Recent content by kdee122

I just updated two of my mini-e to the latest firmware and now i have throttle problems. When i go to the "throttle limits" setting menu page I no longer get any movement on the small slider at the bottom of the screen. This with the domino throttle. I have new throttle and have the same issue...

The aluminium parts are all anodized and the bolts are likely to be stainless steel or steel bolts with a special corrosion plating. One of the problems on the prototype has been corrosion of the bolts, but this is easy to fix.

Welding is great way to make bikes (and racecars, my "real" job). For my bike project there is no welding for two major reason. Heat treatment and distortion. When you weld aluminum you lose approx 50% of the strength in the heat affected zone (for typical TIG welding this is the weld bead and...

The swingarm was designed with topology optimization and I was surpized at the number of windows vs pockets. It is CNC machined form 6061-t6 aluminum. I have had a few componet failures in vibe testing but hope to be selling frames and complete bikes soon.

Just a FYI I use bicycle spokes and have made custom CNC nipples that fit motorcycle wheels. No washer needed. If there is enough interest I can make them for others.

Im running a bridgestone TW301 3 inch x 21 front tire. My rear is a Metzeler Karoo 2 90mm x 21 inch. I prefer the TW301 but the Metzeler distributor is across the street from me so they are easy to get. For this bike the tires are fine but I will be doing a lighter weight build and will need...

I dont have very detailed build log. You can see some of the build on my post http://endless-sphere.com/forums/viewtopic.php?f=3&t=50795&p=873172#p873172 here. I have not weighted is but it is around 100 lbs. Its a lot more than I initially planed for but it rides very well. As the components...

New video from todays ride in the mountains. Still a few things to update on the design but it is getting to be alot of fun. I'm not totally happy with the brake feel. I still have not installed the upgraded pads or even switched to the Hope V2's that I have. The Shimano Zee brakes are ok but...

Sorry I posted the wrong picture in the last post. Here are the 21's this give you a good before and after look.

I use an "inside the box" controller and on my initial prototype I mounted it with double side foam tape. At 5kw the controller easy over heats after 2 to 3 minutes of full power use. I will soon switch to thermal bridge design with the heatsink bridged to the alum enclosure. So in short you...

I must be one of the only people running 21's front and rear. OD is only 2mm larger than my old 26 x 2.4 downhill tires. Weight is up big time but I did not measure it back to back. Running Kenda downhill tires my tire life was only 150 to 200km and I was always worried about pinch flats. So...

Here is how I did it It only works on an inverted fork however so a DMN, Mantou or DVO....I have a DVO fork on the way.

Obiwan I will modify or machine a BMX style freehub. Its a bit low on my list of things to do however so it will be a few months.

14 is the smallest you can find.....I am working on a 10 or maybe even a 9 but it will be months before its ready.

I was a bit surprised to see Caterham make the jump to making e-bike (or at least e-bike prototypes). I had not thought of it much until this afternoon when I noticed my bike hanging out with Caterhams latest(Lola's), the SP300r. I think racecar manufacturers may be one of the surprise new...