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Have mine derestricted for over 1000 miles now with no probs whatsoever. I never allow the flow app to connect to the bike at all just out of paranoia of something being detected by the Bosch software. Make sure you adjust the dynamic of the race mode to +4 before doing the derestriction...

Yeah don’t claim any are perfect but I think if not abused and fitted properly with di electric grease etc then water ingress is kept to a minimum atleast. Everyone is quick to assume the bike has detected the chip in place etc due to the usual reported error codes when in reality the bike is...

There’s loads available as 3rd party. Yet not too frequent posts across the web about failure’s considering how many people probably run the chips. In my local club in the Uk everyone seems to run either the Peartune 4.0 mso for Bosch smart or the speedbox. We are out as a club every Sunday...

Mega’s solution as journaled on this thread works nicely and very inexpensive for a hobbyist to build themselves. When adapted it also works just fine in my disc magnet setup. I do worry however about the inaccuracy of trip distance recorded with the solution especially if you want to have the...

Solution on here is very undetectable within the system. Majority of other chip providers also link in on the kiox display line. Maybe that’s why they become detected and throw up errors. Or very simply majority of the 3rd party chip suppliers are using sub standard parts onside there fancy...

I can’t bypass the ardruino in the setup I’m trying achieve. I’m trying with original Bosch in frame ( lower stay ) speed sensor and disc magnet. I don’t have the rim magnet on my bike so I’m trying a different setup just a basic version I guess of what all the 3rd party chips pretty much do.

You mean this post “”Hi and congratulations. I was wondering if it is possible to program Arduino in a way that it sends the real frequency that it receives down to 0.4 sec between pulses and keep sending a signal to electromagnet every 0.4 sec if the real value is less than that.”” Guess only...

& not to be thick but if powering from the LPP port does this mean we are able to turn device on / off via the light button on the smart system ? Thx again

Thx for response mega . When you refer to the electromagnet up against the speed sensor in my setup do you infact mean the reed switch ? I thought the electromagnet on your design ( located back of motor housing ) where you have the rim magnet type setup was there to introduce a magnetic field...

Curiosity in your new code where you changed the system to start working at a preset of 6kph I think you had mentioned. Why would you not set this preset to say 20kph before the multiplier effect kicks in so you get the most true to original power curves in all the different ride modes. Maybe...

So this is where my confusion was early in the conversation . Why would I need an electromagnet if I already have either a current speed sensor ( factory fitted in frame ) or alternatively as you’ve said relocate my current in frame speed sensor with the reed switch taking its place at the wheel...

I of course worry about limp mode etc. my bike is only 2 months old and has the Bosch race motor so I’m a little concerned of messing things up. But if I don’t try I won’t know. 16mph cut in the Uk is awful especially when your riding to and from the trails on fire roads or country lanes etc...

I will take apart stuff over weekend as will have more time. A little anxious of cutting the speed sensor cable to be honest though. Is there not a cable I could pre purchase that would fit into the speed cable ( once it’s plug is removed from the motor ) sort of creating a link wire of sorts ...

Again excuse the ignorance but looking at how the third party devices function utilising existing speed sensors already fitted in frames the pcb board they are using most also be manipulating the speedsensor with some sort of code again utilising a multiplier of sorts. I get they have more...

Thx for your response sander. Excuse my lack of knowledge but where would I be placing the electromagnet on my system ? In terms of winding my own would it still be to the same spec as you guys constructed with the gauge of wire and length around the 25mm pvc X amount of times ??? Or as I’m...

Yes I was thinking off modifying simply the coil you refer to as already being there but wouldn’t know where to start. I realise there are other solutions on the market but two other riders whom I ride with that also have the Bosch smart system have had the usual motor issues then have to mess...

I’ve been following this post with interest but unfortunately I’m only part competent at DIY lol. I can use a soldering iron however , buy parts on the internet and program a little board if it’s as straight forward as playing with a rasp PI for example. I’m just going to ask on the off chance...