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  1. J

    XtraCycle is on the road

    Today took Build 1.5 out on the road for the first time. The longtail eliminated the light front end issues I had. 20 mph cross winds were easily handled. Something that was frankly scary before. Not a speed demon running a 2807 clone @12s but this will carry a heavy load.
  2. J

    What ebike/kit would you sell?

    I think the best thing for ebiking would be the consolidation of vendors. Maybe 3 or 4 that would get enough business to have clout with their suppliers. It seems to me that presently Quality control and the lack of standards hurts the business more than anything. Is it too much to ask that...
  3. J

    Hobbie or a Tool ?

    I don't have hobbies. I have obsessions.
  4. J

    What is the most compact ICE motor of 5kW ( 7hp)

    I think if you expand your thinking to a trike this project becomes much more feasible.
  5. J

    The E-Vox, A new ebike desing with belt for people 50+

    Good to see a new bike designed by an engineer instead of a "designer".
  6. J

    LIPO CHARGER HELP FOR 2S2P

    What Li-ghtcycle says. I only have a 24V 500 watt true Meanwell. I can only get 400-450 watts into the batteries. If I go above that the Power supply will dip out when the hyperion 1420i comes back after checking voltage. This usually happens above 47V or so. If I had a 750 I could take full...
  7. J

    want a good kit on a budget

    Check out the 24V rating. That will be much less. That was my problem with using an old compaq server P.S. I bought a used true Meanwell 500W P.S. on EBay ~$60 shipped.
  8. J

    Ebike is a harsher ride?

    veloman: All my other bikes feel harsh compared to my Madone. It's hard to describe the difference between taking a bump with your arms, legs and butt. Versus your butt alone as an upright seating position dictates. I have a sprung Brooks B17 Flyer on my Ebike. I run with the nose down a little...
  9. J

    want a good kit on a budget

    Kinda a rule of thumb for sizing batteries is 35 watt hours per mile. Most people do better but I'd rather oversize for better battery life. So lets say you get a 10 amper hour 12S lipo setup. The cells are rated to be charged to 4.2V but they don't last as long as if you only charge them to...
  10. J

    Help! Yuba e-conversion vs Trek e-conversion

    Neptronix gives pretty good advice. I live in the flats so my first build wasn't too demanding. I'm a retired Industrial Automation guy so the electrical part was straightforward for me. I haven't paid much attention to the guys building their own controllers as it seems too much like work and...
  11. J

    Sore Butt, good saddles?

    Good points Dogman. A useful product for those not wanting to creme your jeans is http://www.nashbar.com/bikes/Product_10053_10052_506940_-1_202225_10000_202368 . Many think the "padding" in cycle shorts (I prefer bibs) is for padding so why not buy a padded seat? It's really for sweat wicking...
  12. J

    Sore Butt, good saddles?

    My bikes all have Brooks B17s on them. My Ebike has a B17 Flyer that has springs.
  13. J

    Electronic bikes deprive students of exercise, cash

    1 or 2 Miles a day? That's 35-70 Calories they could be burning riding a regular bike. Yep. That would pretty much solve the obesity crisis. The future of journalism looks bright.
  14. J

    newbie question about motor power in watts

    Check this out http://www.ebikes.ca/simulator/ P.S. I'd buy from him If you want something to last.
  15. J

    DIY JST-XH Extensions ... where can I buy the parts?

    When I bought my parallel 6s balance adapters that bring 6 into 1, http://epbuddy.com/index.php?main_page=product_info&cPath=26_14&products_id=59&zenid=vsilup151igrumi8k4rqbhfre0 several posters made a big deal of keeping all the leads equal length. It would really clean up my ammo box 12s 20aH...
  16. J

    free wheel versus cassette

    While you could do any of the above things. I'd suggest finding a used bike that has discs and a 8 speed cassette and transfer the kit to it or rob the parts off the used bike.
  17. J

    Motorcycle Class Cargo Bike: Power, Distance, Stealth, Grins

    If your packs are as good as mine you won't balance charge all that often. I'm running 8 HK 6s packs for 12s@20aH. Being that you're running 18s@30aH I'd try to find a real Meanwell to do the bulk charging and a less expensive charger to balance charge. I'm running a Hyperion 1420i with a 500...
  18. J

    E-bike battery charging while riding

    For some reason the most typical question I get from people when I tell them that I have an electric bike is "Can you charge the battery while you're riding?" I say "Yes, but why would I want to?" I take a spin class at the Y and working my ass off for an hour I can average just under 200 watts...
  19. J

    want a good kit on a budget

    I was a noob a year ago. My best advice is to have some patience. It's unlikely that you'll have anyone to fix this bike. So not knowing the terminology will make it difficult to ask questions if anything goes wrong. Your wheel building experience tells me you're capable. Having a solid...
  20. J

    Newbe here!!help me build my bike.

    Check these video's about batteries. http://endless-sphere.com/forums/viewtopic.php?f=14&t=23105
  21. J

    Newbe here!!help me build my bike.

    It takes a little time for this to sink in. Give yourself some time.
  22. J

    Newbe here!!help me build my bike.

    You've got some reading to do. Check out the battery forum and spend some time understanding the different chemistry (LIPO vrs LiFePO4). I went LIPO but I'm used to doing research and integrating different components together. Take your time in battery research the investment is considerable...
  23. J

    Demographics?

    I'm 55. Single. Retired Industrial Automation programer. Now I just operate the family farm, contract database programming and am a lycra roadie.
  24. J

    Newbe here!!help me build my bike.

    mAh = milli amp hours. The Hobby King Lithium Polymer Batteries that are popular on this forum are rated this way. A milliamp is .001 amp so a 5000 mAh battery would supply 5 amps for 1 hour. When they talk about 35 wh/mi. They're saying it takes 35 watt hours per mile. This is where voltage...
  25. J

    Petrol electric transmission

    I'm also a farmer and I have a 3000i Honda generator for remote power. I've looked into this. What would happen is the Honda first creates DC power for a solid state inverter. The inverter then creates 120V/ 60 cycle AC. That's why the Honda can speed up or slow down and you still have 60 cycle...
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