RPM Rear A-arms for the ARRMA Big Rock, Senton & Granite 4x4s st Arrma Senton 3S BLX Sealed

Arrma Senton 3S BLX Sealed Bearing Kit

The shaft driven 4WD TT-02 chassis employs a longitudinal layout with the battery on the left and the motor on the right

High-performance waterproof XL-5 Electronic Speed Control

Tire(F/R)                                78×18mm/86×23mm

Polycarbonate paint for body

RPM Rear A-arms for the ARRMA Big Rock, Senton & Granite 4x4s st Arrma Senton 3S BLX SealedSuper tough RPM rear arms that fit many Arrma 3s and Mega vehicles. RPM A arms for the 4x4 versions of the Granite, Senton & Big Rock are the answer to the questions you didn't know you had. Are you looking for more adjustability? Check! How about better durability? Got that covered too. How about lightweight? Yup, no problem! Adjustability: We've added a second shock mount to both our front and rear A arms to the outside of the stock shock mount,