Im building a Axys BigBore 860 RMK 155"!
Ive got all parts now and just looking for time to build the engine....
Big bore 860, Wössner pistons, ported case, 4mm longer rods and cylinder shim, reed spacers, stock pipe and can, PCV, AFR and EGT meters, pump gas.
I had a ProRide built the same way last year and it was awsome! Dont know any hp, but the other 800s, ported, piped, shimed etc. from diffrent companys, felt like 600s compared to it! Super strong from the bottom and fast response. I ride mostly tree riding so I like my sleds to have really fast throttle response.
With the new VES and light crank I think the Axys will extra fun!
I will let you know more when its on snow!
Here is how good my ProRide 860 sounds with stock pipe and can!