Search found 194 matches

by thoroughbred
Feb 25 2021 7:27am
Forum: E-Scooter and Motorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 36
Views: 1052

Re: Conversion of a Bultaco Sherpa

I say B+ cable attaches to NC. The port that goes into the controller is raised and has a red grommet. The screw has a witness mark on it so its tightened by Kelly already. The other bolt is probably loose and goes into a blind hole in the case ie NC
by thoroughbred
Feb 22 2021 7:43pm
Forum: Motor Technology
Topic: Help! Anyone recognise this Sevcon-style controller from China?
Replies: 5
Views: 231

Re: Help! Anyone recognise this Sevcon-style controller from China?

That is the offroad version of the endless sphere logo :es:

i'm interested in answers, too.... 8)
by thoroughbred
Feb 15 2021 7:53pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: KDX 20.0 cells trailbike conversion
Replies: 28
Views: 3621

Re: KDX 20.0 cells trailbike conversion

The problem with fitting a clutch comes from trying to package cylinders of various diameter and length into a finite space. The countersprocket position is set in stone. I'm having real trouble coming up with a way of having a jackshaft arrangement incorporating a clutch. Using an existing gearbox ...
by thoroughbred
Feb 14 2021 7:13pm
Forum: E-Scooter and Motorcycle Build Threads
Topic: Yamaha YZF250F
Replies: 68
Views: 3480

Re: Yamaha YZF250F

very nice work! You can get 1/2 links for the chain. I think this roller tensioner idea is interesting:
https://www.renold.com/products/accessories/roll-ring/

did you get good news about the motor being built and any progress on the controller/s?
by thoroughbred
Feb 13 2021 6:43pm
Forum: EBike Non-hub Motor Drives
Topic: SURRON LB: RESEARCH & DEVELOPEMENT
Replies: 260
Views: 37086

Re: SURRON LB: RESEARCH & DEVELOPEMENT

Will the light bee motor be ok with 24S battery? I read that Luna melted some motors down and wonder what the actual limits of the motor are. Isn't the storm bee 96V and does that equate to 24S?
by thoroughbred
Feb 05 2021 8:36pm
Forum: Vendor Relations Corner
Topic: Lester Electrical: thumbs up
Replies: 1
Views: 143

Lester Electrical: thumbs up

This is sort of tangential to most of the activity here on ES but maybe others use these big battery chargers on golf carts and other wet cell projects. I had bought a used 24 volt manlift at auction. The onboard charger flashed error codes and didnt charge. I was going to start a thread here to ask...
by thoroughbred
Jan 31 2021 6:08pm
Forum: EBike Technical
Topic: Display for 72v BAC8000?
Replies: 7
Views: 161

Re: Display for 72v BAC8000?

Every single controller manufacturer abhors the DIYer market, actively discourages us from trying to do what we do using their stuff. An OEM seeking multiple containers, or at least pallet quantities presumably does get support but that's on an engineer to engineer shorthand level. Do you know of a...
by thoroughbred
Jan 26 2021 10:06am
Forum: E-Scooter and Motorcycle General Discussion
Topic: KDX 20.0 cells trailbike conversion
Replies: 28
Views: 3621

Re: KDX 20.0 cells trailbike conversion

These guys got closer with the denzel gearbox unit in a KX chassis. The clutch and shifter functions are still really crude. I don't speak the language but sort of understand what they are getting at in the video: https://www.youtube.com/watch?v=lmtPCi1UIws&t=587s&ab_channel=StolzUser&fb...
by thoroughbred
Jan 25 2021 6:00pm
Forum: EBike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 5396
Views: 605014

Re: Sur-Ron - New Mid drive Bike

motomoto wrote:
Jan 24 2021 8:23pm
This place is on the next street from my shop, holy crap.
like a new born babe and not yet listed in
this giggle world;)??? https://ebike.ntc-tech.com
Is it an actual shop or a pair of guys in college? https://emotobros.com/downloads
by thoroughbred
Jan 24 2021 6:36pm
Forum: EBike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 5396
Views: 605014

Re: Sur-Ron - New Mid drive Bike

20210124_182911.jpg
20210124_182911.jpg (328.02 KiB) Viewed 759 times
Michelin mentioned by smdub, 3 psi tubliss feels like riding on marshmallows. Owner dished the wheel leftward with 2 spoke lengths
by thoroughbred
Jan 23 2021 9:00pm
Forum: EBike Non-hub Motor Drives
Topic: SURRON LB: RESEARCH & DEVELOPEMENT
Replies: 260
Views: 37086

Re: SURRON LB: RESEARCH & DEVELOPEMENT

WWW has been around forever, i see they have wheels for Cake bike and light bee https://woodyswheelworks.com/collections/complete-wheels/products/sur-ron-x-wheel-21x1-60-off-road $450 for a complete wheel with a billet hub. $90 cheaper if you supply your surron hub. Where can you get a billet hub ma...
by thoroughbred
Jan 17 2021 8:02am
Forum: E-Scooter and Motorcycle Build Threads
Topic: Yamaha YZF250F
Replies: 68
Views: 3480

