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Chinese Carbon E-Bikes => E-Bike Frames & Builds => Topic started by: Lucky on March 17, 2025, 03:27:28 AM

Title: E-gravel bike / frame
Post by: Lucky on March 17, 2025, 03:27:28 AM
Hello, just new here

Since I have a limitation in my legs (partial paralysis) I am looking for a carbon e-gravel bike.

Searching a frame to mount a Bosch Performance Line CX motor (85 Nm) or other, because I need this sort of torque.

In addition, it is important to have a 31.6 mm seatpost, so that I can mount a dropper post of at least 150 mm with control on my thumb, because I cannot stand on my toes.

Electronic shifting is preferred (Shimano?)
I would be very happy with a solution.

Thx a lot,
Luc (Belgium)
Title: Re: E-gravel bike / frame
Post by: Tijoe on March 17, 2025, 03:44:32 PM
I seldom run across a carbon gravel E-bikes on Aliexpress.   (Some offerings if you are looking for a Carbon Hardtail 29er E-bike frame.)

Look at Light Carbon Bikes or 4leaf.   (Majority of Chinese offerings use Bafang motors, rather than Bosch.)

https://www.lightcarbon.com/e-bike-frames_c17

https://lfbikes.com/products/bafang-m820-e-gravel-carbon?variant=50051307602204&country=US&currency=USD&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&srsltid=AfmBOorc7SMDUpoAGmfTqP8MRb3B2E6__SrDoOi17YhduaTyjvjJhEgwYwo&gQT=1
Title: Re: E-gravel bike / frame
Post by: Serge_K on March 18, 2025, 01:45:57 AM
Chinese electric bikes are the next frontier, and still elusive every time i check. Sourcing integrated motors & batteries is a problem, there's usually high MOQ. Obviously sourcing suitables frames isn't easy either, but it's easier than sourcing the right motor kit. It gets expensive, too, so for something with a lot of unknowns, it's quite a commitment. For what i need the bikes to do, i also need a jail broken software because an electric bike maxxed out at 25kmh is entirely useless, and that is also a problem. I'd build road bikes for girlfriends and slower guys to ride up to at least 40kmh, so we dont drop people.
The only practical route i know of that involves not buying something off the shelf is a bafang kit on an aluminium frame (you risk crushing the BB area if it's carbon). JohnnyNerdOut is a great resource on youtube.
Title: Re: E-gravel bike / frame
Post by: kwantani on March 18, 2025, 03:41:44 PM
The only full e-gravel bike I came into is the 4-Leafs e-gravel complete bike from their site last year, full carbon -egravel with mid-drive bafang motor and chinese groupsets. Asking price was usd$2500. But that bike is no longer on their site this year.