Bicycle thread

Discussion in 'Sports' started by Zodiac, Jul 10, 2006.

  1. Ridge

    Ridge Jitenshado

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    Cool, I'll find you there. Mohican is on my to-do list of the NUE races next year.
  2. ducnut

    ducnut Long timer

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    You guys are just sick! :lol3
  3. Ridge

    Ridge Jitenshado

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    Come to the Dark side Ducnut... we have cookies!
  4. ducnut

    ducnut Long timer

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    :rofl

    I wouldn't want to hold ya' up! :thumb
  5. RxZ

    RxZ Legal Drug Dealer

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    Went riding with my new light last night. As the above comments say, this thing is bright! I only had one light, and attached it to my helmet, but I had very little trouble seeing the trail. I did get the actual MagicShine MJ-808E instead of one of the others, and it has the orange-peel reflector. Very bright spot beam, and then very even "scatter" light all around the spot.

    I rode for about 30 minutes, then used it for another 10 minutes or so loading everything back into the car. The indicator light on the back of the light was still in the "green" zone. I believe that means 100%-60% charge. Blue would be 60%-30%, then yellow down to 10%, then red until it dies. My local trail takes me about 45 minutes in full daylight, so since I am a little slower at night I still don't think I would drain the battery past one-half. Documentation says the light should last 3 hours at full charge, I would guess that is accurate based on my first use.

    Oh, I did see several deer and racoons in the woods. Their eyes really light up when the LED light hits them :eek1
  6. pierce

    pierce Aven'Tourer

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    on its first charge test, I only got about 1:45 on high. the light flashed twice, and I noted the tailcap LED had gone red, so I shut it off and recharged it. I'm doing a 2nd test now, its been on about 45 mins and is still green.
  7. TheNedster

    TheNedster Lurkapotamus

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    If it doesn't have some sort of thermal protection feature, use caution when running the light at full power while stationary. It can get hot enough to damage the internal circuitry.
  8. pierce

    pierce Aven'Tourer

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    the whole housing is aluminum with heatsink fins... it gets hot enough that its uncomfortable to hold but not burning hot, I'd estimate 120F or so, which is usually within the safe range for power semiconductors.

    I probably /should/ rig up a small fan to cool it while I'm doing these tests. its 67F or so in my living room, and I have it out in the open on top of a small wooden box, so there's plenty of convection airflow around it.

    my 2nd test gave warning flashes at 1:45, and the LED had gone red, so I shut it down and plugged it back in. I never did see a yellow phase, just green -> blue at about 55 mins, then red and blink-blink in about another 45 mins.
  9. Ridge

    Ridge Jitenshado

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    yeah, heat sink fins work much better when they have active airflow across them. :norton
  10. fullmonte

    fullmonte Reformed Kneedragger

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    Not to mention the fact that most of those miles between the real trails are just gravel fireroads with lots of elevation changes. The majority of the course comprises one of my favorite dualsport rides. Sometimes I will see riders on mtb's as I roost by and think they are :loco for riding those roads. Good luck on the training Ridge. I can't think of anything in the Triangle area (hill wise) that will properly prepare you for the Cohutta 100.
  11. ducnut

    ducnut Long timer

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    The warnings just keep getting better! :lol3
  12. pierce

    pierce Aven'Tourer

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    ok, charge/discharge test #3 on my $33 chinee XM-L T6 headlight...

    take battery off charger, plug in lamp.

    power on at 10:12pm ...
    still green at 11:00 (+48 mins)
    was blue at 11:05 (+53 mins)
    still blue at 11:52 (+1:40)
    BLINKED twice and turned RED at 11:54 (+1:42)
    still red and full brightness at 12:43 (+2:31)
    (switching off to get some sleep)


    so this thing is good for at LEAST 2.5 hours on high. my seat of the pants guestimate says low is half as bright (and still damn bright) so maybe 5+ hours on low?

    in the AM I'll switch it back on and see how much longer it runs til its noticeably fading or flashes again

    edit: k, its morning, I turned it back on at 8:40am, without recharging. I left the lamp plugged into the battery, so the red 'low battery' indicator LED was on all night....

    at 9:13am, it blinked twice, and now the red LED under the button is flashing. thats 3:04 total on time from when it was originally powered up.
  13. Ridge

    Ridge Jitenshado

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    I'm feeling the love... :lol3
  14. mud

    mud I just wander.....

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    A bunch of local guys have these and are really happy with them, and they are comparing them to halogens, HID's, and other LED's.

    They are so happy we have stopped development of our own lighting products..... NO way we could compete. If the batteries crap out early, I will probably offer a battery replacement service.:huh Other than that, China wins again.
  15. pierce

    pierce Aven'Tourer

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    this one, the battery is 4 18650's shrunkwrap. I figure if they crap out, I hit up Battery Junction, and get 4 more chinee 18650s, and rebuild the pack. catch-22, those batteries cost nearly as much as the light :huh

    p.s. 9:42, and its STILL running, so thats 3.5 hours so far. I think I'll shut this down and give the batteries a break

    so, when it goes to blue, you've got at least 2.5 hours left
    when it flashes and goes to red, you've got at least 1:45 left
    when it flashes again and the red starts blinking, you've got at least a half hour left on high. !!!
  16. Gummee!

    Gummee! That's MR. Toothless

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    Not quite 3hrs on primarily gravel roads just now. Ooof but my legs are tired. No hockey for me tonite!

    So we were riding along about an hour in to the ride when my buddy sez 'you should have told me about these rides. I would have ridden my Epic...' so I kicked him in his shin. I'd been trying to get him to go on the gravel rides with myself and another buddy for MONTHS. He didn't want to ride his Tarmac 'cause he didn't want to potentially do anything to it and didn't want to ride his Epic 'cause he was afraid he wouldn't be able to keep up. :2cry

    He's digging the gravel road riding. He didn't know how much he was missing till he got a cross bike and came out, but yet he refuses to think about cross racing. We've been trying to tell him how much fun it is... Ya think that if THIS is as much fun as we've been saying that maybe, just maybe racing cross is fun too?! :norton

    M
  17. Gummee!

    Gummee! That's MR. Toothless

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    Still no light, but its getting closer!

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    M
  18. CatfishRacing

    CatfishRacing Just a rider.

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    I ordered from Action LED yesterday and FedEx says it should be here tomorrow.
    Spent a little more but I'm OK with that.
  19. pierce

    pierce Aven'Tourer

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    so, if you have the cheap ebay magicshine /clone/ lamp (NOT the 'real' magicshine), and you get the actionLED spreader lens, as action tells you, the lens on the clone lamp is thicker than the spreader lens. I hit up the hardware store and poked around at o-rings. I found a 1-9/16ths" OD 3/32" thick O-ring is the right outside diameter exactly, but its about 1/32nd too thick. I think the perfect o-ring to replace the one on the clone lamp would be 1-9/16ths OD and 1/16th thick, or 39mm OD and 1.5mm thick. o-rings are often sold by their ID, so that would be 1-7/16" or 36mm.

    your mileage may vary. the spreader lens looks awesome in my livingroom, the beam is nice and wide now.
  20. YakSpout

    YakSpout Obstacle Allusion

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    I picked up that spreader, so I'll keep an eye out for the right o-ring. My light is still somewhere in China.

    Thanks for doing the legwork. :D