Hi! I recently decided that I should modify my bike, to get better performance out of it. Right now I get about 95km/h of speed, but I'd like to go up to 110km/h, at least. I've heard some things about a needle shim mod , and I'm wondering if this could be done for the TW125? I'd also like to know ways of improving the general handling and speed of the bike. It's a great bike, it really is, especially at low speeds and in offroad conditions, but I'd like a bit more speed. If you have any advice on what parts to get, how to install them and so on forth, I'd really appreciate your help. I can not do this on my own...