JT SPROCKETS steel rear sprocket 428 pitch for YAMAHA DT 125, DT 125 RE, TDR 125, WR 125, WR 125 X 1988-2026

JT SPROCKETS offers this rear sprocket for YAMAHA DT 125, DT 125 RE, TDR 125, WR 125, WR 125 X 1988-2026. 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 DT 125?

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
• Type: Rear sprocket
• Ultra-durable high carbon C49 steel

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 : PBR · RFX
• Drive chain : AFAM · RENTHAL
• Chain lube : LIQUI MOLY 400 ml · SCOTTOILER

Compatibility

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

Fits:
YAMAHA DT 125 2003
YAMAHA DT 125 2002
YAMAHA DT 125 2001
YAMAHA DT 125 2000
YAMAHA DT 125 1999
YAMAHA DT 125 1998
YAMAHA DT 125 1997
YAMAHA DT 125 1996
YAMAHA DT 125 1995
YAMAHA DT 125 1994
YAMAHA DT 125 1993
YAMAHA DT 125 1992
YAMAHA DT 125 1991
YAMAHA DT 125 1990
YAMAHA DT 125 1989
YAMAHA DT 125 1988
YAMAHA DT 125 RE 2006
YAMAHA DT 125 RE 2005
YAMAHA DT 125 RE 2004
YAMAHA DT 125 RE 1998
YAMAHA DT 125 RE 1997
YAMAHA DT 125 RE 1996
YAMAHA DT 125 RE 1995
YAMAHA DT 125 RE 1994
YAMAHA DT 125 RE 1993
YAMAHA DT 125 RE 1992
YAMAHA DT 125 RE 1991
YAMAHA DT 125 RE 1990
YAMAHA DT 125 RE 1989
YAMAHA DT 125 X SM 2006
YAMAHA DT 125 X SM 2005
YAMAHA TDR 125 1992
YAMAHA TDR 125 1991
YAMAHA TDR 125 1990
YAMAHA TDR 125 1989
YAMAHA WR 125 2026
YAMAHA WR 125 2014
YAMAHA WR 125 2013
YAMAHA WR 125 2012
YAMAHA WR 125 2011
YAMAHA WR 125 2010
YAMAHA WR 125 2009
YAMAHA WR 125 X 2014
YAMAHA WR 125 X 2013
YAMAHA WR 125 X 2012
YAMAHA WR 125 X 2011
YAMAHA WR 125 X 2010
YAMAHA WR 125 X 2009