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  1. O

    My first entry into the world of E-Bikes

    How many steel frames have been lost to rust? Derailers, chain and sprockets I can buy, but I've never had actual rust on a frame that wasn't simply cosmetic. I'll take that over the possibility of a sudden failure; I had an alloy stem (Al I guess) fail on me once. Fortunately I wasn't going fast.
  2. O

    Blimey, these controllers don't half get hot.

    Did you goose the throttle going slowly up a hill? If the motor is running at an inefficient speed, and it's being overfed with current that it can't use, then all that gets dumped into the controller in the form of heat I believe. Aside from that, yeah put it in the airflow.
  3. O

    My first entry into the world of E-Bikes

    Well my new bike is CroMo. So hopefully that will keep me sorted for as long as I need it to. But I think I'm hijacking somebody's thread. :o
  4. O

    My first entry into the world of E-Bikes

    Well since I'm now the proud owner of a Kona Smoke acquired for $399 NZD new from a NZ bikeshop (it was advertised on trademe-our ebay. I got lucky) I will be going the DIY route myself. Of course I'm going to spend more money and get an ebikes.ca Ezee kit. That should just drop right in and...
  5. O

    Elation or Cyclone Chain Drive Kit?

    Here's a review of the Elation. Worth reading every post in it as several owners chip in. I think that the waterproofing has been improved over the Cyclone, and the mounting system is better and cleaner-the battery just sits right over the motor in the triangle. According to the maker, it's...
  6. O

    video demo of steep climb with Yahama crank motor unit

    Beautiful machine though. Absolutely beautiful. If we put together Japanese engineering with the American ebike rules, we could really make bikes worth owning. Instead we get all these complications and a fractured market.
  7. O

    What's the best location speed controller?

    If I recall my physics correctly, the resistance in those wires will be in the milliohms. Even if running a 20amp current through them you wouldn't be seeing a fraction of a volt of drop. I'd pay more attention to the quality of your connectors (a lot of losses are at poor conections) and place...
  8. O

    At last, a hill-climber...

    You can find plenty of information on Endless sphere regarding front forks, dropouts and hub motors. I strongly recommend that you go visit, as they have a lot more experience than the average pedelecs member on faceplants and what have you. Comes from the high percentage of high torque...
  9. O

    Wisper 905 or Ezee kit?

    What I meant by asking the Land Transport Authority wasn't so much for importing, but for using. I just want to know the chances that I'll be pulled over by a cop. Probably small, but... Anyway thanks for the heads up on GST. I'll need to keep that in mind.
  10. O

    Wisper 905 or Ezee kit?

    I've seen the teampoynter website, and it's a shame that the Ezee's aren't imported by a more specialist company. I wasn't planning to buy from them anyway, not being Auckland based myself. Hadn't thought about the GST. It might slip under the Radar, or it might not. I have been looking...
  11. O

    Wisper 905 or Ezee kit?

    Well if I get an Ezee I'd probably be restricting the battery to a 1.5C draw and I'd eventually (in a year or three) be getting a bigger battery for it.
  12. O

    Wisper 905 or Ezee kit?

    Yes the local support would be nice, though ebikes.ca do provide good backup, postage from Canada would be an issue... What are the chances of actually getting a dud Ezee kit though? ebikes.ca do check everything before they send and a lot of issues are user fixable. I'd really like one of...
  13. O

    Wisper 905 or Ezee kit?

    Buying my first electric bicycle in December when I get back to NZ after my 8 year stint in Korea. I've narrowed down the options to two. 1. Wisper 905 cityS $2600-$2800 NZD. 2. Front Ezee kit $2000 NZD plus a bike to put it on. I'd get it from ebikes.ca and probably get the Cycle Analyst...
  14. O

    Wisper 905se Sport Battery Life

    So hopefully one would get a good 500 cycles without a substantial decrease in range over 3 years? That's 25,000km or so per battery if true. As an aside Flecc, to what C rate would you wish to limit a discharge to in order to maximise life? 1C? Or less?
  15. O

    Wisper 905se Sport Battery Life

    You're assuming 100% efficiency for the charger itself and the chemical process to charge the battery. I'm not sure what the efficiency is, but I'd guess roughly 75% or so.
  16. O

    Wisper 905se Sport Battery Life

    I'd be interested in hearing from anyone who's had one of the 14AH wisper batteries for more than 2 years, and how it's stood up to the wear. We've heard plenty about Ezee after a year or so, and lots and lots about Wispers within a few months of purchase, but I don't think I've heard anyone...
  17. O

    Possibly the easiest question in the world..ever

    I will just briefly answer your questions by summing up what you've read. Crank drive systems have lower maximum efficiency than hub systems. However for certain applications the advantage of gearing outweighs the extra complexity. Those applications would include really steep hills and possibly...
  18. O

    Fastest electric bike for long commute?

    A Wisper 905 derestricted (simple operation) will do about 19mph. An Ezee kit from ebikes.ca will do 22mph. Neither legal. I guess it comes down to how much you want to bend the law. I personally think a 25km limit is too slow and the requirement to pedal is stupid. What if you have an...
  19. O

    Which is Safer, Road or Cycle Path?

    I would suspect that the more used paths are, and the more integrated cyclists are into a culture, then the less likely incidents like this would become. After all, who would drag trees onto paths that their friends or parents use? Also the money invested in the quality of the paths tends to...
  20. O

    Tailwind - fastest charging electric bike

    I don't know. If your day involves touring local coffee shops, then you could recharge at every Starbucks! More seriously, a fast charge is only as useful as the number of times that you're likely to be able to use it, and not have enough time for a longer charge. It makes a lot of sense for...