Recent content by harrys

  1. harrys

    Easily portable battery eBike

    Other people here have been doing the DIY drink bottle batteries, which inspired me to copy them. WIth the larger 21700 cells, one can do a 10 cell 36V5AH or a 13 cell 48V5AH, with a possible 160 to 200 watt-hours. I find that serviceable for an hour of riding, and I can carry two easily, I...
  2. harrys

    DM02 and TSDZ2

    I've been riding a TSDZ2 with OSF firmware for 4000 miles. This summer, I installed a Toseven DM02 on a similar bike, both older steel Raleigh 10 speeds. The DM02 is the red one. I've been really happy with the TSDZ2/OSF. Could not ride the original TSDZ2. Not enough assist for an old...
  3. harrys

    Greasing up the TSDZ2B

    Yikes. I do have a mounted AKM128 with a dead speedsensor. I am going to clamp the motor in a vise and try turning the 26" wheel. Works for stuck freewheels,
  4. harrys

    Greasing up the TSDZ2B

    That info might make me happy about my hubmotors. The AKM's are especially hard to unscrew. I am reluctant to grease them, but unlike hubmotors midmotors, water gets inside hubs. DIrt probably does too. However, we're riding the mid motors round and round these days. I am using Mobil SHC 100...
  5. harrys

    Greasing up the TSDZ2B

    Almost 4000 miles, and the motor gear has never been greased on my wife's bike. She uses throttle in 7th gear to help start. On uphill starts, I hear metal popping. Time to inspect the white gear, 1. This is the vertical bracket for holding the motor to the frame, Many people don't use it...
  6. harrys

    Calibre Bossnut with Tongsheng TSDZ2

    Almost identical to a TSDZ2B as far as mounting. I thought there might have been more clearance for cables between the DM02 motor and BB frame, but that could be my imagination. I did a conversion a few months ago, Your customers should really like how the DM02 freely distributes power in the...
  7. harrys

    250w Ebike Kit with KT Controller

    I used to mount the controllers bare, With enough time, water damage would happen, so I moved them into enclosures. You still need drainage,. I found two dead controllers under water. One had a drain, but it was at the highest point. The other was like a bathtub. Shipping even a 20"...
  8. harrys

    TSDZ2 grinding noise

    Original noise came from a TSDZ2. I've never had any problems, but it sounds like the motor gear and the nylon blue gear doing awful things together under the high torque of starting up. The blue gear is not hard to replace and is fairly inexpensive, On the TSDZ2B, there;s a similar gear,
  9. harrys

    Snapped lug on bbs02 - can I reattach somehow?

    The lug looks like part of the motor casing. It is thick enough to weld a chunk of metal that you could tap for a new screw, but that would cost as much as a new motor,
  10. harrys

    hydraulic brakes

    FYI. Have seen one of my HB100's leak and fail, correlating to the complaints on amazon reviews. Still, while they are working, they work well and two are not going to fail at the same time. Easy to replace when they do.
  11. harrys

    Battery Rack for 20" Wheel

    I did that with my first two 20" folder conversions, I didn't drop the height much, Later, I installed a box for the controller and a fender under the rack. Home made torque plate for motor on the bottom picture.
  12. harrys

    Lost key. How do I open the battery lock?

    Can't be opened by force. The key cylinder is in a metal tube. I'm sure a good locksmith, if there are still such craftsmen in your area, can pick it. I had the same problem, Bought a lock pick kit on ebay. Didn't need it, as I found the key, but I tried it anyway. Got it to open once. Never...
  13. harrys

    Help! My next project

    So you approach a hill at 30 mph, and the pedal assist or throttle won't kick in until you have slowed to 10 mph? Do you have a 15.5 mph speed limit set in the display?
  14. harrys

    Help! My next project

    This true. I rode our Biria/AKM128 yesterday. It flew up the hills in PAS 3. Well, it's pulling 800 watts too.
  15. harrys

    Help! My next project

    If you tap the white signal lead at the end of the motor cable, and add 5v power/ground, you can power an external speed sensor if your motor sensor burnt out. Ive done this on a G60 bafang and also on motors that had no sensor. The trouble I had was a lot of electrical noise. It could be due...