Mxology crankshaft assembly for the Triumph TF250X, conrod and journal in close-up
Race engine internals · Triumph TF250X

Built for one engine, and built properly.

Mxology make race internals for the Triumph TF250X and TF250-E. That is the entire catalogue — which is exactly why the parts fit, and why they are worth fitting.

Shop Mxology

Mxology design race internals for one engine — the Triumph TF250X and TF250-E. That is the entire catalogue, and it is exactly why the parts fit.

They design it. Specialists build it.

Mxology design in house and then hand each piece to whoever is genuinely best at making it, rather than making everything themselves. That is not outsourcing — it is the reason a piston from a one-engine company is forged by JE and a conrod is made by Pankl.

It also means you can look up every one of those names. We think that matters more than anything we could tell you about the brand.

  • JE Pistons Forge the forged piston.
  • PSI Make the valve springs.
  • Pankl Make the conrod in the crank assembly.
  • GET SX1 PRO 4T The ECU, on Mxology's own calibration.
Mxology connecting rod, manufactured by Pankl, for the Triumph TF250X

British brand. American shelf.

Their pricing is in pounds and the domain ends in .co.uk, which makes Mxology look like an import lane. They are not one. Their stock sits in a US warehouse near us, so these parts reach Brea the same way everything else on this site does.

Fitment, plainly

Everything here is built for the Triumph TF250X and TF250-E. If you are running anything else, call the parts desk on (714) 256-6700 before you order and we will tell you straight whether it fits.

Ships nationwide Pickup in Brea, CA Real answers before you buy