HP Race Development is proud to be powering Tarren Santero and the No. 75 Honda CRF450R throughout the 2026 Progressive American Flat Track season.
Competing in the highly competitive KICKER AFT Singles class, Santero enters the final race weekend of the season sitting fourth in the championship standings, backed by a strong year that has included two runner-up finishes and consistent battles at the front of the field.
For us, this program is about much more than simply building an engine.
Professional flat track places unique demands on an engine. Power delivery, throttle response, acceleration, durability, and the ability to perform across everything from short tracks and TTs to high-speed Miles all play a role. Throughout the season, we have continued working with Tarren and the team to develop an engine package capable of competing at the highest level of American Flat Track.
The results have been rewarding.
Tarren's 2026 campaign has included two second-place finishes, multiple front-running performances, and has kept the No. 75 inside the championship's top group as the season reaches its conclusion.
Now, all eyes turn toward the final weekend at the legendary Springfield Mile.
With two races remaining, we're heading into Springfield with one goal in mind: finish the season strong and fight for another podium.
Race programs like this are an important part of what we do at HP Race Development. The same process of testing, development, data analysis, and continuous improvement that goes into our professional racing engines ultimately makes its way into the performance packages we build for our customers.
We're proud to play a part in Tarren's 2026 season and excited to see what the No. 75 can accomplish in the final races of the year.
Two races. One final weekend. We're chasing the podium.
