Hi guys,

I have two high powered ebike builds and I am having trouble sourcing some upgrades. I have one bike that has a 3000w nominal mid mounted battery that uses the drive train for momentum. The chain and cogs are not able to hold up unless the power output is lowered using the controller. Anyways I want to install a much sturdier chain and cogs even if I have to do a single-speed setup. I can't find any info on this type of upgrade.

That previous bike was for my father. My bike on the other hand can reach speeds of about 45mph and I use a DD motor. I want to be able to pedal around 30-40mph range. My wheels are 22" and my 12t x 52t setup is not at all useful above 30mph. It looks like if I change to an 80t cog for my front then I'll be able to have a nice cadence for 30-40mph. Does anyone have a link to an 80t chainwheel that is for sale?

TLDR:
1.) Any ideas on sourcing a motorcycle chain/cogs that can attach to a standard bicycle?
2.) Any ideas on sourcing a 80t chainwheel?

Thank you,
Al