998-2021 DUNLOP 1 mm Heat Range 9

1 mm Heat Range 9 Model JR9B Riding Style ATV Riding Style Street Spark Gap 0

538" Intake Duration 239° Intake Lobe Centerline 99° Intake Close 38

Model-specific mounting kits feature Memphis Shades exclusive Trigger-Lock mounting system and are sold separately

Acts as an automatic thermostat

Vortex Steel Sprocket - 435S-42 Yamaha Motorcycles 1998-2021 DUNLOP 1 mm Heat Range 9Features Steel rear sprockets are made from carbon steel and electroplated with a satin black finish that resists corrosion; teeth are hardened so sprocket will hold up to many miles, without affecting strength Steel rear sprockets are also cupped down from the tooth ring to body to reduce as much weight as possible Specs Color Finish Black Material Carbon Steel Tooth Count 42 Chain Size 520 Mounting Position Rear Model Steel Type Drive Riding Style