harmonist said:
What would recommend, would something like the powervelocity 24fet be a good choice? Albeit a tad expensive.
Sorry for hijacking your thread, but people asked...
I helped develop the PV controller product line. They are based on a reasonably good programmable sinusoidal MCU's that arrive in the USA without mosfets or caps. PowerVelocity, then populates them with best of breed parts before he sells them. You are not getting just some Chinese controller, You are getting best of the best mosfets there are. We spent a lot of time trying out differnt mosfets to find the ones that really deliver the best power and reliablility. You'd be surprised how many mosfet models we vetted over the last couple of years. These controllers cost what they cost for really good reasons. IF you bought the original ones made 100% in China, they would be probably $100-120 less and probably about as good as a knock-off Sabvoton. No PV controller is currently FOC capable, but they are pretty darn good sinusoidal controllers with lots of advanced features.
You are not just getting an upgraded motor controller. You are getting a module that I helped develop. It includes an IOS or android app so you can program the controller on your phone. It also includes a nice dashboard and a GPS app. That extra cost is getting you what I think is one of the best EV tools there is. Think of a CA, but much much better and does loads more.
Here's a few pics of the app. It and the module cost you a mere $100, but it destroys the CA and anything else like them on the market. If you have a CA connector, you can still use the module with any controller, just not program it. This is the current app. PV and I do constant development on the software for better functionality and new features. There's new features being added all the time. I'd say every 2 weeks or so a new version comes out that has new stuff in it.
This is a prototype telemetry module next to a final product like you would get with a PV controller. It runs on an atmel 328 CPU and includes it's own 150v max power supply, BT module and the ability to monitor anything on an EV. You can see only some of the solder connections have connectors, that's because there's so much on this tiny board that will get developed in the future and the hardware is in place now. I know what most of those things are, but I'm keeping that to myself for now. It would take quite a lot to talk about it all. The connectors cover the "stuff" 99% of people will use. This covers 2 temperature inputs, full CA functionality, throttle in and throttle out, variable regen and a controller programming port. The module is fully updatable with new firmware as new features are developed.
The 24 fet controller depending on if you get the 100v or 150v version uses top teir mosfets in those voltages. There is no chance of fakes either since they are bought from Digikey or Arrow. Here's some pics of the PV 24 fet. 17,000uf of power buss filtering, IRF4115 mosfets (150v version). Loads of copper reinforcing on all the major power traces. These are solid controllers and cost what they cost for good reasons.
This is how every PV controller comes into the USA and then gets populated with top grade components here. You are not getting just some Chinese controller!
I literally feel like a peasant, taking the bus, sitting on the train without my e-bike, actually walking around, what is walking anyways, used to fake pedaling and twisting the throttle.
that shoulder bolt that broke doesn't look to impressive or strong,I hope the new ones do the job,I have just got bolts in mine that are partly threaded and I also had some bronze bushings machined up to take away the play with the shock mount hole being to big. How you getting on drilling out that rubber bushing from the frame? That's a bit of a task I know!
there should be a thin metal sleeve around the rubber that will come out to? I split it with an old screwdriver and just tapped it out. Then you should have a nice fit for the bearings to go in with a bit of luck,I put some locktite around mine just to be sure. Ive got the 19inch pirelli scorpions on mine and theres plenty of clearance width wise in the swinging arm. 
