Has anyone come across a frame similar to the Kenevo SL to suit the light weight motors like the M820/HPR50 etc?
My pedal enduro bike (170mm/170mm) is getting so little attention these days that I'd considered selling it. But if I could transfer the majority of components to a new motored...
Hi Frank,
Good to hear your build went well.
When traveling slow, the pulse is 1:1 as you found. Then over the next five wheel revolutions the pulse duration will gradually increase each time as dictated by the multiplier value. However you should not see anything like 1200ms.
It's really the...
The relationship between cadence and rpm really only becomes an issue at slower speeds, being the main reason the megabobra drops back to 1:1 reporting at this point. Reasoning is, for a given rpm, there's only so slow you could realistically be traveling with typical gear ratios. eg If you're...
I just don't need assistance over 35kph, and to reduce unnecessary risk of detection. When you start pushing such high levels of assistance, the current draw from the battery will be significantly higher than what's 'typical', whereby I'd expect Bosch has accumulated SIGNIFICANT data around...
Niiice 2000km, well ahead of me!
Yep, it's the Purion 200. Nice change from the LED remote. Sure, it's super bulky, but only a little larger than the LED, so it was already wasted space. PS don't believe the requirement that you need to take the bike to a dealer to setup the new display - you...
Taking inspiration from Bosch, it'll just be a magnet on the rim with a sensor inside the motor area. Sound familiar? :)
Yes sure, the screen would be optional. My plan is just to attach the female socket to the device, allowing users to decide if they want the screen or not. Could even add the...
Gotcha thanks. Those are reed switches, rather than hall effect sensors. Both detect a passing magnet, but the reed switches do so physically and are susceptible to vibration, and can be a bit particular with orientation. Orientation issues are addressed in the one you linked by the screw mount...
Hi Alumi,
It's something I've thought about a lot. Yes, I'm happy to send an upgraded coil at no cost to anyone with v1 who's experiencing trouble like you faced. It would just be a plug-in replacement.
As for the wheel pickup sensor, this will be trickier - at best, a hall sensor needs an...
Little update on the display. Just about happy with the all the functions now. All the typical screens, current speed, max speed, distance (all true values of course), as well as total climb/descent. Additionally, there's a menu for the controls of the megabobra itself; setting the desired...
Yes I have unit fitted in my Voima. Certainly, if you're able to move away from the rim magnet everything becomes easier for derestriction. I understand you're given the option of rim or rotor magnet with the Voima now, but sadly the earlier versions had rim magnet only.
I assume dealers can...
New coil in the works. Old version on the left, new version on the right. This will be small enough to be fixed directly to the motor, regardless of how close it is to the frame, as it sits within the bounds of the motor case's footprint. Similar to the OLED display, I'll print a small case for...
Interesting, I never encountered that one.
Are you running your magnet at 12v? Even if so, that'd only be pulling ~ 12v/23ohm = 0.52amp; I thought the LPP was good for 1amp?
Preview of one of the new pieces I'm working on. The OLED display and buttons will show the true speed, true distance, reported speed etc, as well as providing the user options to set their own multiplier, change units, wheel circumference etc. It'll be set in a 3Dprinted case to suit either...