Apparently the engine is based on the KX125, although I can't be sure as info in English is hard to come by for this bike. However the bike itself is extremely common throughout Thailand, where I live. Stock they supposedly produce 30hp.
It's quite common here for people to put 2T road bike engines into MX/Enduro frames. The KR150 is favored for this as the KIPS isn't electronic and the motor is know for it's reliability.
There's a racing block that can be bought for around $180, this is 68mm, which makes it bore x stroke 68mm x 54.4, which is similar to the KDX200 (66.0 x 58.0 mm) and makes it 200cc.
Rolling chassis of aluminium framed MX bikes can be had here for around $1,500.
A KR150 engine would be around $100, but would require work. If than bore and stroke was 68mm x 54.4 can anyone guess how similar powerwise this engine could be to a KDX or how good it would be in an MX frame? The gear box may be a problem, I'm not sure how much sprockets could help?
I'm considering putting looking for a KXF chassis and adding this engine. I wouldn't do the work myself, I don't have time and can find ppl experienced with this. Parts and work are cheap, but accurate info can be difficult to come by. I used to have a KDX220 and loved it, but parts and work were difficult here, which would be an advantage of using the KR engine.
Any ideas on the viability of this idea?
