RPM R/C Products - Rear A-Arms, for Associated B64 & B64D HPI109083 recreated in the original design

recreated in the original design

then shift back into high speed when you reach the other side

tested and proven to be compatible with Jack tracks

They also made the bumper thicker than stock

Using batteries with low ratings

RPM R/C Products - Rear A-Arms, for Associated B64 & B64D HPI109083 recreated in the original designRPM A arms are the toughest A arms on the market so a rough landing or a hit from another competitor won't take you out of the race! To increase durability, RPM uses the best possible engineering grade nylons as well as using in line screws to retain the outer hinge pins. Elimination of that extra hole increases the durability of our B64 arms tremendously.