Search found 69 matches

by spektrolyte
Jun 28 2018 5:04pm
Forum: Items for Sale - Used
Topic: QS205 V3 hub motor stator $45
Replies: 6
Views: 877

Re: QS205 V3 hub motor stator $45

I really want this but am in Europe.

If you can be bothered to ship I'll pay.
by spektrolyte
Jun 17 2018 6:02pm
Forum: E-Bike Build Threads / Photos & Video
Topic: A minimal Q76 offroad build
Replies: 27
Views: 1323

Re: A minimal Q76 offroad build

Screen Shot 2018-06-18 at 00.01.19.jpg
You wind it like this, it's going to take 420 metres of 0.5mm enamelled copper wire which will cost me £10 plus maybe several hours, of which I have plenty at the moment. Worth a try considering the motors are toast otherwise.
by spektrolyte
Jun 17 2018 3:27am
Forum: E-Bike Build Threads / Photos & Video
Topic: A minimal Q76 offroad build
Replies: 27
Views: 1323

Re: A minimal Q76 offroad build

Thanks but I'm going to change the motor and am trying to work out what might be the best option.
by spektrolyte
Jun 16 2018 6:39pm
Forum: E-Bike Build Threads / Photos & Video
Topic: A minimal Q76 offroad build
Replies: 27
Views: 1323

Re: A minimal Q76 offroad build

"But here is why I think it works for me. The low speed motor simply tolerates the slower speeds you get when you climb steep stuff. So the same 1500 watts or so I can get out of that motor can be used at slower speeds. It's not more power, or more torque. It's just less stalling of the motor when ...
by spektrolyte
Jun 16 2018 6:18pm
Forum: E-Bike Build Threads / Photos & Video
Topic: A minimal Q76 offroad build
Replies: 27
Views: 1323

Re: A minimal Q76 offroad build

A 5T motor has more torque and less speed than a 3T motor, the number of turns affects the RPM per volt so you can rewind a motor with more turns to get more torque and less speed at the same voltage. Prove me wrong here if you like, I see you are a very experienced user of the forum. Tell me what I...
by spektrolyte
Jun 16 2018 7:26am
Forum: E-Bike Build Threads / Photos & Video
Topic: A minimal Q76 offroad build
Replies: 27
Views: 1323

Re: A minimal Q76 offroad build

If I was going to use a Bafang I'd just put it on a decent mountain bike frame instead of this cromo steel lump with 80s suspension design. Have been handed a dead MXUS which I am going to try and rewind for torque rather than speed. That could be quite a lot of fun if it works. Im talking to someon...
by spektrolyte
Jun 15 2018 4:23pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Andrew's LMX 161 Chain-drive massacre Build Log
Replies: 57
Views: 3195

Re: Andrew's LMX 161 Chain-drive massacre Build Log

Ah right, thought it was like the one in my Raptor, didn't follow the link.

My Sabvoton is unlocked for 200A so a 63A domestic breaker fits the bill nicely.
by spektrolyte
Jun 15 2018 3:58pm
Forum: Motor Technology
Topic: Anyone have any tips on rewinding MXUS 3k?
Replies: 12
Views: 534

Re: Anyone have any tips on rewinding MXUS 3k?

LOL. Charming.

I haven't done it before so I don't know what I need to know and was just asking for some help...
by spektrolyte
Jun 15 2018 11:48am
Forum: E-Bike Build Threads / Photos & Video
Topic: Andrew's LMX 161 Chain-drive massacre Build Log
Replies: 57
Views: 3195

Re: Andrew's LMX 161 Chain-drive massacre Build Log

Nice work. The 63A breaker is rated for use at 240v, so its more like 200A for a 72v pack.
by spektrolyte
Jun 15 2018 11:31am
Forum: Motor Technology
Topic: Anyone have any tips on rewinding MXUS 3k?
Replies: 12
Views: 534

Re: Anyone have any tips on rewinding MXUS 3k?

I am going to do the rewind, so I'm looking for tips to do it properly, not naysayers telling me not to bother. You haven't seen the inside of either motor. There is only damage to one of the phases so its more likely a malfunction than overuse. If I get them working its a bonus if I don't I have le...
by spektrolyte
Jun 15 2018 11:21am
Forum: Items for Sale - New
Topic: EU - MAC 12T motors in 24" rims
Replies: 17
Views: 2001

Re: EU - MAC 12T motors in 24" rims

I have never ridden a geared motor, how does performance compare to MXUS 3k, and which controller did you use with it?

Seems my Sabvoton and maybe Adaptto isn't going to work.
by spektrolyte
Jun 15 2018 9:14am
Forum: Motor Technology
Topic: Anyone have any tips on rewinding MXUS 3k?
Replies: 12
Views: 534

Re: How easy is it to repair burnt windings?

Having taken a closer look it’s not going to be feasible to recoat the wiring so a rewind is my best bet. Have looked into it and it’s really not all that complicated. A couple hours work to save hundreds of dollars on a new wheel seems like a good payoff to me. There’s 750g of 0.5mm copper wire in ...
by spektrolyte
Jun 14 2018 7:32pm
Forum: Motor Technology
Topic: Anyone have any tips on rewinding MXUS 3k?
Replies: 12
Views: 534

Anyone have any tips on rewinding MXUS 3k?

