Mtx125

[dec3326]

Hi all I'm currently rebuilding a 92 mtx 125 a long the way of building it I have found most parts are hard to come by but parts from such as cr125 are easy to pick up and generally fit aswell .... I have got to the point of new exhaust time the only pipes I can find for a mtx is the big one off eBay which I'm not that keen on dose anybody know if cr or kmx pipes will fit It i don't want to spend a few hundred quid on a nice shiny pipe and it not fit .... Thanks in advance dec

[stevo as b4]

Big One and Giannelli both did pipes for the MTX125.

If the original pipe is unavailable or un usable, I would consider the Big One pipe. It's the silencer that is the poor quality bit really compared to a DEP or similar.

I have a Big One full system on my KMX125, and though it's louder than stock, it's far from offensive. Certainly it's far quieter than a Ginanelli system, which are reported to make the most top end power on KMX's but with loads of tinny noise too! Also Giannelli pipes have a reputation for having bugger all midrange power compared to the std pipe on many 125's of that era.

I plan on dyno'ing my KMX with the Big one pipe, and then trying a Giannelli back to back, to see which gives the best power curve, before I have a system chromed.

The KMX pipe won't fit the MTX it runs on the wrong side, and modern CR125 pipes are again all routed on the RHS and are a totally different shape that would be hard to make fit. I doubt you'd get good performance from a CR pipe anyway, as the CR revs to 11500-12000rpm, and the max power on the MTX125 is at about 8700rpm.

If you do fit a Giannelli pipe, let us know how you get on, as Id be interested to see how it goes anyway!

[dec3326]

Ok m8 thanks will let you know how it turns out cheers