The Cycle Shed does not take engine building lightly. There is a large
difference between getting inside an engine with a grinder and moving
ports around and modifying an engine for better performance. There is
also reliability limits for each engine. If the limit is pushed too far,
as many builders do, reliability becomes an issue. Here at The Cycle
Shed we know the KTM engines and where to safely get a little more power
out of them.
For those that would like to increase the
displacement of their KTM we recommend the official KTM SXS big bore
kits. We have installed numerous SXS kits on 2 and 4-stroke KTMs. These
kits maintain OEM reliability and you are getting KTM OEM quality. You
can be assured that when you purchase and have a SXS big bore kit
installed on your KTM that the job is done right and reliability is
We specialize in KTM 250 2-stroke
engines. Whether you have a SX, XC or XC-W, we know how to get the power
out of this engine and improve the rideability of your bike.