Big Wheels for your ETM RTR! This 14 / 17 inch wheel setup will raise the stance of the bike and allow for a more supple and tractable ride over uneven terrain compared to smaller wheels. Specifications: Rim Size: 1.85x14 / 1.85x17 Included Parts: 14in Rear Wheel with 90/100-14 Knobby Tire 17in Front Wheel with 70/100-17 Knobby Tire 2x RTR Brake Rotors & Hardware Does not come with sprocket or chain anymore. For the RTR Sport you can either use your stock 420 sprocket off of the off road wheels or you can purchase the 420 63t Sprocket, 420 chain, and chain breaker NOTE: TRIMMING OF MUD FLAP NECESSARY TO ACCOMMODATE BIG WHEEL KIT THESE DO NOT FIT THE RAZOR LINE or ETM V2, THEY ARE ONLY COMPATIBLE WITH ETM RTR BIKES. RTR Big wheel Set, Electro and Co Big wheel, RTR Large Wheels