New Design 2013 Motor Kit For Bicycle

Type	Cruiser		Gender	Men
Wheel Size	Other, 24"		Frame Material	Steel
Fork Material	Steel		Rim Material	Aluminum
Net Weight	9.5Kgs		Brand Name	Runwell
Model Number	RW-8s21

Specifications

Bicycle engine kit , single cylinder air cooling 2 stroke , Gen4 latest design, 90 days' warranty !! Bottom price from the fact

Latest Gen4 bicycle engine kit , USD54.85 for 48cc and USD57.55 for 80cc , direct bottom price from the factory supplier !

What is new and better for the Gen4 kit:

***New one piece crank , more weight and more balanced and more power.

***New cylinder with bigger intake air hole , takes engine more power.

***1.25mm enlarger size for the intake and exhaust , lead to more power .

***ISO crank shaft bearing, keep higher rotate speed and longer using time.

***High intension Alan screw .black or chrome as your wish.

***24C dual Connecting Rod Needle Bearings, more firm and stronger for the rod pin!

***Gen3 ISO carburator, bigger slide and jet , take engine more power.
***Spring idle pulley , give comfortable to the chain.

***415 Baihe ISO golden or black heavy Drive Chain, not easily broken any more.

***Half round chain link attached in the packing

***Longer alloy Clutch Lever with more hold open catch (new style).
***Chromed 9 Hole 44 Tooth Drive Sprocket !

We also supply the common cheaper bicycle engine kit, short black muffler and common carb and idel pullery kit !