Browsing tag

4-stroke

2018 YAMAHA YZ450F MOTOCROSS BUILD: DUBYA USA PROJECT GRANDPA

On this week’s 4-Stroke Project Spotlight the main focus is our 2018 Yamaha YZ450F motocross project with long-time test rider Pete “Grandpa” Murray. It’s pretty amazing how drastically different our Yamaha looked and performed after the changes we made. This week’s Thumper Theater features a nitromethane burning hillclimb machine, 2019 Yamaha YZ450F in the raw […]

2015 KTM 250 SX-F BUILD: PROJECT BIKE SPOTLIGHT

The 2015 KTM 250 SX-F Project bike was done for comfort and versatility. We wanted to make a good bike just a little bit better and with a few upgrades it really helped. The added parts also made this bike stand out even more at the track. Check out what we did below. Tusk Impact […]