Search results

  1. gromike

    Riding with music: Any attempt to sync cadence with beat or vice versa?

    Boy, if you're riding to that music, well I think I need to take a nap! Though, good for you, boosting the BPM. :)
  2. gromike

    Crazy Walmart mid drive deal $349

    Back to the original topic about these under $300 mid drive bikes (I factored out the shipping cost.) The frame appears OK, and the motor and battery work well. But everything else is super cheap. So. it's a yes and a no as far as this ebike in concern to the question "Do prices reflect...
  3. gromike

    Yamaha Cross RC. Wrong bike for me.

    Some mid drives have throttles. I have one (a Bafang BBS02), no pedaling needed. European and Japanese mid drives usually don't because they conform to their jurisdictional regulations. The US is the wild west of ebikes, but we don't build motors or controllers. It all depends on how the motor...
  4. gromike

    New guy here!

    Welcome. So you want the motor speed controller replaced? Why? You might be able to contact someone. Their website's still up: https://fattebikes.com/pages/contact .
  5. gromike

    Crazy Walmart mid drive deal $349

    Just thought I'd celebrate the end of my Crazy Walmart Mid Drive Deal! I bought three of them, and after replacing the seats and brake calipers they are a sweet ride. About $440 in each bike, which includes bike, shipping, parts, and taxes. Labor, as always, is free. One is now my around town...
  6. gromike

    Show Us a Tool

    I had that happen while riding a motorcycle on a winding road. The bug landed between my lips, turned and stung my lower lip. My vision went black for a moment, and I gently braked to the side of the road. Had a first date with someone that night, and they didn't care too much about my big old...
  7. gromike

    Giant targeted. Not a good situation...

    When did the Trump administration start caring about workers rights, and when have they ever spoken the truth. To them, this is just a lever to use against Taiwan in the present trade dispute. The jewel of Taiwan's industry isn't bicycle manufacturing.
  8. gromike

    Giant targeted. Not a good situation...

    I was reading up on this, and it seems the US is in difficult tariff negotiations with Taiwan and the motivation is to put pressure on the Taiwanese government to concede to US demands. The labor exploitation issue is much bigger than one Taiwan based bicycle manufacturer. It was also stated...
  9. gromike

    Very Interesting .......

    I don't know, but maybe the Ultra might work well for this CVT. The problem with the cables is that you are working those spring loaded plates, so it's a bit of effort. An electric/electronic setup might solve that issue. It's a really cool over a century ago concept, but it might have found...
  10. gromike

    Very Interesting .......

    I have a Nuvinci360 hub, a predecessor of Enviolo. Same design. It has a 360% range. I put it on a bike fitted with a TSDZ2b. I needed more range, or more gears, or more motor. Took the Nuvinci wheel off and went with a derailleur setup, but ulimately gave up on that bike. The Enviolo design...
  11. gromike

    Ebike helmet

    Some of us have been broken then screwed, glued, and threaded back together. You fit the bike to you the best you can.
  12. gromike

    Giant targeted. Not a good situation...

    Unfortunately the CPI doesn't factor in bicycle parts, but this issue is certainly not limited to Giant. Best to buy bike parts now.
  13. gromike

    Aventon Pace 500 original model, worth selling?

    I don't think they are worth all that much but you never know. I bought one for my son, new, so he could get to work. When he moved away the bike returned to me, and I noticed that the spoke holes were cracking in the rim. So I took the motor out of the rim and put it in a 26" wheel. With the...
  14. gromike

    Rear sprocket and hub issue

    What gear were you in when riding up your driveway? Hopefully you downshift. The installed freehub might not be capable of handling the 170Nm of torque your mid-drive can produce.
  15. gromike

    Ebike helmet

    I recently bought a full-face motorcycle helmet, and it is one serious head case. You put it on and you are imprisoned in the thing. I guess you need that in high speed head falls. I would not like that in a bike helmet, but then again I come from a time before bicycle helmets. I remember...
  16. gromike

    Ebike or exoskeleton? Or both?

    Looks like nothing more than marketing hype. I mean, show me the motors and battery, and how it's all hooked up. It looks like it would be quite uncomfortable in use.
  17. gromike

    Li-ion or LiFePO4?

    LFP cells have a lower voltage than Li-ion, so you need more in series to get your nominal voltage. I have many surplused A123 LFP cells. 50 amp current rating per cell but only 2500mah per cell. They make great batteries, if you don't mind the size or weight.
  18. gromike

    Li-ion or LiFePO4?

    LFP batteries are bigger and heavier for the same power rating as LI-ion. Their power density has been going up, but so has Li-ion. As a battery designer, one would need to balance all of the parameters. Myself, I recently bought some 18650 battery cells and they are 3500mah, almost twice the...
  19. gromike

    Show us pictures of where you ride your ebikes!

    Spent my High School years body surfing and skim boarding on those beaches. That area has special significance for me. Thanks for the journey down memory lane.
Back