Recent content by Pedrohlt

Yes, it sounds like chain drive is the way to go for off-road use. I prefer belt drives, but I think it will limit my use. Thanks everybody for the help! I think I'm gonna use #25 chain and 6.3:1 ratio. I'll post some pics of my board when it's complete.

Yes, that was my first tought, but I searched here on ES and there is a lot of belt driven MTBs. I wonder if they're having problems with dirt, rocks etc.

So I'm building a dual drive E-MTB and I'm not sure if I use chain/sprokets or belt/pulley for drive. Here are some of the pros that I could think of each one: BELT: - Quieter - Smoother - Less prone to fall off - Less maintenance ? - Lighter ? - Less sensitive to misalignment CHAIN: -...

My two sensored 5065 motors arrived last week. Didn't test it yet, but it looks really nice. I notice that it's much harder to turn it by hand than my other 5065 motor (from hobbyking). You can really feel the magnets when turning it, I don't know if it has stronger magnets or smaller airgap...

Thanks for your reply. Yes, a MTB would draw much more power than a regular longboard. But my idea it to limit the motor current at 60A, so it would run at about 1300W on each motor. My concern is how to limit the current on those FVT ESCs and if a 5065 can handle 1300W of continuous.

I'm thinking about making a E-MTB with: -2x 5065 270kV sensored motors (https://goo.gl/G0ZmFk) -2x FVT 80A 6S sensored ESC (https://goo.gl/PSk2oW) -3x 6S 5000mAh LiPO for 22.2v 15Ah -Gearing for 25mph My idea is to run at about 1200W max on each motor, to avoid overheating. With the 80A...

Try http://www.uumotor.com. They have hub motors from 4" to 16", many different models. They even have hub motors for e-skateboards.

Does anybody know how to program the Hobbyking X-Car Beast 120A esc without the programming card? There is nothing on the manual and I searched but didn't find much info about this ESC. I d like to change some settings like braking, cutoff and timing.

Yes, I said that to him, but he wants to use the original controller.

Hi everyone, A friend of mine has a 250W ebike that cuts power everytime it reaches 25km/h and when it gets to ~21km/h it accelerates again to 25km/h. It's kind of a speed limit and to save battery I think. This ebike doesn't have throttle, it's just PAS controlled. He sent me its controller...

I'm using two kollmorgen 400W on my E-Mountainboard. I'm running on a 52.8v 12Ah LiFePO4 pack and using two 12fet leyn controllers. The great thing about these motors is the price, I paid about 20 usd on each as I bought it stated as deffective, but as most of the times, only the internal...

Hello everyone, last year I bought a 24fet 4115 controller from em3ev.com. I received it, installed and then tested. It had so much power that was hard to maintain the front wheel on the ground! The next day I was riding and sudenly it stoped. When I got home I opened and saw that the r115 power...

I have bought directly from Headway (http://portuguese.alibaba.com/supplier_headway-cn_50080629) three times. First I bought 24x 38140 cells, a 24S bms and charger. No problem. Then two cells smoked (shorted on the balance cables, my fault), so I bought 3 more cells. The last time I bought 41...

I think you're all forgetting about headways. you can get them at 1.3usd per Ah from the factory. So for a 12S1P of 38120's you get 39,6 10Ah nominal and able to 10C discharges and 5c charges rates witch is good for most people. Just to compare: 12S1P of 38120's : 39,6v 10Ah - 396Wh - 3.96Kg...

I think Nad is the real name of the guy, not the nick.