Description:
90 days warrenty, best price from the factory, USA high quality !Latest Gen4 bicycleengine kit , USD54.85 for 48cc and USD57.55 for 80cc , directbottom price from the factory supplier !
What is new andbetter for the Gen4 kit:
***New one piececrank , more weight and more balanced and more power.
***New cylinderwith bigger intake air hole , takes engine more power.
***1.25mmenlarger size for the intake and exhaust , lead to more power.
***ISO crankshaft bearing, keep higher rotate speed and longer usingtime.
***High intension Alan screw.black or chrome as your wish.
***24C dualConnecting Rod Needle Bearings, more firm and stronger for the rodpin!
***Gen3 ISO carburator, bigger slide and jet ,take engine more power.
***Spring idle pulley , givecomfortable to the chain.
***415 Baihe ISO golden or blackheavy Drive Chain, not easily broken any more.
***Half round chain linkattached in the packing
***Longer alloy Clutch Leverwith more hold open catch (new style).
***Chromed 9 Hole 44 Tooth Drive Sprocket !
We also supply the commoncheaper bicycle engine kit, short black muffler and common carb andidel pullery kit !
