has anyone completed or is working on a diy lightweight e bike with a thru axle hub , battery in the down tube design, similar to a x20 mahle system? (scott addict, orbea gain). There are only a few thru axle hub motors I know of, grin all axle (9lbs, which is too heavy), mahle x20 (3 lbs, expense and no support from mahle). I am not sure how one would hook up a controller to the x20 motor
diy light weight ebike
- Thread starter endi67
- Start date
hello,
I just complete a DIY e-bike, which is a pseudo gravel/mountain bike which weights 35 pounds. I have a lengthy write up which I split into 2 parts so I can possibly post it in this forum. One part for the 10s3p in tube battery (attached) and one for the carbon fiber mountain bike with a hub motor and frame modifications. I'll attach the bike writeup in another post if I can. I think what I have done might be helpful to those folks wanting to build there own e-bike.
I just complete a DIY e-bike, which is a pseudo gravel/mountain bike which weights 35 pounds. I have a lengthy write up which I split into 2 parts so I can possibly post it in this forum. One part for the 10s3p in tube battery (attached) and one for the carbon fiber mountain bike with a hub motor and frame modifications. I'll attach the bike writeup in another post if I can. I think what I have done might be helpful to those folks wanting to build there own e-bike.
Catalyzt
Well-Known Member
- Region
- USA
I do not think anyone should download an unknown .PDF off this or any other website.
I would be interested in the specs, but this may not be that appealing to most folks, given that commercial eBikes are available with very good specs in that weight range, though they are mid-drives.
I own a Canyon Grizl:ON CF7, which weights about 36 pounds and has 60nm of torque via the Bosch SX system, and even has front suspension (and good seat post suspension.)
I enjoy it a lot in my neighborhood, which is very hilly -- my weekday 4 mile ride here is about 300 feet of vertical, and some 8 mile ride here often is 1,000 feet of vertical. But on flatter terrain, it really screams. It's so lightweight that it's easy to keep it at or over 28 MPH.
I would be interested in the specs, but this may not be that appealing to most folks, given that commercial eBikes are available with very good specs in that weight range, though they are mid-drives.
I own a Canyon Grizl:ON CF7, which weights about 36 pounds and has 60nm of torque via the Bosch SX system, and even has front suspension (and good seat post suspension.)
I enjoy it a lot in my neighborhood, which is very hilly -- my weekday 4 mile ride here is about 300 feet of vertical, and some 8 mile ride here often is 1,000 feet of vertical. But on flatter terrain, it really screams. It's so lightweight that it's easy to keep it at or over 28 MPH.
stompandgo
Well-Known Member
- Region
- USA
That would be a challenge for you to stay in zone 2.
harryS
Well-Known Member
I downloaded both documents. These are safe. Endi7 should probably include some photos in the posts.
The battery build was interesting. I have gone thru most of the same learning curve. My suggestion would be the Panasonic 50S over the 50E that he used. The 50S has over twice the maximum current, While he won't ever use it, the higher headroom will let the cells run closer to their rated capacity and also give a longer life.
The bike build seems to be an exercise in working carbon fiber. Well done @endi7 for making a good looking bike!
The battery build was interesting. I have gone thru most of the same learning curve. My suggestion would be the Panasonic 50S over the 50E that he used. The 50S has over twice the maximum current, While he won't ever use it, the higher headroom will let the cells run closer to their rated capacity and also give a longer life.
The bike build seems to be an exercise in working carbon fiber. Well done @endi7 for making a good looking bike!
Catalyzt
Well-Known Member
- Region
- USA
Exactly! (Sorry, Endi and Harry, Stomp is referencing a separate dialogue from another thread.)
Yeah, would love to see a picture, Harry, thanks for checking the PDFs. Sorry to be extra-cautious!
Hi,
I am glad you're enjoying your purchased bike. Sounds
Glad you're happy and enjoying your purchased ebike. Sounds perfect for you.
I assure you the attached files are safe. I don’t even know how to make a malicious file. The write ups, attached files are for diy folks looking for possible different ideas to help them build their bike. When I started my project bike there was only a few little segments of diy an ebike that helped. Just adding to the information pool for the diy folks. Enjoy.
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