Pitster(GPX), Motovert, Pitpro manufacturer pit bike, motocycle, scooter, ATV from China. ENGINE Displacement - 135cc Type - 4 Stroke Single Cylinder Cooling - oil-Cooled Transmission - Manual 4 Speed w/ Clutch Shifter - Long / Folding Chromo Drive Train - Chain Ignition - Kick Start/CDI Spark Plug - NGK C7HSA Carburetor - Mikuni Compression Ratio 10. 6: 1 Bore & Stroke - 54mm x 57mm Valve Train - SOHC: Two Valve Final Drive - #420 16T Front / 41 T Maximum Power 9. 3 HP /8500 RPM Fuel Capacity - 0. 8 Gallons (3L) Protection - Aluminum Skid Plate SUSPENSION Front Suspension - Rebound adjustable Rear Suspension - preload adjustable Front Fork Travel - 5 inches Rear Fork Travel - 7 inches BRAKES Front Brake - Hydraulic disk 200MM Front Brake disc-wavy Rear Brake - Hydraulic disk 160MM Rear Brake disc-wavy TIRES & RIMS Front Tire - Tire 2. 75 x 14 Millville Tire Rear Tire - Tire3. 0x 12 Millville Tire Front Rim - Anodized Aluminum 14"/32 spoke Rear Rim - Anodized Aluminum 12"/32 spoke DIMENSIONS Wheelbase 1120mm Seat Height 750mm Bar Height 740mm Dry Weight 64kg Ground Clearance 410mm Crate Dimensions 1400mm x 740mm x 730mm Frame Chromo/cradle Oil cooled-alloy Handle bar-alloy Fuel tank cap-alloy Swingarm-Longer/strong adjustable Seat - 40mm Tall Gripper Silencer - Performance Head Pipe &alloy Muffler&High flow Chain Adjustaber: Alloy red Pegs -Stainess Oversized