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  1. harryS

    2025 - Our Rides in Words, Photos, Maps and Videos

    Unless we pack the bikes on the car, we do the same old trail that runs by our house, For a few days every year, it can get brilliant with color. Crossing the mighty Dupage river. We make a 20 mile ride out of it going out and back,
  2. harryS

    Tried Running a 72V Motor on a 52V Battery — Here’s What I Learned

    Good topic, but many DIY guys are looking to try increased voltage , Going from 36V up to 48V and even 52V won't hurt most hubmotors. Just make sure the controller can handle the higher voltage and use some restraint. I routinely run my hubmotors on my 36, 48, and 52V packs, accepting that...
  3. harryS

    Best mid drive motor under 500 Dollars?

    I was riding my TsdZ2 yesterday and thinking how nice it was, even if the DM02 is stronger, Dick Tracy approved. In my opinion, Tongsheng sure is stingy about doling out power for old men, but that's why I have OSF. I should mention that electrifybike.com used to sell TSDZ2B's with OSF, but...
  4. harryS

    Best mid drive motor under 500 Dollars?

    I've only had one guy scam me on aliexpress, and it was my fault. I let the dispute window expire while he sent me emails. If the dispute is entered, and you have a good case on video, Aliexpress rules in the buyers favor. I found buying from China quite safe, and economical, but tariffs have...
  5. harryS

    Urtopia Fold improvements

    The Big Apple in a 20" comes in 2.0" and 2.25" widths. We put thousands of miles on them, 2" on my folder and 2.25" on my wife's bike. Low rolling resistance and a great ride. Good Schwalbe puncture protection too.
  6. harryS

    Best mid drive motor under 500 Dollars?

    I've never seen a BBS02 much lower than $400 from China. I recall I paid around $400 in early 2023 at pswpower, shipped out of their US warehouse, but they have no stock in the USA at the moment. I've not bought anything from CHina since August, when the $800 de minimus waiver on tariffs was...
  7. harryS

    Best mid drive motor under 500 Dollars?

    These clamp onto the frame. The axle provides some support. but it's up to the user to make a more permanent install. What I do is cut a slot so the axle can slide in and out, and tie the blue part to the frame, with tapped holes. It's much like making a torque arm. If one could weld, it's...
  8. harryS

    Who's ebike riding could ALL be done on a regular bike?

    I've ridden my regular bike 60 miles this year, 100 miles last year, but peaked at 560 miles in 2023. That summer, my wife was injured, so I spent June/July on my regular bike. Normally my wife/I ride about 2400 miles together on ebikes, and I get another 600 solo, To be honest, without...
  9. harryS

    Best mid drive motor under 500 Dollars?

    My DM02 was purchased a year ago, so it has open settings on the T-24 display. I have read that subsequent firmware updates for both display/motor restrict the power. Most of those updates reported bombed out too, if you read the Toseven WIki. https://toseven.miraheze.org/wiki/Main_Page The...
  10. harryS

    Best mid drive motor under 500 Dollars?

    I own four mid drive installs. BBS02B, two TSDZ2, and a DM02. BBS02B is the winner for power and reliability, but I had a setup problem with a 2023 model I did for a friend. Had to use a program cable to set it up like mine. The problem was the factory set speed limits for each assist level...
  11. harryS

    Signs of fall/winter.

    We do our winter riding with down jackets, but they're still packed away. Been riding around in 52-54F weather with wind breakers and sweat shirts. Cold.
  12. harryS

    Help and guidance replacing rum on motor hub

    Motor hubs are not standard, but are easy to measure with a $20 digital caliper. I would not trust published ERD's, as you may not have the same exact rim. Easy to measure ERD by putting the parts in the rim as shown above, If you want to be super accurate when setting up the ERD measurement...
  13. harryS

    Replacement Rear Hub Motor 2018 RAD City

    No Z916 is the connector on your controller. It is a 9 wire connector with three large visisble pins for the motor coils, plus 6 smaller wires for position sensors and a soeed sensor. The Z916 was picked by RAD because (1) it can handle higher motor currents and (2) no one else uses it. Other...
  14. harryS

    Replacement Rear Hub Motor 2018 RAD City

    What happened? Did the axle nuts come loose and spin the motor, twisting the cable and breaking it? In the best of scenarios, you can find another direct drive motor like what you have, or switch to a geared motor like RAS has done in newer City bikes. You work around the possible connector...
  15. harryS

    hello from an old guy with bad legs

    This is my cruiser. I got the motor for 45 bucks. Bike is a cheap Kent from Walmart - pure junk. Parked on a frozen lake last February, That front wheel spins like mad on slick stuff, so no, I didn't ride it there, The $250 UPP pack on the downtube is clunky, Less than $500 in the bike...
  16. harryS

    anyone get leg cramps?

    In the winter, when riding less, the cramps at night were really bad. A hot shower on the legs helped, if I was able to hobble over to the tub. I can't recall them happening at night since last winter, I think spinning the pedals must help keep the legs looser. They used to suddenly occur after...
  17. harryS

    CBS Evening News

    I believe it's crazier on the West Coast, where the kids can ride all year long and perfect their wheelie skills. Here in Illinois, only the adults are riding now that we have wind chill down in the 40's. My main reference point is my local bike path. The kids used it when school was out, but...
  18. harryS

    Help and guidance replacing rum on motor hub

    You will need a spoke calculator, and this is the one I've used, I've done over a dozen wheels, https://ebikes.ca/tools/spoke-calc.html The most critical measurement is the effective rim diameter, ERD. For the above calculator, this is measured from the top of the nipple in the rim to its...
  19. harryS

    hello from an old guy with bad legs

    Very nice. I looked at the stock guard on the Tracer website. The new one is much better looking! I might have trimmed the end of the chain guard and smoothed it out. Will look just as good. To keep busy tinkering during the winter, they have fake leather hand grips with metal clamping rings...
  20. harryS

    TSDZ2b power setting problems

    I'm not familiar with the 860C on TSDZ2B, except on the Bafang BBS02 where it's very good. This would have to be flashed to work specifically with the TSDZ2. Maybe you're looking at a Bafang display manual? I recall the 860 display does show watts. Are you seeing any power readings comparable...
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