KX112 VHM Cylinder Head 

We run apex technical innovation heads with the drop in inserts. Best mod ever! Almost we vmh with my sons but i run apex on my yz250 for about a year. So i figure go with what you know. Now his kx pr2 112cc motor just runs the pr2 turned down head. Cool build hope you bought both inserts for the head. Have a good one 👍

I raced professional motocross in the 80’s before the big bucks. I was sponsored by Team Suzuki. Anyway, 2 strokes compression is made in the crankcase. The new head is beautiful but probably will not make any performance gains. Race bikes are so evenly matched horsepower/weight wise from each manufacturer. The rider makes the difference. Going down the straight away, horsepower wins. Better riders catch up in the Twisties. Engine mods are the most expensive mods with small horsepower gains vs what comes out of the factoru on race bikes. Lightening the bike helps in the acceleration, braking and handling. Surprised we do not see more carbon fiber frames at least in the professional sector. Even making the engine part of stressed member of the frame would help similar to high performance street bikes. KTM makes the best bikes from the factory with no mods needed. When Kawasaki made the 100 cc 2 stroke it was because of the increased unsprung weight of the 19/16 wheels. Plus more rotating mass. Truthfully the 100 cc was not enough, hence the 112 like Yamaha. I would of gone with a stock 125 like a YZ 125 or 250. Just sayin

Did you move to higher octane race fuel? I had Pro Circuit cut my YZ85 head for 108 octane VP C12, and boy, what a huge power increase!

You can’t just use a razor blade to cut the grip off of the throttle assembly?

Does it add extra power , with the standard insert?

So the vhm cylinder head is a 85 cylinder head but it fits on a 112?

Do you have to do any carb tuning for these mods ? What did you do to your carb

Can I buy the old head off you?

☺️👏

Which P/N insert did you use with that head?

Rodriguez Sharon Johnson Helen Allen James