SX80 LWR Junior (1993–1994) — Supercross BMX Heritage
Supercross BMX Heritage Collection · The Cro-Mo Years
SX80 LWR Junior
1993–1994LWR stood for Light Weight Racer — the small-size Supercross line: SX50 Mini, SX60 Junior, SX80 Expert.
Little riders load the gate too. LWR stood for Light Weight Racer, and the line arrived in 1993 to put real Supercross construction under the smallest racers in the building.
The Story
Introduced in 1993, the LWR brought the Supercross cro-mo formula down to junior scale. By 1995 the size ladder read SX50 Mini, SX60 Junior, and SX80 Expert — alongside the SX125 Pro, SX250 Pro XL, Moto Monster XXXL, and SX500 Cruiser.
The small frames were engineered for small riders, not just shrunk: a modified single-tube version of the Supercross secondary seat stay design, a Euro threaded bottom bracket, and a 1" road-style head tube. Top tubes ran 17.5" on the SX50 Mini, 18.5" on the SX60 Junior, and 19.5" on the SX80 Expert.
Specifications
| Spec | Detail |
|---|---|
| Production years | 1993–1994 (LWR); SX50/SX60/SX80 ladder from 1995 |
| Material | 4130 chromoly |
| Rear end | Modified single-tube version of the secondary seat stay design |
| Bottom bracket | Euro threaded |
| Seat post | 13/16 in post, 7/8 in clamp |
| Head tube | 1 in road-bike style |
| Top tubes | 17.5 in (SX50 Mini) · 18.5 in (SX60 Junior) · 19.5 in (SX80 Expert) |