120mm Cloud Wheel Set & Gears for Backfire Boards

120mm Cloud Wheels with Pulley Set for Hammer Sledge Includes: 4× 120mm Cloud Wheels – each pre-installed with 62900 bearings (fits Hammer 10mm truck axle) 1× Pair of 39T pulleys – for 120mm wheels, with 6003 bearings pre-installed 1× Pair of HTD 305-5M-12mm belts Compatibility Notes For Zealot, Zealot S, Zealot S2 & Zealot X: Use 608 standard bearings Use 37T Cloud Wheel pulley (same pulley as for 105mm Cloud Wheels) Keep stock 260-5M belts ⚠️ Use the included washer between pulley and wheel to prevent the pulley from sitting too deep. For Hammer / Hammer Sledge with 105mm Cloud Wheels: Select HTD 300-5M-12mm belts for the correct fit.