420D Chain Natural, Front & Rear Sprocket Kit for Street YAMAHA YSR50 1987-1992

DID Standard 420D Chain Natural, JT Front & Rear Sprocket Kit for Street YAMAHA YSR50 1987-1992 O.E.M. Gearing 12/44

Standard 420D Chain

Color: Natural

Type: 420

Links: 100

Suitable for use up to 80cc

D.I.D chain is used by the factory race teams and is the #1 chain manufacturer in the world.

Solid rollers.

Shot-peened parts.

High cylindrical and roundness accuracy.

Exacting tolerances provide low friction.

Pre-stretched.

Average tensile strength of 3,970 lbs.

JT Steel Front Sprocket

Teeth: 12T

Using the latest generation of computer design and control metal cutting equipment for maximum durability.

Made from the finest C49 high carbon steel or 7075 T6 aluminum.

Front sprockets are made from chromoly SCM420 steel alloy.

All sprockets are heat-treated and hand-finished to meet or exceed the highest possible quality standards.

JT Steel Rear Sprocket

Teeth: 44T

Using the latest generation of computer design and control metal cutting equipment for maximum durability.

Made from the finest C49 high carbon steel or 7075 T6 aluminum.

Front sprockets are made from chromoly SCM420 steel alloy.

All sprockets are heat-treated and hand-finished to meet or exceed the highest possible quality standards.