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  1. Kepler

    Kepler Friction drive comes of age.

    I thought I would post an update on my latest friction drive design. Although the previous design made from 304 stainless has been very successful, there were elements to the design that I wanted to improve on. Firstly, I wanted to see if I could come up with a 3D printed design that would be...
  2. Kepler

    Kepler Bottom Bracket Friction Drive For Sale (Finally)

    Got your PM and thanks for the link to the article. Yes I have a limited number of brackets still in stock.
  3. Kepler

    Dengfu M09 Endruo/Freeride build log

    I got mine from here. https://www.cyclingdeal.com.au/buy/dnm-burner-rcp-2s-dh-mountain-bike-rear-shock-550l/SK-DNM-P2?gclid=CjwKCAjwzMeFBhBwEiwAzwS8zMJKWcqsXuNSzfdXHRL0QFSH8hwxwlq6_FXYogD29Or6-wvbP83RWBoCvH8QAvD_BwE 210x61mm 550lbs fits fine and works well. Plenty in stock
  4. Kepler

    Full suspension mountain bike Friction Drive

    A quick update on the Stumpjumper conversion. Firstly a couple of upgrades to the bike. New rear shock. Fox DPX2 replacing the stock unit. Also replaced the stock Sram NX derailleur with the new ASX12 speed electronic derailleur. j0FVsFWmcZA Such a nice shifter with the added bonus of...
  5. Kepler

    My RC Mid Drive with Single Stage Reduction

    Don't knock it before you try it. Light weight low power eMTB's are the future. Not the perfect solution but its all about compromises that you can live with. :)
  6. Kepler

    Wayne’s Dengfu Carbon Fibre FS 27.5” with Bafang M600 (throttle also)

    Hi Wayne. I have been playing around with Vesc's for so long, I forget there is a learning curve with how to set them up. Vesc's are designed as a skateboard controller and as such the throttle input is typically done using a receiver coupled to a wireless handheld throttle. The input is a...
  7. Kepler

    Wayne’s Dengfu Carbon Fibre FS 27.5” with Bafang M600 (throttle also)

    I buy from Flipsky. Very good service and quality Vesc builds. I use the the mini all the time for my friction drive builds. https://flipsky.net/collections/electronic-products/products/mini-fsesc4-20-50a-base-on-vesc-widely-used-in-eskateboard-escooter-ebike Also highly recommend you get...
  8. Kepler

    Wayne’s Dengfu Carbon Fibre FS 27.5” with Bafang M600 (throttle also)

    I think if I had a controller failure and there was no option for a new controller, I would just install a Vesc controller. Would need to run it sensorless but the Vesc works quite well sensorless. Also would need to make it throttle only. The Vesc would even fit in the motor cavity. Another...
  9. Kepler

    Wayne’s Dengfu Carbon Fibre FS 27.5” with Bafang M600 (throttle also)

    Interesting, I will keep an eye on that. Today I was in assist mode 1 and had been for the last 10km. I hadn't made made any changes and then the assist just suddenly stopped. to be honest, getting the bike home under pedal power wasn't a big deal (even got a Strava cup on the way home lol)...
  10. Kepler

    Wayne’s Dengfu Carbon Fibre FS 27.5” with Bafang M600 (throttle also)

    You Jinxed me Wayne. I got an error 30 halfway through my ride today. I need an Allen key to get to my battery to cycle power but had forgotten my tools so it was a hard pedal back to the carpark. Hopefully an isolated incident but will make sure I have my tools with me next ride.
  11. Kepler

    Dengfu M09 Endruo/Freeride build log

    Some fun riding at my local trails. Love this bike.
  12. Kepler

    Full suspension mountain bike Friction Drive

    Looks a little tight in there but it has been a well proven mounting position. Check this out. https://endless-sphere.com/forums/viewtopic.php?f=28&t=22187 Friction drives using RC Outrunners have been around for a long time. What made them cooler was the Vesc and FOC mode which shut them...
  13. Kepler

    Full suspension mountain bike Friction Drive

    A 6384 motor is quite wide and may not fit between your cranks. I normally use 6354 motors but I know a 6364 will fit Ok also. The Vesc Mini are great. That's all I use these days.
  14. Kepler

    Full suspension mountain bike Friction Drive

    The motor is attached to swingarm as it needs to move with the suspension. Yes 4 cable ties are used to attach the drive. Double sided tape is used between the motor bracket and the swingarm then 4 good quality cable ties are used to hold it in place from there. Keep in mind this an oddly...
  15. Kepler

    Full suspension mountain bike Friction Drive

    Finally running a serious MTB tire with a friction drive. Feels like the last piece to the puzzle. Selected a Specialised Butcher Grid 2.6" 29er. It's actually meant to be a front tire which isn't a bad thing as front tires tend to have a more aggressive tread pattern than rear tires. This...
  16. Kepler

    Dengfu M09 Endruo/Freeride build log

    Quick update on this bike. Been riding it quite a bit around our local tracks and enjoying the bike a lot. So glad I fitted the silent gear and I am finding that after 500km of riding, the drive is quieter then ever. Few other changes. Fitted the large Luna display. The stock display works...
  17. Kepler

    Dengfu M09 Endruo/Freeride build log

    They must he joking. That is not acceptable. Its hard to tell from the pictures but make sure its just not release agent that hasn't been cleaned off.
  18. Kepler

    Dengfu M09 Endruo/Freeride build log

    Fair enough to be cautious. This is the same PayPal address that i did all my transactions with when i built my bike.
  19. Kepler

    Kepler Friction drive comes of age.

    Put together this bike to use as a low cost commuter. The bike is an Aldi special hard tail that for the bargain price of $400, came surprisingly well equipped. Included hydraulic discs and Shimano SLX group-set. Installed my standard drive bracket but added a mechanical activation lever but...
  20. Kepler

    Kepler Bottom Bracket Friction Drive For Sale (Finally)

    Sorry, I missed your post. Yes I am sure that bracket would be plenty stiff enough. Looks like a good off the shelf solution.
  21. Kepler

    Dengfu M09 Endruo/Freeride build log

    What I have found is that it is makes a difference if you turn the bike on and let it sit without moving the bike or touching the pedals. If you do this the PAS is much smoother especially in low power settings and light pedaling effort. What I have noticed is if you just jump on the bike...
  22. Kepler

    Dengfu M09 Endruo/Freeride build log

    Thanks Rix. Its a nice bike and a heap of fun to ride. Must catch up with JK after we get out of lock down.
  23. Kepler

    Kepler Bottom Bracket Friction Drive For Sale (Finally)

    I have standard drive brackets available however the design may not suit a folding bike due to the typical distances between the bottom bracket and the face of the tire. The drive is adjustable from 60mm to 110mm. The drawing in the previous post shows the drive set to 80mm. However the...
  24. Kepler

    Kepler Bottom Bracket Friction Drive For Sale (Finally)

    There are 3 possible reasons for this. 1 > Your speed controller is ramping throttle too slowly. 2 > You are not applying enough power. (Needs to be above 100W) 3 > The most likely reason is that you have not got the correct geometry setup on the drive. Please refer to the picture below...
  25. Kepler

    Full suspension mountain bike Friction Drive

    Experimenting with knurling the motor can directly. No problems cutting the knurl on to the motor can and the grip on the tire is excellent. Time to do some testing. I am not concerned with accelerated tire wear with the small amount of power I am using. More interested in how well the knurl...
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