Reference: PI.6237.A
Piston Ø58mm mono segment PROX for moto150cc KTM SX, XC-W 150cc...
Complete replacement single-segment piston, top-of-the-range model for 150cc 2t engine in 58mm diameter.
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Here is the best way to reliably upgrade your Yamaha YZ 125 - 2005/2018 from 32.6hp to 37.6hp!
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 graphite piston forged mono-segment steel.
It comes with screws and gaskets as well as the instructions! Complete as in the photo.
As an option we offer you a stage 1 preparation, this preparation is a modification of the channels and the exhaust port by increasing the diagrams and improving the duct, it increases the performance of the cylinder. An improvement to the piston and the bottom of the skirt is also included in this modification. Allow a little extra time for this preparation!
Mounts on Yamaha YZ 125 from 2005 to 2018!
Reference: PI.6237.A
Complete replacement single-segment piston, top-of-the-range model for 150cc 2t engine in 58mm diameter.
Reference: CI.48.1
Complete kit without cylinder head for MONTESA 250 2T TRIAL like 315 COTA, R2 ... with GILARDONI 383/1 engine
Reference: CI.03.270.1D
Cylinder without piston, without cylinder head for BETA 270 2T with GILARDONI 269 A engine.
Reference: CI.03.270.2
Complete kit without cylinder head for BETA 270 2T with GILARDONI 352 C1 engine.
Reference: P400155100001
The famous athena 125cc kit from ATHENA for Gas Gas EC 125 cross motorcycles from 2013 to 2015 2T
Reference: P400485100017
The famous athena 125cc kit from ATHENA for Yamaha YZ 125 motorcycles from 2005 to 2018.
Reference: CI.03.270.1
Complete kit without cylinder head for BETA 270 2T with GILARDONI 269 A engine.
Reference: CI.48.3
Complete kit without cylinder head for MONTESA 250 2T TRIAL liquid cooling ... with GILARDONI 300A engine
Reference: P400485100008
The famous athena 125cc kit from ATHENA for Yamaha YZ 125 motorcycles from 2001 to 2004.
Reference: CIL-1041-S
Very good quality kit at a very low price for your YS 125 2T from 2005 to 2018!
Reference: CI.48.2
Complete kit without cylinder head for MONTESA 250 2T TRIAL liquid cooling ... with GILARDONI 300 engine
Reference: CI.03.270.2D
Cylinder only for BETA 270 2T with GILARDONI 352 C1 engine.
Reference: CI.03.250.1D
Cylinder only for BETA 250 2T with GILARDONI 352 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: P400485100029
The famous BIG BORE 144cc from ATHENA for Yamaha YZ 125cc motorcycles from 1997 to 2004.
Reference: CI.03.250.1
Complete kit without cylinder head for BETA 250 2T with GILARDONI 352 engine.