Mid drive bike with turnigy 50cc motor

ors150

100 mW
Joined
Jan 7, 2018
Messages
49
hey guys,
im going for my first electric bike build and i have few questions,
first after some checks to get to 40km/h i need drive train of 1/20
now i thought to put sprocket of 10 on the engine then to to the sprocket of the paddles the smaller one to the biggest one of the bike,
its downhill bike , that why i choose that low speed for the power with 10s battery ,
now i want to know where i can i buy sprocket bore for the engine 10mm dia, about 10 teeth for bicycle chain,
u might have better idea for me for the drive train? my wheel atm is 26" maybe will be smaller in the future (20" fatbike wheel)
engine specs:172kv
Max current: 120A
Watts: 5300w
Diameter of shaft: 10mm
ty thats my bike btw
 

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HEY I prefer to use the turingy 50 cc and speed contrller that i already have...
could u help me find some sprocket for 10mm?
i cannot get motor to electric bike over 500w to my country...
 
There have been some builds using Turnigy "50cc" motors before; some of the posts listed in this search
https://endless-sphere.com/forums/search.php?keywords=turnigy+50cc&terms=all&author=&sc=1&sf=all&sr=posts&sk=t&sd=d&st=0&ch=300&t=0&submit=Search
may have useful info for you.
 
ty alot , i have read alot from there , u might know where can i get the sprocket can find one that fit the 10mm
 
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