Search found 1085 matches

by ebike11
Jul 19 2019 7:21pm
Forum: E-Bike Technical
Topic: Would you be able to tell the winding rating?
Replies: 9
Views: 169

Re: Would you be able to tell the winding rating?

I read the less copper the lower the TURN count...maybe i can find other qs205 gut pics to compare to in order to get an estimate That's not the case for how most motors are designed. A different turn count is typically the same copper fill, but with more strands of a thinner wire, or less strands ...
by ebike11
Jul 19 2019 5:05pm
Forum: E-Bike Technical
Topic: Would you be able to tell the winding rating?
Replies: 9
Views: 169

Re: Would you be able to tell the winding rating?

The easiest thing to do would be to spin it up and measure the RPM, turn that figure into kV, and compare with what's listed as their kV per winding. A $10 ebay digital laser tachometer does the job here. I read the less copper the lower the TURN count...maybe i can find other qs205 gut pics to com...
by ebike11
Jul 19 2019 1:10pm
Forum: E-Bike Technical
Topic: Would you be able to tell the winding rating?
Replies: 9
Views: 169

Re: Would you be able to tell the winding rating?

"Winding rating" will be taken to mean max temperature. Are you using a translator? I'm not sure how the winding count works on that motor since each winding occupies multiple stator slots. But someone else could tell you how to count them and find out the winding count. Ah sorry i didnt know the e...
by ebike11
Jul 19 2019 12:45pm
Forum: E-Bike Technical
Topic: Would you be able to tell the winding rating?
Replies: 9
Views: 169

Re: Would you be able to tell the winding rating?

QS motor says don't exceed 120C indicated by an internal probe. A rule of thumb for "how good is x" is that in a commercial product, "x" won't be any better than it needs to be, and often is worse than it should be. I see. Is there any noticable way to know if its a 3T 4T 5T etc...? I dont know all...
by ebike11
Jul 19 2019 12:11pm
Forum: E-Bike Technical
Topic: Would you be able to tell the winding rating?
Replies: 9
Views: 169

Would you be able to tell the winding rating?

Hi guys
Would anyone have a fairly good idea of the winding of this qs205 motor? I dont see any stamping/markings

https://ibb.co/JvmXCmG
https://ibb.co/L9tSz7V
https://ibb.co/Sykf46z
https://ibb.co/nn33FnF
https://ibb.co/sWYH8rk
by ebike11
Jul 16 2019 3:40pm
Forum: E-Bike General Discussion
Topic: To QS205 owners out there..
Replies: 9
Views: 281

Re: To QS205 owners out there..

flat tire wrote:
Jul 16 2019 12:28pm
I would only recommend bikes or bike frames that are factory made for a hub motor. Unfortunately many of these are questionable looking like the EEB. But you can search for "electric bike frame" or "ebike frame kit" and see what's out there.
Sorry..whats is EEB?
by ebike11
Jul 16 2019 7:12am
Forum: E-Bike General Discussion
Topic: To QS205 owners out there..
Replies: 9
Views: 281

Re: To QS205 owners out there..

MadRhino wrote:
Jul 15 2019 8:41pm
Doesn’t need washers if your dropouts and clearances are good. The torque arm is useless, for it is not a tight fit with the axle. Best are clamping open dropouts, or through axle bolt on torque plates.
Are there any stock framed bikes that you would recommend to use with a qs205?
by ebike11
Jul 15 2019 10:17pm
Forum: Items Wanted
Topic: Steel frame or swingarm with thick dropouts
Replies: 0
Views: 148

Steel frame or swingarm with thick dropouts

Just looking around to see whats available
Considering one for my new hub
Thanks!
by ebike11
Jul 15 2019 9:43pm
Forum: E-Bike General Discussion
Topic: To QS205 owners out there..
Replies: 9
Views: 281

Re: To QS205 owners out there..

Long story short you need dropouts engineered for a 30lb hub motor if you want to safely run a 30lb hub motor. As the Rhino says torque arms are not a solution. For my QS205 / QS273 I built my own swingarm out of steel with 1/2" thick stock for the dropouts. Id love to find a custom steel swingarm ...
by ebike11
Jul 15 2019 9:42pm
Forum: E-Bike General Discussion
Topic: To QS205 owners out there..
Replies: 9
Views: 281

Re: To QS205 owners out there..

Doesn’t need washers if your dropouts and clearances are good. The torque arm is useless, for it is not a tight fit with the axle. Best are clamping open dropouts, or through axle bolt on torque plates. I see what u mean. I did use M16 torque arms with the MXUS though. I still have them. The arms f...
by ebike11
Jul 15 2019 12:19am
Forum: E-Bike General Discussion
Topic: To QS205 owners out there..
Replies: 9
Views: 281

To QS205 owners out there..

Hi I finally made my qs205 prurchase :D . Im quite excited to get things installed but I have a question if you dont mind. No washers came with the motor. Just a regular and half sized tightening nut along with a torque arm. Am I supposed to put some sort of washer where the red arrows are in the pi...
by ebike11
Jul 14 2019 5:45am
Forum: E-Bike General Discussion
Topic: Stubborn freewheel
Replies: 13
Views: 203

Re: Stubborn freewheel

Ah i did apply some thick chain lube before installing over the threads. I dont know why its on so tight. Its not that old or anything. Could it be chain force tightening things as time goes by? It's a large, shallow thread that gets a couple hundred ft/lbs of torque applied daily. They tend to be ...
by ebike11
Jul 14 2019 5:43am
Forum: E-Bike General Discussion
Topic: Big bucks for a brake rotor?
Replies: 28
Views: 728

Re: Big bucks for a brake rotor?

