PBR steel rear sprocket 428 pitch for YAMAHA YZ 80 1985-1992

PBR offers this rear sprocket for YAMAHA YZ 80 1985-1992. The rear sprocket receives the engine’s power through the chain and turns the rear wheel. Its number of teeth sets the gearing: with more teeth the bike accelerates harder but has a lower top speed; with fewer teeth it is the other way round.

Why fit a new rear sprocket?

The benefits:

• New teeth that hold the chain properly and make it last.
• The number of teeth is chosen to suit the terrain: more teeth for slow, tight sections, fewer for fast tracks.
• Aluminium or steel: aluminium is lighter, steel lasts much longer; “mud-release” models have cut-outs that clear the dirt.

When should you replace the rear sprocket on your YAMAHA YZ 80?

Pointed, hooked or uneven teeth, or a chain that lifts easily off the back of the sprocket: the chain kit needs replacing.

Specifications and fitting tips

• Color: Black
• Chain pitch: 428
• Material: Steel
• Rear sprocket version: Reinforced
• High quality steel alloy 18NCD5
• High wear resistance

Choose the number of teeth from the list: fewer teeth on the front sprocket (or more on the rear) gives more acceleration, the opposite gives a longer gearing.

Cross-Mania tip: Replace the rear sprocket, front sprocket and chain together, tighten the sprocket bolts in a cross pattern with threadlocker and set the chain slack to the manual.

Also needed with this part

• Front sprocket : JT SPROCKETS · AFAM
• Drive chain : ALL BALLS · RENTHAL 428
• Chain lube : LIQUI MOLY 400 ml · MUC OFF

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
YAMAHA YZ 80 1992
YAMAHA YZ 80 1991
YAMAHA YZ 80 1990
YAMAHA YZ 80 1989
YAMAHA YZ 80 1988
YAMAHA YZ 80 1987
YAMAHA YZ 80 1986
YAMAHA YZ 80 1985