Search found 117 matches

by hias9
Sep 22 2019 2:07pm
Forum: E-Bike General Discussion
Topic: Axle trying to leave Dropouts when Tightening
Replies: 14
Views: 459

Re: Axle trying to leave Dropouts when Tightening

I am trying to fix this. Where do you upload your pictures?
edit: It should be working now.
by hias9
Sep 22 2019 2:02pm
Forum: E-Bike General Discussion
Topic: Axle trying to leave Dropouts when Tightening
Replies: 14
Views: 459

Re: Axle trying to leave Dropouts when Tightening

I design them using a 2D CAD software and have them water cut out of 10mm stainless steel.
On the left side it´s fixed to the IS2000 brake mount. On the right I drilled a hole and cut a thread.

Here is a picture of the left side:
Image
by hias9
Sep 22 2019 9:29am
Forum: E-Bike General Discussion
Topic: Axle trying to leave Dropouts when Tightening
Replies: 14
Views: 459

Re: Axle trying to leave Dropouts when Tightening

For my fast bike I have 10mm thick stainless steel torque arms on both sides water cutted. No problem at all at 22S and 200/450A. This is just for a 2KW (14S, 40 battery amps) city bike, which I used to ride without TAs. (only TA washers) Motor was overheating when riding hills, so I went to a sligh...
by hias9
Sep 21 2019 10:34pm
Forum: E-Bike General Discussion
Topic: Axle trying to leave Dropouts when Tightening
Replies: 14
Views: 459

Re: Axle trying to leave Dropouts when Tightening

Yea, that‘s exactly what happened. And it also happened on my other bike, but at higher tightening torque and the axle did not move that much. Maybe it happened because I could not hold and tighten at the same time cause I have a broken arm at the moment. Instead I was putting my weight on the saddl...
by hias9
Sep 21 2019 9:39pm
Forum: E-Bike General Discussion
Topic: Axle trying to leave Dropouts when Tightening
Replies: 14
Views: 459

Axle trying to leave Dropouts when Tightening

I have installed a slightly bigger hub motor on my slower bike today. When tightening the M14 nuts, at about 30Nm of tightening torque, the axle begins to leave its position. So when reaching about 50Nm of tightening torque, the axle will still be inside the dropout, but has already moved by a few m...
by hias9
Aug 30 2019 2:15pm
Forum: Items for Sale - New
Topic: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD
Replies: 109
Views: 12964

Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Is it better to grind off the black coating from the motor where the hubsinks will sit or does it not make a difference?
by hias9
Aug 26 2019 10:03pm
Forum: E-Bike Technical
Topic: Alternative to Chinese Handlebar 3-way Switches
Replies: 7
Views: 350

Re: Alternative to Chinese Handlebar 3-way Switches

I am actually thinking about buying a 3D printer :D

Do you print them in ABS or PLA?
by hias9
Aug 26 2019 4:59pm
Forum: E-Bike Technical
Topic: Alternative to Chinese Handlebar 3-way Switches
Replies: 7
Views: 350

Re: Alternative to Chinese Handlebar 3-way Switches

Ideal would be two waterproof 3way mini toggle switches on a bicycle handle bar mount.
Any ideas how to make this?
by hias9
Aug 25 2019 10:05pm
Forum: E-Bike Technical
Topic: Alternative to Chinese Handlebar 3-way Switches
Replies: 7
Views: 350

Alternative to Chinese Handlebar 3-way Switches

I have these two 3-way switches on the handlebar. These Chinese switches work, but I don't like how they look on a bicycle. Are there any alternatives? They should be water-protected and mounted on the handlebar. Nice if they would require less space than those two. https://s17.directupload.net/imag...
by hias9
Aug 22 2019 10:53pm
Forum: Items for Sale - New
Topic: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD
Replies: 109
Views: 12964

Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Thanks. They also mention that 2 15mm rings would be more efficient than a single 30mm ring. On all pictures with dual rings, the fins were lined up in a straight line. Wouldn't it be more efficient to line them up like this or would that be worse? https://s18.directupload.net/images/190823/temp/2fn...
by hias9
Aug 20 2019 5:57pm
Forum: Items for Sale - New
Topic: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD
Replies: 109
Views: 12964

Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Did anyone compare cooling performance of dual row hubsinks to single row hubsinks on motors like mxus 3k and qs205?
It would be nice to know if there is a significant boost in cooling performance.
by hias9
Apr 18 2019 5:57pm
Forum: E-Bike Technical
Topic: TO-220 FETs (De)Soldering Technique
Replies: 3
Views: 206

