# What happened
5.11 Triumph Factory Racing announced that Aaron Plessinger has joined the team on a two-year agreement to race the TF 450-X in the AMA Supercross and Pro Motocross championships. The move covers the 2027 SuperMotocross World Championship season and the preceding 2027 domestic series.
# Why it matters
Plessinger is described as a highly experienced American rider with race-winning credentials and a strong public profile. Triumph entered top-level motocross competition relatively recently, and adding a rider of Plessinger's experience is framed as part of the team's next development step for its 450 program.
# Immediate timeline and activities
- Oct 6–9, 2026: Plessinger's first official public appearance for Triumph will be at Triumph's Global Dealer Conference in Thailand, where about 1,200 dealers will be present.
- November 2026: His first competitive outing on the Triumph will be the Paris Supercross.
- Off-season and pre-2027: An extensive testing and development program will follow, aimed at preparing for the 2027 SuperMotocross season.
# What the team and rider say
Aaron Plessinger: He expressed excitement about joining 5.11 Triumph Factory Racing, noting he's followed the team's progress and believes in its potential. He said the shared goal is to win races and fight for championships and looks forward to time with the team in Thailand, testing in Georgia, and the Paris Supercross as the first competitive test.
Ian Kimber, Head of Global Racing Programs, Triumph Motorcycles: Kimber noted Plessinger's talent, professionalism, fan appeal, and that his experience and enthusiasm will add a new dimension to the team and the TF 450-X development.
# What to watch next
- Dealer conference appearance in Thailand (early October 2026) for initial public integration with Triumph.
- Paris Supercross in November 2026 as Plessinger's first competition aboard the TF 450-X.
# Bottom line