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#25 Rear sprocket

Hello, your website has become my go to site for the little projects my wife hates. So I have a new project, without getting too specific, its a type of electric off road vehicle (slow but powerful for my son). I planned on using a SPD-36500R controller, a MOT-36500X2500B motor because I like the mount, a top speed throttle adjuster, and the steel foot pedal throttle. I have most of the little odds and ends figured out but the one thing I can't figure out is a rear sprocket for a #25 chain. I am going to be using a 1" live axle and I am unable to find an axle hub for the sprockets you have or a sprocket for a #25 chain that can attach to a 1" live axle. I noticed you offer different sprockets for the motor but I was also unable to find sprockets for an 8mm chain. I think the #25 chain would be strong enough but I would like to go to a bigger size if possible, plus rear sprockets are more easily available for #35 or 420 chains. I have not purchased anything yet because I am trying to make sure I have all these little conflicts figured out so I am able to move to the left or right with my plans. Any advice or help finding what might work would be greatly appreciated. 

#25 chain is plenty strong enough for a 500 Watt motor however 8mm chain is a larger chain size and would last a little longer before it needed to be replaced than #25 chain would. #35 and #420 chains are larger than 8mm however we do not currently have sprockets for #35 or #420 chain that fit our 500 Watt motors. We special ordered an in a few months will have an 11 tooth sprocket for #420 chain that will fit our 500 Watt, 750 Watt, and 1000 Watt motors though.

I found the parts that you need however they have a freewheel between the axle and sprocket. If you need the sprocket to not freewheel so the vehicle can have reverse then the freewheel could easily be made solid (not to freewheel) with a few tack welds, and the freewheel could be threaded and then welded onto the axle adapter because they are both made from steel.

Attached is a photo of the parts, in the photo I included an 89 tooth sprocket for #25 chain however any #25 chain sprocket we sell that fits a freewheel (55, 65, 80, tooth) could be substituted for the 89 tooth sprocket. We also have sprockets for 8mm chain that will fit the freewheel available in 44 and 54 teeth sizes.

Here is our link to the axle adapter: https://cart.electricscooterparts.com/ProductDetails.asp?ProductCode=FWM-ADAPTER1

Here is a link to the freewheel that fits the axle adapter and sprockets: https://cart.electricscooterparts.com/ProductDetails.asp?ProductCode=FWM-250

Here is the link to our nut and bolt set that attaches the sprocket to the freewheel: https://cart.electricscooterparts.com/ProductDetails.asp?ProductCode=HDW-100

Here is a link to our #25 sprockets that attach to freewheels: https://electricscooterparts.com/sprockets25chain-wheel.html#wheel-sprockets-that-attach-to-freewheels

Here is a link to our 8mm sprockets that attach to freewheels: https://electricscooterparts.com/sprockets8mmchain.html


Please let us know if you have any questions.

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