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I came across this vid from the RC world about using this CorrrosionX goop to protect electronics from moisture. I am sure we can use the same stuff for our ebike components. Both CorrosionX and ACF50 are used in aviation, from what I read.

Sorry for the late reply as I have not visited this forum in quite a while. The Thun sensor outputs the sensed torque as a 0.5VDC to 4.5VDC signal. 2.5V is the zero-torque level and the other voltage extreme correspond to the max positive and negative torque sensed. In addition, it outputs...

Getting a bottom bracket with a longer spindle will give you additional clearance. But it will also move the chainring outwards which might affect your chain line. Usually a few millimetres won't matter. However, it looks like the additional clearance you need might be more than just a few...

Interesting... They have changed the design considerably from when I bought mine last year. The circuit board is completely different. And even the motor casing is different. Richard

It can be done. But here are some considerations that immediately come to mind... Are you planning to ditch the rear Brompton hub and replace it with a 36h hub? Otherwise, lacing a 28h hub into a 36h rim seems a lot more trouble than it is worth. Also, the 355 tyres that you will have to buy...

I think they probably upgraded the electronics and now have put a sine-wave controller in the hub. My guess is that the brake cutout circuit basically sets the assist level to zero so that the motor stops instantly. In answer to your question about throttle vs the original Assist-level LED...

To be clear that we are talking about the same motor, this is the one I have: http://www.keyde.com/?do=product&lang=en&event=view&ids=13 Here is a picture of the bits that go with the motor... I bought the motor almost a year ago and it's possible they have changed the electronics since...

I think the chime applies to all motors with the integrated in-hub controller. Not 100% sure, though. Yes, even with the throttle mod, I still have to pedal for the motor to run. That logic is built-into the hub controller. Richard

Yes, that was a problem for me too. The hole on my Park Tool cassette locking tool was too small to allow the motor shaft and cable to go through. A bike store suggested drilling out the hole on the lockring tool but I didn't have the ability to do this. I ended up using needle-nose pliers to...

Hi Jerry. I will stick with the Keyde motor for now as it is so much more stealthy visually. Pretty important here in Hong Kong where ebikes are not legal and the fun police do their occasional crackdown on ebikes. Too bad it is not as stealthy audibly. Another plus is that the Keyde has the...

Hi d8veh. The CA has four throttle modes -- pass-through, speed throttle, current throttle and power throttle. The CA works with a speed controller (like the KU63 and pretty much the majority of controllers) where the throttle signal controls the speed. It essentially 'converts' a speed...

No bother at all! The cruise control function on the CA, when turned on, is an auto-cruise. it comes on when you hold the throttle steady for a certain period of time after which time you can release the throttle and the CA will hold the setting for you. You can specify that time period in the...

It could certainly be smaller. There are two circuit boards within the CA - the microcontroller board and the LCD display. The microcontroller board is fairly small. It's the LCD display that is large and that what the case is built around. But I think the LCD is larger than necessary. A smaller...

<Continued from Previous Post> Brompton - Cycle Analyst & Thun Torque Sensor Installation (Part 2) Thun Torque Sensor The Thun bottom bracket torque sensor was purchased with the Cycle Analyst V3 unit as a package. I chose the 120L/119.0mm model to match the 119mm spindle length on the...

Brompton - Cycle Analyst & Thun Torque Sensor Installation (Part 1) I installed a Freedom Ebikes kit on my white Brompton in mid-2012. The original Tongxin motor worked well and I had no problems with it. At some point, I replaced the original controller with a KU63 from BMSBattery.com and that...

Thanks Pat.

Do you have a link to the Taiwanese product?

I don't know if the Q85 manufacturer keeps their hub dimensions the same over time. But I know that Keyde doesn't. The first front hub motor I ordered last summer for my Brompton had a 90mm PCD. I ordered another one six months later and had spokes cut assuming that the hub would be identical to...

Good find! I just ordered 4 pieces for USD28. Free shipping to Hong Kong too! Richard