Well, folks, hold on to your helmets. Sebastian “Sib,” the mad German genius behind the 700cc “MEGASGAS,” is back with another two-stroke rocket that’s sure to singe your eyebrows. Meet the “TworboStroke,” a turbocharged KTM 300 that’ll leave your jaw on the floor and your brain trying to comprehend how a two-stroke turbo works on two wheels.
This Turbocharged KTM 300 Supermoto Is One Crazy Machine
Sib started with a lightweight 2018 KTM EXC 300 TPI, a mean Austrian enduro machine that already boasted around 50 hp and a featherlight frame. But Sib doesn’t do “off-the-shelf.”
Inspired by snowmobiles—where turbochargers are old hat—he swapped out the KTM’s stock transfer port injection (TPI) for throttle body injection (TBI) to handle his custom turbo setup. Tuning it? Well, that’s a migraine in itself—fuel injection, oil injection, and forced induction all trying to play nice together.
Then, Sib transformed the KTM into a full-blown supermoto. We’re talking 17-inch wheels, massive 320mm brakes, a custom CNC swingarm, and suspension tweaked for sumo stunts.
He coated the whole thing in enough paint, anodizing, and Cerakote to make your wallet weep. It’s wild, it’s beautiful, and in true two-stroke form, it’s loud enough to wake the dead.
Follow the builder and check out the full write-up on BikeBound.
