Supercross BMX Heritage Collection · The Vision Era
The cro-mo fun machine — raced by Bubba Harris, then taken to the skatepark.
Steel never left. The SX450 is the modern Supercross cro-mo — air-hardened, triple-butted Reynolds tubing in triple show-chrome — built for Bubba Harris, three-time ABA number one Pro, UCI World Champion, and 2023 Hall of Fame inductee, who races it and then takes it to the skatepark.
The SX450 carries the full modern treatment in steel: a CNC Campy integrated head tube, CNC threaded Euro bottom bracket, butted and tapered seatmast and stays, and laser-cut CNC dropouts with 10 mm slots for 3/8-inch axles.
It runs from Pro through Pro XXXL plus 24-inch cruisers, in gloss black, show chrome, racing red, and Bubba's neon green — with matching SLT cro-mo forks available.
| Spec | Detail |
|---|---|
| Production years | 2014–today |
| Material | Air-hardened triple-butted Reynolds chromoly |
| Finish | Triple show-chrome plating; gloss black, racing red, Bubba neon green |
| Head tube | CNC Campy integrated, 1-1/8 in fork |
| Bottom bracket | CNC threaded Euro |
| Seat post | 27.2 mm |
| Seatpost clamp | 28.6 mm |
| Dropouts | Laser-cut CNC, 10 mm slots / 3/8 in axle |
| Head angle / seat angle | 74.5° / 70° |
| BB height | 11.6 in |
| Top tubes | 20.5 / 21.25 / 21.75 / 22.25 in (Pro–Pro XXXL) plus 24 in sizes |
| Weight | 4 lb 2.8 oz to 4 lb 6 oz |
| Brakes | V-brake mounts, external routing |
| Price | $499.95–$589.95 |
Signature frame of Bubba Harris — 3× ABA #1 Pro, UCI World Champion, 2023 Hall of Fame.