Most bikes we feature are built over the course of a few weeks. Some take months, or maybe a couple of years. But this tiny XR100, despite its diminutive size, has been two whole decades in the making.
It?s owned by photographer Gregor Halenda, who is a regular on these pages. He?s part of Team Incomplete, famous for its BMW boxer, and also helped to build an amazing two-wheel-drive KTM for the apparel brand REV?IT!

Gregor is now starting his first motorcycle business, an adventure touring company called Saku-Moto. And to celebrate, he?s just completed his third (yes, third) rebuild of this little ripper.
The story goes back to the tail end of the twentieth century. ?It started with a stock 1998 XR100 I picked up after attending one of the first American Supercamps. My road racing teammates all got XR100s as well, and after a day of racing our RS125s on the track, we?d toss a few cones into the parking lot and keep racing into the night.?
As racers do, Gregor and his friends began modifying their mini bikes to gain advantage. ?Many of the mods on this XR100, like the Takegawa 120cc kit, were done almost 20 years ago.?
Over the years Gregor has also installed an ignition and lightweight rotor setup from Takegawa, plus a Mikuni 28mm flat slide carb with a custom machined intake and K&N filter.?Gases exit via a full custom tapered stainless exhaust system, with a modified silencer from the Washington State specialist BBR Motorsports.

BBR also supplied a swingarm...