Recent content by greg_p

Sellers have a legal warranty of 1 year at least in France. Where did you get the motor from? Is it power-ebike? The 28amp controller make me thing it is the case. I have it since 1.5 years on a 8x8 rh205 that now is taking roughly 40 amp without problem, it's a real axle defect. I am really...

Why not using traditional motorbike-like fixture. It is working for big power since years, you can set this by yourself and it is rock solid. You set first right side to adjust chain tension, and then you go left side to manage wheel alignment.

Don't underrate the fork too much. If you take a suspended one, it has to be soft and must have to be correctly setup in order you to get full benefit. A too cheap one will have no hydraulic, just a spring and it will never be good. For normal dropout, you have basoc rockshox at 150-220$ that...

And with bms, they often ask for post payment ... it arrived me twice, the eason why I will not order them anymore...

I had something pretty close with mine, with almost 8.5 kg at the rear rack, bt pretty disturbing when road are not clean... £ I felt like running a motorbike with a passenger... I am on the move to split the battery and put it in bags on front carrier, very near the center of the wheel... Will...

I have sent some question to teklektik about this some days ago, he wrotes a the (un)official user guide you wrote. Actually you can base on the provided tables that are based on a max 3x power assist when going from 55rpm (x1) to 90rpm (3x). I asked him because where I live, I have some steep...

C rating indicated how many ampere you can pull out a battery. It"s a multiplicator or the capacity in Ah. Ex: a lipo (whatever s) of 8ah that has a C rating of 10 can be pulled out (10x8=)80 amperes. Check if the C rating is for continous or peak discharge.

If you can test and check the rear wheel weight but the website advertises 8.8kg for the system which is good, but I think we can do better figures for rear wheel setup... Bionx has 48V / 11.6 Ah and 500w rear wheel , 8.8kg and 2500$ the conversion kit. For roughly 2000$ you can have a eZee kit...

Just for my curiosity, which kind of multistar do you get to have 20s 32ah? you get 2//(2x6s+2x4s packs in serie)?

Not surprising. My wife has a bosch 250W assit bike, and running with her and my bike (that has a CA v2 power meter), I can tell the bosch motor push more than 500W uphill on turbo mode. So it's not surprising at all that a "commercial" assit system push more than advertized.

Waiting for the guru to answer, a good start would be infineon controller, torque sensor and Cycle analyst V3, I would say that it's the minimal for having pedal assist to work. A simple pedal assist system will not manage so much power; actually infineon controller send full power as soon as...

I am "upping" this interesting subject because I am going to put 2 36V lifepo4 batteries in série and am questioning about charging them as a pack of 72V. In all the written things here, nobody did take into account that this is the controller that will have to manage the flyback effect, and...

All, I am on the point to share my 20s lifepo4 battery into 2 12S batteries (I add 4 cells), each with BMS to balance it. my order to the cell supplier was with a 43.8V new charger as my current one cannot go under 50V. But I think I could spare to buy a new one by charging the 2 batteries in...

You may need to adjust Rshunt value to the controller, otherwise amp value will not be accurate.

A 10s battery must have a 10s bms in the appropriate chemistry...