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great news: now with instructions include
The difference between HD and standard kit: HD kit comes with our specially designed Heavy Duty Freewheel for those more aggressive riders and engines with compression mods.
The HD Shift kit also now comes standard with the complete 131.5mm Bottom Bracket Cartridge
Note that this kit comes with typical mountain bike style crank arms and requires 9/16" pedals. If you have a one piece crank you will most likely need to purchase new bottom bracket and pedals.
Use your existing gears/derailleur to maximize the performance and top speed of your motorized bike. This kit bolts onto your bike frame and motor and connects directly to the bikes gear system rather than using a separate sprocket.
Warning: Installation is not for the faint of heart. This kit will
allow your bike and bike engine kit to do dangerously high speeds!
Install at your own risk.
Note that this kit comes with typical mountain bike style crank
arms and requires 9/16" pedals. If you have a one piece crank you will
most likely need to purchase new pedals. works with 1/2 pitch chains
installation manual will send by email after the purchased
only for 3-piecee paddle crank bike only
the 1-pc paddle crank bike need extra parts and more modification) ( the extra parts not available now)suggest install it on single speed bike.
the multi-speed bike) may need modify the small chain or the paddle sprocket
motor kit not included
Import
duties, taxes, and charges are not included in the item price or
shipping cost. These charges are the buyer's responsibility.
Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.