Want to upgrade your R1 Base Chassis up to a R1 Sport Chassis? You can do that at any time! The R1 Base Chassis is built to be fully upgradable to a R1 Sport and even an R1 Pro! All you have to do is purchase the Chassis Upgrade Stage 1 add-on to bring your R1 Base model up to a R1 Sport model!
Then if you want to upgrade your chassis again to a R1 Pro at another time, all you have to do is purchase the Chassis Upgrade Stage to add-on!
Add your selected color(s) HERE to the cart for your upgrade package and indicate which color is for the body and which color is for the frame in the checkout notes form box. We will then contact you to confirm your upgrade order and start your build.