UL — Ultra Light (2002) — Supercross BMX Heritage
Supercross BMX Heritage Collection · The Refinement Era
UL — Ultra Light
2002Triple-butted cro-mo with post-weld heat treatment — steel, refined to its limit.
The UL was Supercross squeezing everything out of steel: triple-butted cro-mo tubing, post-weld heat treatment, and a lug design that kept the rear end stiff without the traditional stay arrangement.
The Story
Launched in 2002, the Ultra Light was the technical peak of the Supercross cro-mo program — a departure from the classic rear-end design, using heat treatment and lug engineering to hold stiffness while cutting weight.
Specifications
| Spec | Detail |
|---|---|
| Launch year | 2002 |
| Material | Triple-butted chromoly |
| Fork | 1-1/8 in threadless |
| Head tube | 1-1/8 in press-in |
| Seatmast | 26.6 mm |
| Seatpost clamp | 1-1/8 in |
| Bottom bracket | Euro threaded, 68 mm shell |
| Brakes | Cantilever |
| Process | Post-weld heat treatment |
| Design | Lug design engineered for rear-end stiffness |
| Evolved into | The R-CR (2006) |