Description New gear box for a Zongshen 125CC H/O engines. It consists of the 2 shafts of gears as pictured. Input shaft is 144.48mm long with 17mm 6 tooth spline on the right side and 12mm on the other end for the bearing, the gears are 13 teeth, 17 teeth, 22 teeth, 25 teeth. Output shaft is 113.4mm long and has a 17mm output spline and 12mm on the right side for the bearing, the gears are 34 teeth, 29 teeth, 25 teeth, 22 teeth. Please check your gearbox dimensions before asking questions as we have been very accurate with the description and most questions should be answered above. ORDER BEFORE 12 MIDDAY ON MONDAYS OR AFTER BANK HOLIDAYS, 2PM TUESDAY TO FRIDAY FOR SAME DAY DISPATCH. WE ONLY DISPATCH ORDERS MONDAY TO FRIDAY. If you have any questions, please call us on 01789766777. Phone opening hours 10am-2pm Monday to Friday