Re: Yamaha YZF250F

This man has interesting way to use the trans for gear reduction https://altaownersforum.com/threads/a-l ... post-26642
by thoroughbred
Jan 16 2021 8:16am
Forum: E-Scooter and Motorcycle Build Threads
Topic: Yamaha YZF250F
Replies: 68
Views: 3480

Re: Yamaha YZ250F

This will be great. looks like these guys did a very similar build, maybe even with the same cells? Honda?

https://thumpertalk.com/forums/topic/13 ... ctric-bbp/
by thoroughbred
Jan 11 2021 11:08am
Forum: EBike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 5396
Views: 605014

Re: Sur-Ron - New Mid drive Bike

It's is the stock wheel, not sure what you mean about safety thing. Ok thanks for the details. the safety thing is the extra ridge they put on some moto wheels to retain the bead on a tubeless setup. obviously not necessary with your setup. I didnt know that rim pins can be used until i saw some ol...
by thoroughbred
Jan 07 2021 8:01am
Forum: EBike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 5396
Views: 605014

Re: Sur-Ron - New Mid drive Bike

Sup y'all! So after over 2,300 tubeless miles it was time to replace my trusty Bridgeport M403 with the newer M203. The first tubeless conversions I had to use a strap around the tire to get enough of a seal for the tire to inflate. It really was the most pain-in-the-ass task in the whole procedure...
by thoroughbred
Jan 04 2021 5:32am
Forum: EBike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 5396
Views: 605014

Re: Sur-Ron - New Mid drive Bike

After running the 19 rear wheel with a geomax knobby for a year I wanted to try a 18 as the 19 has small knobs and puny sidewall. I followed offroaders nice write up and bought some supplies. Apparently, all ebay 12g sapim spokes are not created equally. 20210103_191251.jpg the hook portion of these...
by thoroughbred
Dec 26 2020 7:07am
Forum: E-Scooter and Motorcycle General Discussion
Topic: KDX 20.0 cells trailbike conversion
Replies: 28
Views: 3621

Re: KDX 20.0 cells trailbike conversion

I have started to wonder if using a Motenergy split stator motor would make things easier to reach the 200# powerful dirtbike result utilizing somewhat affordable battery and controller offerings. In my digging I found that DanGT has the same thoughts! :thumb: https://endless-sphere.com/forums/viewt...
by thoroughbred
Dec 24 2020 5:17pm
Forum: Motor Technology
Topic: Build a controller for an Alta OEM motor and inverter?
Replies: 17
Views: 1134

Re: Build a controller for an Alta OEM motor and inverter?

I played a little with the working bike to see what happens to the motor position data when I spin the rear wheel. The number goes from 0 up to 65,535 then again to 0. The description field says "Accumulated motor position, 256/revolution" 256 x 256=65536 Not sure what that means.... I gue...
by thoroughbred
Dec 24 2020 10:31am
Forum: E-Scooter and Motorcycle Build Threads
Topic: KTM 200 exc goes electric
Replies: 215
Views: 31860

Re: KTM 200 exc goes electric

I was thinking that those motors have two separate stators, each 3 phase that you could hook separate controllers onto. Arlo might have done 2 controllers with a Zero motor, which i think is the same design, albeit waterproof. obviously, my understanding is lacking here :)
by thoroughbred
Dec 24 2020 7:25am
Forum: E-Scooter and Motorcycle Build Threads
Topic: KTM 200 exc goes electric
Replies: 215
Views: 31860

Re: KTM 200 exc goes electric

I think it is odd, there are motors available. But no controllers :? And qs seems to have their 180 90h motor more or less finished (maybe, who knows?), but dont seem to release it as they dont have a controller for it. They dont seem to sell it without controller either though, so I wonder how fin...
by thoroughbred
Dec 24 2020 7:13am
Forum: EBike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 5396
Views: 605014

Re: Sur-Ron - New Mid drive Bike

Hallo, Does anyone know which connectors are on the original controller? And where do you buy them? I'm guessing you are in europe? in usa we have https://www.ebay.com/itm/WATERPROOF-9-PIN-ELECTRICAL-DJ7091Y-2-3-21-11-WIRE-CONNECTOR-PLUG/264512135070?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p20578...
by thoroughbred
Dec 22 2020 8:10am
Forum: E-Scooter and Motorcycle General Discussion
Topic: KDX 20.0 cells trailbike conversion
Replies: 28
Views: 3621

Re: KDX 20.0 cells trailbike conversion

Thanks! In learning more about the qs motors I'm leaning towards the 4000 Watt version +/- the votol 150 controller. The votol 200 doesn't generate any positive info in my research. The integral gear reduction looks interesting but is obviously untested still. Radio silence so far. Not sure if 2.5:1...
by thoroughbred
Dec 21 2020 7:22am
Forum: E-Scooter and Motorcycle General Discussion
Topic: KDX 20.0 cells trailbike conversion
Replies: 28
Views: 3621

Re: KDX 20.0 cells trailbike conversion

2 years later update: no progress! (That's not entirely true as now I have a bunch of spare parts to work with.) I ended up using those panasonic prismatics in one of my zero motorcycles and they work great. In the meantime I have bought and maxxed out a light bee and found an Alta. The KDX had been...