Well, some expansive rotors have a real advantage. Some Shimano and Magura do last very long. I like the Hope vented rotor for its light weight and the special sound it makes. If they start making ceramic rotors for bikes, sure they will be expansive, but knowing the performance improvement they wi...
by ebike11
Jul 13 2019 11:08pm
Forum: E-Bike General Discussion
Topic: Stubborn freewheel
Replies: 13
Views: 203

Re: Stubborn freewheel

If you do manage to remove it..... Lesson to be learnt,, make sure you always apply grease to the threads on the motor and freewheel before Re-installing. Another tip.. Try heating up the general area with a blow torch before attempting removal. This is what a car mechanic would do with a stubborn ...
by ebike11
Jul 13 2019 11:03pm
Forum: E-Bike General Discussion
Topic: MTB with hardtail question
Replies: 27
Views: 483

Re: MTB with hardtail question

2old wrote:
Jul 13 2019 4:29pm
Looks like those frames (except the one on the far right which appears to be steel) are hydro-formed which means aluminum to me since I haven't seen steel treated in that manner yet.
Ill have to email again and verify it
by ebike11
Jul 13 2019 1:05pm
Forum: E-Bike General Discussion
Topic: Stubborn freewheel
Replies: 13
Views: 203

Re: Stubborn freewheel

That style is the worst in terms of contact area. The best way to get them off is to put the tool in a vice, then use your weight to seat it and the wheel as leverage to turn it (think of throwing your belly over the steering wheel of a bus and driving) Keep your weight over it and maintain constan...
by ebike11
Jul 13 2019 11:51am
Forum: E-Bike General Discussion
Topic: Stubborn freewheel
Replies: 13
Views: 203

Stubborn freewheel

Hi guys Would anyone have some endless sphere tips on how to remove a single freewheel? its on my mxus 3000. The freewheel has very low miles on it so i was wanting to reuse it since i paid $50 for it. Its a Shimano MX30 I have the park tool, with the 4 notches, but wont come off with an adjustable ...
by ebike11
Jul 13 2019 9:51am
Forum: E-Bike General Discussion
Topic: MTB with hardtail question
Replies: 27
Views: 483

Re: MTB with hardtail question

What do you think of this steel frame to experiment on? really cheap but if you swapped brand componants onto it then it might be ok https://www.aliexpress.com/item/32849381771.html?spm=2114.search0104.3.44.1de8105fP6o8od&ws_ab_test=searchweb0_0%2Csearchweb201602_1_10065_10068_319_10059_10884_317_1...
by ebike11
Jul 13 2019 6:11am
Forum: E-Bike General Discussion
Topic: MTB with hardtail question
Replies: 27
Views: 483

Re: MTB with hardtail question

What do you think of this steel frame to experiment on? really cheap but if you swapped brand componants onto it then it might be ok https://www.aliexpress.com/item/32849381771.html?spm=2114.search0104.3.44.1de8105fP6o8od&ws_ab_test=searchweb0_0%2Csearchweb201602_1_10065_10068_319_10059_10884_317_10...
by ebike11
Jul 12 2019 2:30pm
Forum: E-Bike General Discussion
Topic: MTB with hardtail question
Replies: 27
Views: 483

Re: MTB with hardtail question

Ill look for a steel frame.
Im assuming all rear dropouts have the same inner width on standard factory 26inch MTBs??
If so then maybe i can cold stretch the steel a bit. Not sure if thats the right expression
by ebike11
Jul 12 2019 11:07am
Forum: E-Bike General Discussion
Topic: Big bucks for a brake rotor?
Replies: 28
Views: 728

Re: Big bucks for a brake rotor?

Are you using regen too? I put on cheap floating discs, 203 in front and 180 rear. I tested on a 17%-19% hill by my house, 3/4 mile descent, then less steep after that, only using front brakes and regen. Rotor was warm but not hot. I ride on a lot of hills, but don’t think I’ll really have situatio...
by ebike11
Jul 12 2019 8:55am
Forum: E-Bike General Discussion
Topic: Big bucks for a brake rotor?
Replies: 28
Views: 728

Re: Big bucks for a brake rotor?

Is it worth paying 60 to 80 dollars for a 203mm Shimano? Or would the 15 to 20 dollar ones be as good? Im not trying to compromise safety to save money but im wondering if there is a huge performance advantage to justify the price or are you just paying for the name? Looking to get some 203mm rotor...
by ebike11
Jul 11 2019 11:43pm
Forum: E-Bike General Discussion
Topic: Big bucks for a brake rotor?
Replies: 28
Views: 728

Re: Big bucks for a brake rotor?

what's the $80 shimano? icetech freeza? those things have heatsinks for better heat dissipation but if you're comparing plain shimano rotors like RT66 they're drilled out too much to save weight. i prefer these https://www.aliexpress.com/item/32540715682.html https://i.imgur.com/PsNVopc.png Thanks ...
by ebike11
Jul 11 2019 9:34pm
Forum: E-Bike General Discussion
Topic: Big bucks for a brake rotor?
Replies: 28
Views: 728

Big bucks for a brake rotor?

Is it worth paying 60 to 80 dollars for a 203mm Shimano? Or would the 15 to 20 dollar ones be as good? Im not trying to compromise safety to save money but im wondering if there is a huge performance advantage to justify the price or are you just paying for the name? Looking to get some 203mm rotors...
by ebike11
Jul 11 2019 7:48am
Forum: E-Bike General Discussion
Topic: MTB with hardtail question
Replies: 27
Views: 483

Re: MTB with hardtail question

You don't want a hardtail ebike. They suck hard unless you ride 10 mph. I ride a hard tail, often on not so smooth roads. Not a big problem, unless you have a back pain or other type of injuries. Seat post suspension like those from Zoom, Suntour or Thudbuster would also help tremendously. Yes i al...