Advertise on Bikeforums.net



User Tag List

Results 1 to 14 of 14
  1. #1
    dc pirate, 4evah. chimblysweep's Avatar
    Join Date
    Sep 2004
    Location
    seattle
    My Bikes
    several. blue. fun.
    Posts
    3,195
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Dynamo Questions

    So, I have the Schmidt's Original Nabendynamo hub. I love it, it's awesome. But, two questions...
    - taking the front wheel off. is there an easy way??
    - riding with the light off. Is it bad for the hub to have the light off when i'm riding?

    sorry for the dumb questions... thanks for your clever advice.

  2. #2
    Senior Member
    Join Date
    Jul 2005
    Location
    Mid-Atlantic
    My Bikes
    A bunch
    Posts
    891
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    1. Hex key?

    2. No.

  3. #3
    Has opinion, will express
    Join Date
    Jun 2003
    Posts
    11,705
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Replace the hex-release skewer with a standard front-wheel quick-release skewer. As to the terminals, I just pull the wheel out of the forks, and the terminals release themselves. It's a bit more fiddly getting the things back on (positioning of the hub terminals especially).

    And no to the second question as stated by CHenry. There is no circuitry in the hub, and there is no current flowing if you have the light off.

  4. #4
    Senior Member
    Join Date
    Jul 2006
    Location
    Modesto,California
    My Bikes
    Cannondale T600, Scattante R-660, Diamond Back Response Sport
    Posts
    147
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Here's another dynamo question....

    ... can you really get 30 minutes lighting after flipping off the Baush&Muller headlamps? I'm talking about with the generator off (such as standing the bike still with generator hubs). This thread seems to indicate that 30 minutes is possible, 15 minutes for sure...

    http://www.ihpva.org/pipermail/trike...q3/004303.html

  5. #5
    Formerly Known as Newbie Juha's Avatar
    Join Date
    Mar 2002
    Location
    Helsinki, Finland
    Posts
    5,183
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I've got the Lumotec Oval Plus headlight in my winter beater, with the standlight feature. I'd say 15 minutes is a good estimate after any decent amount of riding. 30 minutes may be stretching it a bit. The standlight dims after a while. You may have some sparkle left at 25-30 minutes, but I doubt it's enough to make any real difference to your visibility in traffic.

    As mentioned, I use it in winter. I don't know if it burns longer in warmer conditions.

    --J
    To err is human. To moo is bovine.

    Who is this General Failure anyway, and why is he reading my drive?


    Become a Registered Member in Bike Forums
    Community guidelines

  6. #6
    Has opinion, will express
    Join Date
    Jun 2003
    Posts
    11,705
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Unlikely. It is not battery powered, but relies on a capacitor that stores charge to a certain level. The standlight remains on all the time the dynamo is operating, of course, but when the dyno stops, the capacitor takes over. I suppose there might be minor variations in the capacitor's charge level. My old and now defunt Ovalpluses gave 10 to 15 minutes of LED light.

  7. #7
    Banned
    Join Date
    Aug 2005
    Posts
    5,117
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I'm assuming by now there is a dyno hub that runs all LED, is there any improvement in drag efficiency?

  8. #8
    Super Moderator Allen's Avatar
    Join Date
    Sep 2005
    Location
    Atomic batteries to power; turbines to speed
    My Bikes
    Salsa La Raza, Panasonic Electric, Bria, Bamboo touring, Bamboo cargo
    Posts
    4,670
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Juha
    I've got the Lumotec Oval Plus headlight in my winter beater, with the standlight feature. I'd say 15 minutes is a good estimate after any decent amount of riding. 30 minutes may be stretching it a bit. The standlight dims after a while. You may have some sparkle left at 25-30 minutes, but I doubt it's enough to make any real difference to your visibility in traffic.

    As mentioned, I use it in winter. I don't know if it burns longer in warmer conditions.

    --J
    I also have the B&M Oval Plus, I agree about 15 minutes is about as long as the standlight lasts, summer or winter.

    --A
    Quote Originally Posted by unterhausen
    I believe that in this case "solid meh" means "so 'meh' that it could never be anything more than 'meh', and yet also no less than 'meh' -- in a word, exactly 'meh'"

  9. #9
    dc pirate, 4evah. chimblysweep's Avatar
    Join Date
    Sep 2004
    Location
    seattle
    My Bikes
    several. blue. fun.
    Posts
    3,195
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    on the first question, sorry, shoulda been more specific. I like not having QR - i ride in a city and prefer the allen wrench bolt attachment. The question is whether there's a trick that makes disconnecting and reconnecting the hub faster.

    wow, 15 min of light! i haven't needed the standlight feature yet, but it's good to know the oval plus will do it for me when i need it. thanks for the answer on running witht he light off... which i'll do now!

  10. #10
    Formerly Known as Newbie Juha's Avatar
    Join Date
    Mar 2002
    Location
    Helsinki, Finland
    Posts
    5,183
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Peterpan1
    I'm assuming by now there is a dyno hub that runs all LED, is there any improvement in drag efficiency?
    Busch and Mueller have a full line of LED units (in addition to their halogen lights) in their product catalogue. And Peter White has a discussion about their differences, but no mention to drag (scroll down to maybe halfway through the page).

    --J
    To err is human. To moo is bovine.

    Who is this General Failure anyway, and why is he reading my drive?


    Become a Registered Member in Bike Forums
    Community guidelines

  11. #11
    Senior Member thomson's Avatar
    Join Date
    Dec 2003
    Posts
    3,332
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by chimblysweep
    <snip>
    wow, 15 min of light! i haven't needed the standlight feature yet, but it's good to know the oval plus will do it for me when i need it. thanks for the answer on running witht he light off... which i'll do now!
    I have the Lumotec as well. That 15 minutes of standby light is not the same as the generated light. It is a different bulb, an LED. It is bright enough to be seen and even some map reading. I think it is a very worthwhile feature.

  12. #12
    dc pirate, 4evah. chimblysweep's Avatar
    Join Date
    Sep 2004
    Location
    seattle
    My Bikes
    several. blue. fun.
    Posts
    3,195
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    so... umm...
    i tried to attach the taillight, and i think i might have done it wrong, because now neither light works.

    (i knew i should have stuck with my track bikes. i feel like an idiot at this stuff!)

    thus, i give you MORE dumb questions, like...
    could i blow a bulb- or the hub?!?!- by hooking the taillight up wrong?
    the headlight's a lumotec that has four copper doohickeys under the lamp. i assumed you just hook the two tail light attachments up there, but i'm wrong i guess...anyone?

    geez. how embarassing.

  13. #13
    Senior Member eibeinaka's Avatar
    Join Date
    Sep 2005
    Location
    Tokyo, Japan
    My Bikes
    Surly LHT
    Posts
    152
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    One of the connections for the taillight has to be on one of the top copper doohickeys, and the other on the lower one on the same side.At the headlight end I have the black cable on top, the black-and-white one on the lower one. This is on the doohickeys on the right.


    From the front of the bike looking at the back of the taillight, the black cable goes to the right, the black-and-white one to the left.

    This works perfectly on mine!

    I pretty much tried every combination to get it right,and didn't blow a single thing.
    Last edited by eibeinaka; 09-25-06 at 08:54 PM.

  14. #14
    Senior Member
    Join Date
    Jul 2005
    Location
    Mid-Atlantic
    My Bikes
    A bunch
    Posts
    891
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Peterpan1
    I'm assuming by now there is a dyno hub that runs all LED, is there any improvement in drag efficiency?
    I have a Schmidt running an LED; no different than for a halogen setup as far as rolling resistance goes.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •