Reference: P400485100042
ATHENA RACING 293cc Ø72mm kit for Yamaha YZ 250 from 2003 to 2018
Complete kit cylinder piston cylinder head ... ATHENA high performance and high quality in 293cc ø72mm Big Bore for Yamaha YZ 250 LC from 2003 to 2018.
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Here is the best way to reliably upgrade your Yamaha YZ 125 - 1997 to 2004 from 37.5hp to 42hp!
The ATHENA BIG BORE with its large diameter of 58mm offers a good performance and torque gain over the entire range to your YZ 2T.
The kit consists of a very reliable ATHENA nicasil treated aluminum cylinder with corrected diagrams. A VERTEX grphité piston forged mono-segment steel.
WARNING: To assemble this kit on YZ 125 LC 1997-1998 models you need to replace the stock muffler with a year 1999-2003 version and for 1997-1999 models you need to order the stock springs 2 twists)
It comes with screws and gaskets, cylinder head, piston, unloading valves ... as well as the instructions as in the photo!
Mounts on Off-road (mx) Yamaha YZ 125 - 1997/2004
Reference: P400485100042
Complete kit cylinder piston cylinder head ... ATHENA high performance and high quality in 293cc ø72mm Big Bore for Yamaha YZ 250 LC from 2003 to 2018.
Reference: P400485100030
The famous BIG BORE 144cc from ATHENA for Yamaha YZ 125 - 2005/2018 motorcycles! Monstrous!
Reference: P400010100001
Complete kit without cylinder head for MONTESA 250 2T TRIAL liquid cooled... with GILARDONI 300A engine
Reference: PI.6237.A
Complete replacement single-segment piston, top-of-the-range model for 150cc 2t engine in 58mm diameter.
Reference: P400485100017
The famous athena 125cc kit from ATHENA for Yamaha YZ 125 motorcycles from 2005 to 2018.
Reference: P400155100001
The famous athena 125cc kit from ATHENA for Gas Gas EC 125 cross motorcycles from 2013 to 2015 2T
Reference: P400485100008
The famous athena 125cc kit from ATHENA for Yamaha YZ 125 motorcycles from 2001 to 2004.
Reference: CI.03.250.1D
Cylinder only for BETA 250 2T with GILARDONI 352 engine.
Reference: CIL-1041-S
Very good quality kit at a very low price for your YS 125 2T from 2005 to 2018!
Reference: P400250100006
The best to replace the high engine of his KX 65! A high performance and very robust 65 kit.
Reference: CI.48.3
Complete kit without cylinder head for MONTESA 250 2T TRIAL liquid cooling ... with GILARDONI 300A engine
Reference: CI.03.270.1
Complete kit without cylinder head for BETA 270 2T with GILARDONI 269 A engine.
Reference: CI.48.2
Complete kit without cylinder head for MONTESA 250 2T TRIAL liquid cooling ... with GILARDONI 300 engine
Reference: CI.03.270.1D
Cylinder without piston, without cylinder head for BETA 270 2T with GILARDONI 269 A engine.
Reference: P400485100038
A 105cc ø53mm Big Bore ATHENA kit, high performance and high quality for your Yamaha YZ 85 - 2002/2018 motocross bike
Reference: P400485100039
A 100% complete competition pack for YAMAHA YZ 85cc motocross engine! Special long stroke in 102cc Ø53mm, high compression cylinder head with increased chamber volume. In short, a real concentrate of performance!