Recumbent bicycles · Public discussion

Hydrogen proposal

Started by Robert Haston · · Last activity · 43 posts · 3,406 views

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Recumbent bicycles
Published
13 March 2003
Last activity
23 March 2003
Original author
Robert Haston
Posts
43
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  1. thats it Gary get me all excited here

    Depends a lot on what bent you have, the mean temperature in your area and your weight (you and the
    bent)...(be specific).

    In general...E-Motors do get hot, but you can use elaborate heat sinks and fans to cool them down.
    Best to have a controller (outside) the motor. Use NiMH batteries to keep the weight down (less wear
    on the motor).

    Cannot say which unit is best without more details 1st.

    "Gary Truax" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    Michael,

    Thank you for your post.

    I do have a question for those of you that have power assist, will the electric style work in a
    very hilly area? I would continue to pedal on the long or extremely steep hills but would be
    concerned about overheating. One hill to work (this is where I would want to ride) is about .7 of
    a mile long and has an incline of probably close to 10% on average. Just guessing, I have about
    800 to 1000 feet of climbing in the 5.5 miles to work.

    Thanks in advance for your replies.

    Gary

  2. Joshua,

    Here goes with the details. I have a RANS Rocket, I weigh 155, the rocket weights about 29 without
    the motor and battery, I would probably carry another 5 pounds clothes food, etc. temperatures vary
    from 90 F to 10 F. I probably would not ride in lower temperatures. Several mornings the temperature
    is 20 to 40 and then in spring and summer it can be from 32 to 70.

    If you need more details, let me know.

    Thanks for all the input.

    Gary

    "Joshua Goldberg" <[email hidden]> wrote in message
    news:<[email hidden]>...

    Quoted message said:

    thats it Gary get me all excited here

    Depends a lot on what bent you have, the mean temperature in your area and your weight (you and
    the bent)...(be specific).

    In general...E-Motors do get hot, but you can use elaborate heat sinks and fans to cool them down.
    Best to have a controller (outside) the motor. Use NiMH batteries to keep the weight down (less
    wear on the motor).

    Cannot say which unit is best without more details 1st.

  3. the rocket has twin 406 wheels and therefore you will have a lower top speed, using a 451 rear wheel
    might add a mere1 mph. A Currie USPD (silver can) with a 19 tooth sproket will give you the hill
    climbing torque with minimal/moderate pedaling. The 406 wheel and lower number of teeth will give
    you the lower speed but higher torque you'll need for hills (with minimal stress on the 400 watt
    motor). Downside is your flat cruise speed will be down to 12 mph without pedal assist...but 12 mph
    is descent. IF you can get them, use Li-ion or NiMH batteries and store the pack into a seatback
    bag. Using the heavier SLAs could see you popping a wheelie. Nice thing about NiMH battery pack is
    it is lightweight enuff to carry off your bent and recharge where U work.

    A FWD Hub motor (might) work too, but the front weight would make steering a rocket risky in a
    turn...FWD Hubs tend to be very heavy. Hope it helps!
    -----------------------------------------------
    "Gary Truax" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    Joshua,

    Here goes with the details. I have a RANS Rocket, I weigh 155, the rocket weights about 29 without
    the motor and battery, I would probably carry another 5 pounds clothes food, etc. temperatures
    vary from 90 F to 10 F. I probably would not ride in lower temperatures. Several mornings the
    temperature is 20 to 40 and then in spring and summer it can be from 32 to 70.

    If you need more details, let me know.

    Thanks for all the input.

    Gary

    "Joshua Goldberg" <[email hidden]> wrote in message


    news:<[email hidden]>...

    Quoted message said:
    Quoted message said:

    thats it Gary get me all excited here

    Depends a lot on what bent you have, the mean temperature in your area


    and

    Quoted message said:
    Quoted message said:

    your weight (you and the bent)...(be specific).

    In general...E-Motors do get hot, but you can use elaborate heat sinks


    and

    Quoted message said:
    Quoted message said:

    fans to cool them down. Best to have a controller (outside) the motor. Use NiMH batteries to
    keep the weight down (less wear on the motor).

    Cannot say which unit is best without more details 1st.

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