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  1. K

    Comparing my Class 1 to my Class 3 on the same urban loop.

    Does anyone have information on what the EU really allows for power rating / max power / etc? It's clear that HR727 in the US details that 750W is just a motor rating and not a max drive system power and focuses on restricting power per constraints above 20mph but everyone seems to have a...
  2. K

    Comparing my Class 1 to my Class 3 on the same urban loop.

    Cool data, but if effective urban mobility solution is wanted I would think average speed would become more important and the rider exertion needed would also want to be reduced (assist can always be reduced to get more exercise). Personally I think the reason why the average speeds are not...
  3. K

    Massachusetts ebike legislation

    Seriously you want to just have the state recognize HR727 as a compliant bike. 3-class legislation is simply poorly thought out. It makes lawmakers feel like they are doing something but it actually is never going to enforceable (stickers really?). The CPSC requires LSEBs to be compliant to...
  4. K

    I think my New e-JOE Bike is way faster

    Most of these threads where riders are complaining their bike is too fast have an agenda ... which is what I'm accused of having frequently when I oppose that they ignore they can just ride as slow as they choose. They want EU like ebike laws where 15 to 20mph is max assist speed to be ridden as...
  5. K

    Heres some real world ebike motor data.

    I did not write or work on HR727. You bring up consensus ... that bill passed one single vote short of full house and senate consensus. It is the definition that was a close to consensus as any of us will likely ever see and yet I'm made out to be the bad guy on many EBR threads because I...
  6. K

    Heres some real world ebike motor data.

    If someone releases an ebike with a throttle that only function when the rider is pedaling is that a throttle or a PAS ebike? My only point is I have no clue why how the assist is regulated determines compliance for use by the 3-class system. I don't know of an example where a state has defined...
  7. K

    Heres some real world ebike motor data.

    Why is favoring the 2002 HR727 some crazy agenda? The definition was written by a Phd Electrical engineer that understood the power / speed relationship better than me and everyone on EBR so I just think all us that want the best future for ebikes should consider understanding it and what the...
  8. K

    Heres some real world ebike motor data.

    Yes Yes .... Far too many recreational trail / mtn. bikers keep throwing out opinions on ebike performance for urban use that they know nothing about. Many have said they feel their trail access could be taken away if the 3-class system was tossed out (HR727 intent was to define a Low Speed...
  9. K

    Heres some real world ebike motor data.

    Obviously, I'm pretty passionate on the power/speed and regulatory aspects of ebikes. I don't have $millions$ to push regulatory capture like People for Bikes did to get the 3 class system adopted in so many states. I believe they had a hidden agenda while mine is simple and totally out in the...
  10. K

    Heres some real world ebike motor data.

    I'm not endorsing anything. I'm just pointing out the huge impact hills have on top bike speed. Everyone seems so freaked out about ebikes assisting beyond 20mph when a 6% hill results in a coasting speed of 30mph. Just a fact that is totally ignored. Seems to me that limiting ebike assist speed...
  11. K

    Heres some real world ebike motor data.

    The fact is that a 6% downhill grade will result in a coasting speed of 30mph on a mtn bike and a bit faster on a road bike with ZERO rider pedaling. That is a fairly common hill grade in most cities so bikers do coast down those hills and hit a top speed around 30mph unless you are suggesting...
  12. K

    Heres some real world ebike motor data.

    You seem to imply that 20mph is "fast enough" going down a hill on a bike. Do you understand that if that hill is over a 3 percent downhill grade that most riders would have to be braking the entire time down that hill to not go faster than 20mph. A 6 percent downhill grade results in speed...
  13. K

    Heres some real world ebike motor data.

    That study result is real - there was a cumulative distribution of the top speed hit by riders on non-bikes on typical rides. On downhills the top speed of the majority (like over 95%) was around 28mph. It was not an average speed, just the top speed. If you just simulate what a long 6 percent...
  14. K

    Heres some real world ebike motor data.

    Yes. I agree. The funny thing is how many commenting in this forum seem to think that 750W is just too much power to be a bicycle. That power is best utilized to increase the average speed up hills and not about increasing the top speed riders to. There is one fact that many people ignore - a...
  15. K

    Heres some real world ebike motor data.

    NO NO. In 2002 congress passed HR727 one vote short of full consensus that a LSEB with 750W rated motor (power limited above 20mph) was same as a bike. We can sit here on EBR and debate when motor power goes from being OK to be a bike to when it's high enough to be considered a moped /...
  16. K

    Heres some real world ebike motor data.

    While 250W EU spec motors is "good enough" for recreational / mtn ebikers it simply is not adequate for an effective urban mobility solution. If an ebike is to have enough merit to get people out of a car for some trips / commutes from home they need to be able to average faster speeds like...
  17. K

    Confusion on trail rules?

    Why is it that so many think they should decide if someone with a disability should be allowed to ride an ebike? Some may just have knee issue so they can't put a lot of power into the cranks and need a throttle. So why is it a problem that a 750W 20MPH throttle-assist ebike can ride where a...
  18. K

    Better thumb throttle?

    I know PIM / Polaris ebikes had a really nice thumb throttle but they are no longer producing ebikes. It was sensitive and had just enough resistance to make if very responsive at the same time. It's the best I've tried. I like grip throttles too but they make the grips a larger diameter which...
  19. K

    Confusion on trail rules?

    Not really sure how an ebike not being powered is different than a bike. I have always questioned the logic of class 1 and 2 being considered different for trail use considering how the drive system tech can really gray the distinction of what a PAS and throttle-assist ebike is. Regardless...
  20. K

    Will Ebikes become a fad in the US?

    Were they riding compliant ebikes?
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