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The YZ125 is a Yamaha two-stroke engine motorcycle. It was the company's first 125 cc motocross racer, being released in 1974.. The Yamaha YZ 125 bike quickly became popular among motocross racers for its light weight and powerful engine, and it has remained a preferred choice for both amateur and p...  show more


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YAMAHA 2-STROKE FMF FATTY GOLD EXHAUST YZ125 2005-2020
£305.03
The upgrade that lets every other part breathe properly.
Currently unavailable View product →
YAMAHA 2-STROKE FMF NICKEL EXHAUST YZ125 1999 020172
£288.75
The upgrade that lets every other part breathe properly.
Currently unavailable View product →
YAMAHA 2-STROKE YZ125 FMF POWERCORE 2 SHORTY REAR SILENCER 2002-2021
£204.75
Frees up the power the rest of your build is chasing.
YAMAHA YZ 125 / 250 2002-2004 SWING ARM BEARING KIT
£72.99
The bearings that decide how connected the rear end feels.
YAMAHA YZ 125 1983 - 2013 BIG END BEARING 22 X 29 X 16.8
£27.65
The small part that decides whether your bottom end survives or fails.
YAMAHA YZ 125 1993 - 1997 FRICTION PLATE SET X 8 PLATES
£87.99
The part behind almost every clutch slip complaint.
YAMAHA YZ 125 1993 - 1997 STEEL PLATE SET X 6 PLATES
£65.99
The part behind almost every clutch slip complaint.
YAMAHA YZ 125 1994 - 2000 FULL ENGINE OIL SEAL SET
£25.20
The unglamorous parts that keep everything else properly sealed.
YAMAHA YZ 125 1994-1997 TOP END GASKET KIT
£20.88
The seal that makes sure the rest of the job holds.
YAMAHA YZ 125 1998 - 1999 FRICTION PLATE SET X 8 PLATES
£87.99
The part behind almost every clutch slip complaint.
YAMAHA YZ 125 1998 - 2004 HOT RODS TRANSMISSION BEARING KIT
WAS £120.00 £99.00
The bearings that keep every gear change precise and quiet.
YAMAHA YZ 125 1998-2000 MAIN BEARING & SEAL KIT
£52.37
The part that decides whether your rebuild lasts one season or five.
YAMAHA YZ 125 1999-2004 FULL ENGINE GASKET KIT
£41.23
One kit, every seal, no repeat trips to the parts counter.
YAMAHA YZ 125 1999-2004 TOP END GASKET KIT
£20.88
The seal that makes sure the rest of the job holds.
YAMAHA YZ 125 2001-2004 MAIN BEARING & SEAL KIT
£54.52
The part that decides whether your rebuild lasts one season or five.
YAMAHA YZ 125 2005 - 2020 OUTPUT SHAFT KIT
£35.72
The last link in the chain between your engine and the ground.
YAMAHA YZ 125 2005-2021 TOP END GASKET KIT
£31.87
The seal that makes sure the rest of the job holds.
YAMAHA YZ 125 2005-ON MAIN BEARING & SEAL KIT K045
£54.56
The part that decides whether your rebuild lasts one season or five.
YAMAHA YZ 125 2006-ON SWING ARM BEARING KIT 28-1160 ALL BALLS
£73.09
The bearings that decide how connected the rear end feels.
YAMAHA YZ 125/250 1994-2000 LINKAGE BEARING KIT INC. BOTTOM SHOCK BEARING BY PIVOTWORKS
£87.84
Smooth rear travel starts with the bearings that make it possible.
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