There are a couple of hub motors around here that have been run too hot and then left to stand resulting in blackening of the windings in one particular area. One is an MXUS 3k and another is a similar clone. Needless to say they don't work any more due to current leakage between the wires.. Is the ...
by spektrolyte
Jun 14 2018 7:19pm
Forum: E-Bike Build Threads / Photos & Video
Topic: A minimal Q76 offroad build
Replies: 27
Views: 1323

Re: A minimal Q76 offroad build

Someone has suggested a MAC 12T motor which has high torque and should give good speed at 84v.

Can anyone comment on how the power may compare to an MXUS 3K?
by spektrolyte
Jun 14 2018 6:24pm
Forum: Items for Sale - New
Topic: EU - MAC 12T motors in 24" rims
Replies: 17
Views: 2001

Re: EU - MAC 12T motors in 24" rims

Interested, how did they perform in the Nyx? I'm looking for a rear wheel for my Q76 that doesn't weigh 15kg+, I have an 84v battery and a Sabvoton 72150 (until my Adaptto gets fixed). I assume that they will fit in a Raptor with 155mm dropouts. Singlespeed or cassette version?
by spektrolyte
Jun 14 2018 12:04pm
Forum: E-Bike Build Threads / Photos & Video
Topic: A minimal Q76 offroad build
Replies: 27
Views: 1323

Re: A minimal Q76 offroad build

Thanks Tom, Something is definitely amiss then. It's got a Shinko trials tyre on a 19" Holmes rim so the weight is going to be about the same as yours, and the rear brake is Shimano Saint with XTR lever, a common mod that once used by downhill racers to get more power than any stock lever/caliper co...
by spektrolyte
Jun 13 2018 7:54pm
Forum: E-Bike Build Threads / Photos & Video
Topic: A minimal Q76 offroad build
Replies: 27
Views: 1323

Re: A minimal Q76 offroad build

No you don't understand. The back wheel weighs 19kg, Thats almost 50% of the bike and is causing problems with traction and manouvreability - the rear wheel has so much rotating mass that the brake can't lock the tyre making it very hard to ride offroad. Instead of rolling over things the back wheel...
by spektrolyte
Jun 08 2018 5:38am
Forum: E-Bike Build Threads / Photos & Video
Topic: A minimal Q76 offroad build
Replies: 27
Views: 1323

Re: A minimal Q76 offroad build

But the real reason I replied is to ask you about the Multistar. How does your pack deal w/ the high discharge rate. The multistars can dump insane amounts of amps, thats why people use them. I made very similar build on Q76 with exact same Multistar setup than you and Sabvoton 72150, Cycle analyst...
by spektrolyte
Jun 07 2018 10:14pm
Forum: E-Bike Build Threads / Photos & Video
Topic: A minimal Q76 offroad build
Replies: 27
Views: 1323

A minimal Q76 offroad build

https://s22.postimg.cc/p6bscptyp/ED6_F17_DE-_E25_D-475_B-990_A-_EDC7_CC95_E199.jpg Frame: Q76 Forks: Rockshox Boxxer RC Shock: Rockshox Vivid Brakes: Shimano Saint Cranks: Raceface Chester Bars & Stem: Raceface direct mount 35mm Rear wheel: 19" Holmes MMP rim & Shinko trials tyre Front wheel: 24" H...
by spektrolyte
Jun 05 2018 8:03pm
Forum: Items Wanted
Topic: Got a burnt out Cromotor? I need the hub body
Replies: 0
Views: 115

Got a burnt out Cromotor? I need the hub body

Looking for hub body for Cromotor v2 or 3 (the bit with the magnets) plus side covers if the bearings are still OK.

Thanks!
by spektrolyte
Jun 04 2018 9:05pm
Forum: Items for Sale - Used
Topic: Sold Qulbix Q76R EU new price
Replies: 30
Views: 2433

Re: Qulbix Q76R EU

Yeah I’m interested,

Have you made any modifications to the frame?
by spektrolyte
May 24 2018 6:28am
Forum: E-Bike Technical
Topic: Adaptto Mini-E/Max-E Owner's Thread
Replies: 4989
Views: 465869

Re: Adaptto Mini-E/Max-E Owner's Thread

Great, I was sold a lemon by the looks of it. Was told I was getting a stunning deal, got it home to find most of the parts pretty heavily worn, rust inside the frame and then the controller fails after one ride. Of course the seller wasn't interested in hearing about any of the problems, when I que...
by spektrolyte
May 24 2018 6:17am
Forum: E-Bike Technical
Topic: Adaptto Mini-E/Max-E Owner's Thread
Replies: 4989
Views: 465869

Re: Adaptto Mini-E/Max-E Owner's Thread

I'd say you have shorted phases... the reason why it blew the MOSFETS blew in the first place. I'd be checking your motor. Yeah I though that could have been a possibility too, but this happened halfway through a charge while the bike was stationary and the motor works fine with a Sabvoton. If the ...
by spektrolyte
May 21 2018 10:39am
Forum: E-Bike Technical
Topic: Adaptto Mini-E/Max-E Owner's Thread
Replies: 4989
Views: 465869

Re: Adaptto Mini-E/Max-E Owner's Thread

@Allex; through the contact form on your website www.envolt.se

Also sent a mail to the shop@adaptto.ru address via their website.
by spektrolyte
May 21 2018 9:49am
Forum: Items for Sale - New
Topic: FUTR frames, Adaptto Controllers, Eaton Chargers, batteries
Replies: 311
Views: 51606

Re: FUTR frames, Adaptto Controllers, Eaton Chargers, batteries

I am also having a real problem with my Adaptto Max-E,

It failed during the second charge and I have had zero response from anyone regards trying to get it fixed.