PBR steel rear sprocket 520 pitch for HUSQVARNA WR 240, WR 250, WR 400 1977-1989

PBR offers this rear sprocket for HUSQVARNA WR 240, WR 250, WR 400 1977-1989. 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 HUSQVARNA WR 250?

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: 520
• Material: Steel
• Rear sprocket version: Reinforced
• Very high quality 18NCD5 steel alloy
• Very resistant to corrosion and abrasion

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 : RENTHAL front sprocket, 520 pitch for… · RENTHAL front sprocket 14 teeth, 520 p…
• Drive chain : ALL BALLS · RENTHAL front chain wheel for HUSQVARN…
• Chain lube : LIQUI MOLY 400 ml · SCOTTOILER

Compatibility

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

Fits:
HUSQVARNA WR 240 1988
HUSQVARNA WR 240 1987
HUSQVARNA WR 240 1986
HUSQVARNA WR 240 1985
HUSQVARNA WR 240 1984
HUSQVARNA WR 240 1983
HUSQVARNA WR 240 1982
HUSQVARNA WR 240 1981
HUSQVARNA WR 240 1980
HUSQVARNA WR 250 1988
HUSQVARNA WR 250 1987
HUSQVARNA WR 250 1986
HUSQVARNA WR 250 1985
HUSQVARNA WR 250 1984
HUSQVARNA WR 250 1983
HUSQVARNA WR 250 1982
HUSQVARNA WR 250 1981
HUSQVARNA WR 250 1980
HUSQVARNA WR 250 1979
HUSQVARNA WR 250 1978
HUSQVARNA WR 250 1977
HUSQVARNA WR 400 1989
HUSQVARNA WR 400 1988
HUSQVARNA WR 400 1987
HUSQVARNA WR 400 1986
HUSQVARNA WR 400 1985
HUSQVARNA WR 400 1984
HUSQVARNA WR 400 1983
HUSQVARNA WR 400 1982
HUSQVARNA WR 400 1981
HUSQVARNA WR 400 1980
HUSQVARNA WR 400 1979