Wossner - High Performance Pistons

As we all are aware Honda OEM pistons for our 2-stroke GP machines have double in price and then double again and some racers have had issues with the new OEM pistons especially in the RS250 Honda. We have been looking for a solution.
For some basic information on installation of pistons and rings and notes one our findings on the RS250 piston/ring failures. CLICK HERE

Wössner manufacturers German engineered high quality forged pistons for 2-stroke and 4-stroke competition engines. Piston kits which include rings, clips, and pin.  4-stroke pistons are supplied with custom DLC (Diamond-Like Carbon) coated wrist pins, providing anti-friction, high RPM motors.

WOS-8244DA Wossner Honda RS125 GP Domed top 53.94mm piston $120.00   
WOS-8245DA Wossner Honda RS125 GP Flat top 53.94mm piston $120.00        
WOS-RSA5400 Wossner Honda RS125 GP Ringset 54.00 X 0.8mm $17.31        

We have received positive results form these pistons installed in both the RS125 and RS250 Honda machines.
For install of coated piston it has been recommended to lightly red Scotch Brite the pistons skirt in a cross hatch, properly dress ring groove, measure end gap, clean and assemble. Properly warm up engine at low RPMs for 2 heat cycles and always be sure motor is completely warmed before heading out to the track and properly setup either with duct tape or a thermostat system to stay at proper operating temperature.
 

For all those racers that have been looking for
Domed Top "A" pistons for your 125 motor!

VT23105A Vertex 23105A Honda RS-GP95-97 125cc D. 53.94mm (02V) Piston w/ring (53007805400),
pin (711127) and clips ( 72071)     $194.95  

HRC Flat Top "A" Kit Pistons

HRC-NX4-0601 NX4/NX5/NXA FLAT PISTON-C 0.7 - use 13121-NJBA-003 FLAT PISTON RING  $246.10


13121-NJBA-003 FLAT PISTON RING .07mm $33.20