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  1. George S.

    Financial Times Article on Ebike Supply

    It's interesting how difficult it is for Pedego to actually service its large dealer network. It's confusing that Lectric, which sells a lot of ebikes, has been 'in stock'. But that may be because their ebikes are basic. So the more you drift up the parts scale, the harder it is to find the...
  2. George S.

    AAA Cal/Ut/Nev Bike Coverage

    The AAA clubs set their own rules. Some have included bike coverage, mostly transport if you get a flat, but some have not. My region did not cover it. But I guess they do now. https://mwg.aaa.com/membership/articles/bicycle-roadside-assistance
  3. George S.

    Ebike #5 -- My Personal Thoughts on the XP ST V2.0

    XP Thoughts – XP v2 ST --- Part One It comes in a nice box. The Fedex guy hoisted it on his shoulder and brought it up to the door. I Unboxed it outside, on a nice day. It’s shocking that it is shipped fully assembled. I have built a few Bikes Direct bikes, and they were a pain. This was done...
  4. George S.

    Is Bafang Finally Showing Their Hand

    I've noticed the shift to a new generation from Bafang. A lot of the information comes through Eunorau. Now there is website that is basically a joint enterprise with both Eunorau and Bafang. There are listings right now for 2 products. There is a kit that roughly corresponds to the BBS02 and...
  5. George S.

    Why Do Lithium Packs Fail?

    Why Do Packs Fail? I bought 4 9ah LiFePo4 packs, rated at 12 volts. These packs were old and used. When I tested the 4 packs, they ranged from 6.4 amp hours to 7.7 amp hours. With different capacities, and 4 in series to make a 48 volt pack, you have to charge and discharge for the weak module...
  6. George S.

    Tesla 21700 Cells in Ebike Pack

    I noticed that UPP, or Unit Pack Power, a Chinese ebike battery pack maker, now lists the Tesla 21700 in their high capacity packs. (See Amazon snip). I don’t know how many pack manufacturers have moved to the 21700. I have to figure that Tesla cells would be highly regarded in the US. I’m not...
  7. George S.

    Lishen 21700 Cells in US

    Lishen 21700 Cells I noticed that JAG35 (Jehu Garcia) is now selling Lishen 21700 cells. I wrote a summary of Chinese 21700 cells when I talked about the Liito Kala 15AH and 48v pack build around 21700 cells. The LK is the hundred dollar pack that is still around. The 217 is a very nice ebike...
  8. George S.

    Visibility: DIY Rear Blinker

    https://www.huffpost.com/entry/greg-knapp-dead_n_60fa87dee4b0ca689fa8381f https://nextcity.org/features/view/how-much-is-a-cyclists-life-worth-anyway I’ve had two very scary incidents where a driver crossed the centerline and was heading right for me. Both times the driver seemed to look up at...
  9. George S.

    Cheap Spot Welders and YT Vids

    You Tube Creates Clarity and Chaos Last September, I bought a Chinese spot welder for $25. I went through Amazon thinking there is more protection if something went wrong. The welder took 3 weeks to show up and burned up in the first five minutes. I filed a claim, or whatever, with Amazon. The...
  10. George S.

    Used Batteries and Recycling Issues

    Everyone seems to understand that batteries are the future. The main thing that drives battery power is cost. People are buying some electric cars, BEV’s, but they are buying a lot of ebikes. I don’t know how much people know about battery power as it pertains to an ebike. There are grades of...
  11. George S.

    Is This Battery Pack for Real ($106) ??

    Is This Battery for Real?? shorturl.at/suIOQ I ordered this battery the end of March. It arrived last week, around May 13th. The package simply showed up with a DHL label on it. There was never any tracking. The cost was about what the ad states, plus sales tax. I guess Ali is enough of a...
  12. George S.

    A 48v 15a Used Pack -- $100

    An Interesting Battery Pack ($100) This is a battery pack that would work with most 48v ebikes. It consists of 91 (13s7p) Samsung 22P cells. These cells have been around a very long time. The oldest datasheet I found was dated 2010, so these guys are going to be teenagers pretty soon. I’m not...
  13. George S.

    A Van and an Ebike

    I live in a small town, maybe 20,000 folks, but housing is spread out so who knows that they are counting. When I got here, it was a bit run down. People moved old single wides out to $10,000 lots in ‘the valley’. Gee, now? They are developing the land just south of the old cheap areas into half...
  14. George S.

    The Hundred Dollar Ebike Battery

    The Hundred Dollar Ebike Battery You can build an ebike battery in an hour if you understand the basic concept of ‘series’ power. The parts are simple. You buy 7 of these. You cut off the connector and carefully do a series connection (black to red) on each pack. Tape it up...
  15. George S.

    Ebike Batteries in Perspective

    Ebike Batteries in Perspective Five years ago, when I was going to buy my first ebike, the battery was a limiting factor. Basically, a 36 volt and 8 Amp Hour battery retailed for $700 or so. We now see mostly 48v batteries, even in the low end stuff, and 12 AH is pretty standard. In the...
  16. George S.

    A Solid Soldering System, and Cordless

    A Great DIY Tool Building a bike into an ebike is a great way to get the best value for the dollars you spend. On the other hand, there are some things you want to do right. If you follow what might be called industry standards, a DIY is comparable to any bike in terms of integrity of the...
  17. George S.

    DIY Type Ebike Battery, 3 year test

    An exemplary ebike battery performance Basic specs: a 36v 15AH LiFePo4 (pouch cells) Vendor: Sun branded, sold by top.pathfinder (Ebay) Price: $320 Shipped: June 2015 (from China by sea) In Service: August 2015 (800 Watt Ebikes) Approximate cycles: 300 Test Date: October 23, 2018...
  18. George S.

    Nice DIY Story

  19. George S.

    That Cross Bar is Going to Kill You

    https://www.treehugger.com/bikes/should-mens-bikes-crossbars-be-banned.html I don't like climbing over the top on men's bikes. That last time I was building a bike, I wanted a step through. The dealer told me Trek made a step through. Well, not exactly, they make a women's bike that is a step...
  20. George S.

    The End of Range Anxiety

    This is pretty much the end of range anxiety. The battery would fit on the rear rack of a bike, but I’d go with a cargo bike or some kind of recumbent. Fifty pounds is fifty pounds, but the pack is not huge. And it is 2.6 kwh. That is roughly five times the standard packs they put on most...
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