TO-220 FETs (De)Soldering Technique

I plan to upgrade the FETs of a KT controller. I did some tests trying to desolder the TO-220 FETs of a broken controller both with the soldering iron and the heatgun and I prefer the soldering iron at the moment. However I need high temperatures for both ways. The FETs I am desoldering don't need t...
by hias9
Apr 16 2019 12:04pm
Forum: E-Bike General Discussion
Topic: MXUS 3000 caliper clearance
Replies: 24
Views: 2735

Re: MXUS 3000 caliper clearance

The IS2000 to PM 8‘‘ adapter made by Formula is 10.7mm thick and fits.
The same adapter made by Shimano is slightly thicker (10.9mm) and also fits.
by hias9
Apr 12 2019 1:10pm
Forum: E-Bike General Discussion
Topic: MXUS 3000 caliper clearance
Replies: 24
Views: 2735

Re: MXUS 3000 caliper clearance

Today I have modified a mechanical disc brake rotor with the angle grinder. Now it fits also without the disc spacers. I have enough clearance for any disc size, but I plan to go for a 203mm disc. Where the adapter would sit, I have about 12mm space between the frame and the disc and dont want do ad...
by hias9
Apr 09 2019 9:27pm
Forum: E-Bike General Discussion
Topic: Looking for robust 24'' rim
Replies: 57
Views: 2762

Re: Looking for robust 24'' rim

Are there any tools to measure spoke tension for the short spokes used on big hub motors?
Is anybody using such tools?
by hias9
Apr 02 2019 9:59am
Forum: E-Bike General Discussion
Topic: MXUS 3000 caliper clearance
Replies: 24
Views: 2735

Re: MXUS 3000 caliper clearance

Earlier in this thread was written that mechanical brakes have 2mm clearance. But I am not aware of any mechanical brakes with such a clearance.
by hias9
Apr 02 2019 8:18am
Forum: E-Bike General Discussion
Topic: Looking for robust 24'' rim
Replies: 57
Views: 2762

Re: Looking for robust 24'' rim

Thanks. I finally had time to watch it yesterday. In this video they lace it alternating.
by hias9
Apr 02 2019 7:41am
Forum: E-Bike General Discussion
Topic: MXUS 3000 caliper clearance
Replies: 24
Views: 2735

Re: MXUS 3000 caliper clearance

In this case it is not possible because a bigger rotor would have contact with the frame. And I don't want to add washers because I don't want to spread it further. I think the only hydraulic brake that has enough clearance is the Magura Gustav M. Are there any mechanical brakes that have enough cle...
by hias9
Apr 01 2019 8:24pm
Forum: E-Bike General Discussion
Topic: MXUS 3000 caliper clearance
Replies: 24
Views: 2735

Re: MXUS 3000 caliper clearance

Are there any mechanical disc brakes which have enough clearance even without spacers?
by hias9
Mar 26 2019 7:44pm
Forum: E-Bike General Discussion
Topic: Looking for robust 24'' rim
Replies: 57
Views: 2762

Re: Looking for robust 24'' rim

I just tried to find that video on YouTube. Do you have the link to that video?
by hias9
Mar 26 2019 6:47pm
Forum: E-Bike General Discussion
Topic: Looking for robust 24'' rim
Replies: 57
Views: 2762

Re: Looking for robust 24'' rim

So the way to go for a mxus 3k size hubmotor with centered flange in a 24'' rim is to lace it with all elbows out, correct?
by hias9
Mar 26 2019 10:23am
Forum: E-Bike General Discussion
Topic: Looking for robust 24'' rim
Replies: 57
Views: 2762

Re: Looking for robust 24'' rim

I will try Maxxis Minion DHF 24x2.4 DH.

When lacing a motor with centered flange, what exactly speaks against lacing alternating elbows in and out?
by hias9
Mar 18 2019 9:59pm
Forum: E-Bike General Discussion
Topic: Looking for robust 24'' rim
Replies: 57
Views: 2762

Re: Looking for robust 24'' rim

What about tires for offroad? Maybe Minion or Holyroller?
by hias9
Mar 18 2019 7:02pm
Forum: E-Bike General Discussion
Topic: Looking for robust 24'' rim
Replies: 57
Views: 2762

Re: Looking for robust 24'' rim

I already trimmed them, but I think that will make cornering grip worse. I did not find a comparable 24x2.5-2.8 tire so far.
by hias9
Mar 18 2019 10:13am
Forum: E-Bike General Discussion
Topic: Looking for robust 24'' rim
Replies: 57
Views: 2762

Re: Looking for robust 24'' rim

My motor had 4mm spoke holes and I was not happy also with using 2 washers, so I drilled 2.7mm holes (very tight, maybe 2.8mm would be better) for 13ga spokes. Lacing with elbow in on the left and elbow out on the right gave the right amount of dishing that I needed for this motor. Unfortunately the...