Search results

Date Relevance Most replies

  1. karlInSanDiego

    Compact Bamboo Long-John Cargo E-bike

    I was really concerned that remote steering involved critical geometry consideration, but I was overthinking it. For my build I sourced a local used fork in ebay, and sectioned and MIG welded a length of new steel tubing between the upper and lower portions of the steerer. I cut off the fork...
  2. karlInSanDiego

    Compact Bamboo Long-John Cargo E-bike

    Yeah, if you ever cut through a double or triple butted steel triangle and see how scary thin it is, it makes you appreciate the skill needed to build steel frames.
  3. karlInSanDiego

    Compact Bamboo Long-John Cargo E-bike

    ZeroEm - I'd say bamboo is probably the same or heavier than most comparable shaped frames. When you have no experience doing successive builds or destructive testing, you tend to overbuild your lugs. Same problem if you built your first carbon fiber frame by hand without molds and intimate...
  4. karlInSanDiego

    Compact Bamboo Long-John Cargo E-bike

    Much thanks to James at the Bamboo Bicycle Club. Here are some shots of my finished Compact Bamboo Long-John Cargo E-Bike. I designed it on SketchUp. It's inspired by a German Muli design. It has a 1000W mid-drive Bafang motor, 2 used 491Wh e-scooter batteries, located in a homemade battery box...
  5. karlInSanDiego

    Your Creation's Before & After Pics

    2002 Greenspeed GLR w/BBS02 Before: After:
  6. karlInSanDiego

    GreenSpeed GLR Trike w/BBS02

    Finished battery mount in rear.
  7. karlInSanDiego

    16"+ Speed sensor on Bafang 750 BBS02 = top speed

    Answering my own question here. The Eggrider will override an old BBS02 controller's speed limiter.
  8. karlInSanDiego

    Eggrider won't display excessive speeds?

    Is there a known issue with Eggrider V2 where speed displayed rolls over after you exceed 29+ mph? Just about to start my maiden voyage on new build and testing it out on jackstand (trike), I can see it go to higher speeds than 29 but display shows teens and 20s as if 18 is 38, and 20 is 40...
  9. karlInSanDiego

    GreenSpeed GLR Trike w/BBS02

  10. karlInSanDiego

    GreenSpeed GLR Trike w/BBS02

    Even a top quality chain means you have to pay 3x. But it will last 3x longer, so there's that. I went with KMC X10 with the Ti-N gold treatment. This is why I can't afford new spokes :lol: I did restrain myself from spending the extra on the 10XL. Also note to all trike owners. Keep your...
  11. karlInSanDiego

    GreenSpeed GLR Trike w/BBS02

    Agreed that reusing old bent spokes seemed like false economy. I now work for a non-profit and this bike has no specific need in my life so it was an extreme use of discretionary income, my bid to prove to myself that you can grocery shop 18 miles away from your home with a trike. My work is...
  12. karlInSanDiego

    bbs02 - what size chainring for my commuter?

    Thanks for the extensive report back, Kim. Most people aren't interested in the high speed travel unless they are using the bike for utility on long open road travel. Then it becomes a big advantage. With most bikes you start hitting that aero wall, which is why I think many people say there...
  13. karlInSanDiego

    GreenSpeed GLR Trike w/BBS02

    Two spokes were broken inside their nipples on this wheel These hubs are probably very hard to replace, so I decided to try to refinish them, low-budget style Bearings were pretty shot This was a gamble. I could grind the plastic coating off these, but that could leave scratches & waves...
  14. karlInSanDiego

    GreenSpeed GLR Trike w/BBS02

    Bringing Greenspeed home - at this point I still thought I bought a GTX from 2004(ish). Prev. owner didn't know model or year. Started to realize it's actually a more rare 2002 GLR and that it has the 7 x 3 internal gear hub but with a 9 speed cassette fitted Even race trikes are tough to...
  15. karlInSanDiego

    16"+ Speed sensor on Bafang 750 BBS02 = top speed

    Maybe I'm misunderstanding how far the software/programming cable has come. Is there better software than Bafang Configuration Tool V2 to use that'll easily unlock the 40kph limit?
  16. karlInSanDiego

    16"+ Speed sensor on Bafang 750 BBS02 = top speed

    looks like the 500C can do override 50kph limit too (and us 99 kph top speed), and is cheaper, but maybe lacks much of the tunability of the Eggrider. Any thoughts on these various displays? I had thought the display had little to nothing to do with the controller settings. But even it...
  17. karlInSanDiego

    16"+ Speed sensor on Bafang 750 BBS02 = top speed

    I'm fitting a 750W Middrive on the front boom of a recumbent tadpole trike. The trike in question is a 2002 GreenSpeed GLR with 16" wheels in front and a 20" wheel in rear (not my trike but good pics here: https://laidback.me/greenspeed-glr/ ). Given that the simple speed hack of calling a 26"...
  18. karlInSanDiego

    bbs02 - what size chainring for my commuter?

    Hi Kim, what did you decide on? My full suspension BBS02 750W ebike with 46T stock and 11T in the rear was great for commuting and my standard pedaling mildly hard speed was 30mph. I did burn a couple of controllers when I went too high with Amp settings, but the problem isn't having too high...
  19. karlInSanDiego

    New Bafang Crank-Drives

    d8Qt0hd7C9Y 2004 Maverick ML-7 Bafang BBS02 750W Midmount Motor 11.5 Ah Bottle mount Battery w/Samsung 29E 18650 cell 13s4p DUC32 Maverick inverted dual crown fork Magura Marta SL Disc Brakes Clarks 203mm rotors SRAM PG-950 9 speed 11-28 Cassette Ergon GR3 Biokork grips SRAM XO rear derailleur...
  20. karlInSanDiego

    Ideas on Keeping Dry with a Fairing

    Cedric Lynch preferred this solution
  21. karlInSanDiego

    Bottle mount 48V 14.5AH w/ NCR18650B -last at 25A?

    You guys are making valid points, but this is IMO a relatively affordable, relatively safe route for a first time builder. If you look at it from a DIY perspective, it may not seem too logical, because the world is your oyster as far as spending hundreds on Aliexpress, soldering all the parts...
  22. karlInSanDiego

    Bottle mount 48V 14.5AH w/ NCR18650B -last at 25A?

    Unfortunately, I don't believe 5P is possible in the two most popular bottle formats, when you need 48V. Since you require 13S to get to 48V, and the form factor fits 50 or 52 cells, you're left with 13s4p, so no hope for 5p until somone builds an unsightly big gulp bottle pack. I'm going to...
  23. karlInSanDiego

    Bottle mount 48V 14.5AH w/ NCR18650B -last at 25A?

    Fair point about the max current, Ewan. You can set it up around 1000W or so though, right? Seems a waste to not make available the reserve power it's capable of. I'm a noob, so correct me if that's bad logic. At 15A, I'd be running approx 720W which is a little under the 750W power it's...
  24. karlInSanDiego

    Bottle mount 48V 14.5AH w/ NCR18650B -last at 25A?

    http://www.emax-ebikes.com.au/store/p11/Dolphin_Frame_Mounted_Battery_Pack.html Hey guys, I've read as much as I can about these Panasonic NCR18650B cells (including in bikes, RC, skateboards), and that they must be charged slowly and that they are low C. I can't see this discharge spec(in C)...
Back
Top