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  1. #1
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    Sanyo Sidewall Dynamo LED Unit

    My wife brought me a present from Japan, admittedly one I asked for:



    The Japanese on the packaging is about how this unit is wonderfully light, bright, quiet, and has low rolling resistance.



    My inaccurate postal scale puts it at 8-9 oz. It has 4 LED's - three are for the main light, the fourth is a yellow blinky standlight visible from the side as well:



    Just rolling it back and forth with my hand it seems to live up to the hype on the packaging - it is very smooth, quiet, low resistance and at that speed clearly lights up a darkened room. Ten seconds of rolling or so gets the blinky standlight going for at least a minute or two.

    The big question now is how to mount this on a bike with cantis and Nitto M12 mini-rack.



    The dynamo unit has to contact the front wheel ahead of the rack strut, which means the whole unit has to go in front of the strut. The light portion can be adjusted up and down.

    I'm a little concerned about having something cantilevered way out front like that, esp. since I routinely ride on unpaved roads/paths.

    I foresee an afternoon of hacking around with an old union bottle dynamo mount designed for rear chainstay position that I have around. The light unit is easily separable from the dynamo unit, so I could mount the light in the strut mount and then have a little more latitude in mounting the dynamo.

  2. #2
    no one cares -holiday76's Avatar
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    i want one.
    Mmmm, bicycles.

    I prefer emails to private messages - holiday76@gmail.com

  3. #3
    WNG
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    Mount the dynamo behind the fork blade, the lamp between the fender and rack...out front.
    “You meet the nicest people on two wheels!"
    "Learn from yesterday, live for today, hope for tomorrow." ~Albert Einstein

  4. #4
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    Quote Originally Posted by -holiday76 View Post
    i want one.
    Here you go. I have no idea what the shipping would be to the U.S. In principle, the Rakuten vendors who allow their stuff on the english site are supposed to at least be willing to ship internationally.

  5. #5
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    Quote Originally Posted by WNG View Post
    Mount the dynamo behind the fork blade, the lamp between the fender and rack...out front.
    Only thing about that is that if the mount comes loose and the unit contacts the wheel, the wheel direction tends to drive the dynamo in the fork direction with possibly bad consequences, like jamming the wheel, etc. Out front seems a little safer. I dunno, though, might be more of a hypothetical concern than a real one. I'm pretty diligent about getting everything tightened up and lock/star washered well and very rarely have stuff work loose. Bracket mounts on something like that might be one of the cases for loctite on a bike.

    Otherwise, though, that would be a clean solution.

  6. #6
    aka Tom Reingold noglider's Avatar
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    Quote Originally Posted by -holiday76 View Post
    i want one.
    I want three!
    Please email me rather than sending me a private message. My address is noglider@pobox.com

    Tom Reingold
    Residences: West Village, New York City and High Falls, NY
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  7. #7
    Senior Member southpawboston's Avatar
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    Could you fabricate a flat stainless steel strip that mounts to the left canti stud, then extends down and twists 90 degrees? Much like many modern rear rack stays. That would approximate the position where a brazed on sidewall dyno mount would be.

  8. #8
    no one cares -holiday76's Avatar
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    Oh perfect! this is from the website selling this:

    http://global.rakuten.com/en/store/k...2_016_nh-v68a/

    If you are bike lights that light up the tires rub,
    "What I do have a bright white and auto light."
    Have you ever, do you? ?
    Blocks beyond the common sense of a dynamo!
    Wright came out great! !
    Provide white glare!


    Low-load dynamometer
    Approximately 30% lighter than conventional rotary torque ●, sticky and reduces the weight of the pedal paddle


    -------

    I've can totally relate to all of this. This sounds great and it's exactly what I've been looking for. I'm ordering one now.
    Mmmm, bicycles.

    I prefer emails to private messages - holiday76@gmail.com

  9. #9
    no one cares -holiday76's Avatar
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    I'm not so sure I want one now. this sounds serious..

    "Upheaval in the bright white LED light type lamp for light rubbing front bike tire!"
    Mmmm, bicycles.

    I prefer emails to private messages - holiday76@gmail.com

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    Quote Originally Posted by -holiday76 View Post
    Oh perfect! this is from the website selling this:

    http://global.rakuten.com/en/store/k...2_016_nh-v68a/

    If you are bike lights that light up the tires rub,
    "What I do have a bright white and auto light."
    Have you ever, do you? ?
    Blocks beyond the common sense of a dynamo!
    Wright came out great! !
    Provide white glare!


    Low-load dynamometer
    Approximately 30% lighter than conventional rotary torque ●, sticky and reduces the weight of the pedal paddle


    -------

    I've can totally relate to all of this. This sounds great and it's exactly what I've been looking for. I'm ordering one now.
    Ugh, now you've gone and reminded me what my Japanese sounds like to people in Japan

  11. #11
    no one cares -holiday76's Avatar
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    Quote Originally Posted by robatsu View Post
    Ugh, now you've gone and reminded me what my Japanese sounds like to people in Japan
    it's just a really bad translation service. I don't think a specific person is to blame for this, a piece of software did it.

    Anyway, I really would like one of these but I can't seem to navigate the checkout process.
    Mmmm, bicycles.

    I prefer emails to private messages - holiday76@gmail.com

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    Quote Originally Posted by -holiday76 View Post
    it's just a really bad translation service. I don't think a specific person is to blame for this, a piece of software did it.

    Anyway, I really would like one of these but I can't seem to navigate the checkout process.
    Sorry, can't help you there. Every now and then when I find something on rakuten, usually on the Japanese domestic site, I just give the link to my (Japanese in Japan) wife and try to sweet talk her into buying it. So I don't really know what happens after that step. I do know it is one of the biggest commerce aggregating sites in all of Japan.

    FWIW, my wife has been doing the same to me for years whenever we need to call the bank, gas company, etc, in the U.S. and straighten something out.

  13. #13
    no one cares -holiday76's Avatar
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    Quote Originally Posted by robatsu View Post
    Sorry, can't help you there. Every now and then when I find something on rakuten, usually on the Japanese domestic site, I just give the link to my (Japanese in Japan) wife and try to sweet talk her into buying it. So I don't really know what happens after that step. I do know it is one of the biggest commerce aggregating sites in all of Japan.

    FWIW, my wife has been doing the same to me for years whenever we need to call the bank, gas company, etc, in the U.S. and straighten something out.
    i'm actually surprised something like this doesnt exist elsewhere. and LED sidewall dynamo that is. I'm interested to hear how it performs, then I can worry about translations and so forth. i've got that covered too via my Japanese family friend.
    Mmmm, bicycles.

    I prefer emails to private messages - holiday76@gmail.com

  14. #14
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    Quote Originally Posted by -holiday76 View Post
    i'm actually surprised something like this doesnt exist elsewhere. and LED sidewall dynamo that is. I'm interested to hear how it performs, then I can worry about translations and so forth. i've got that covered too via my Japanese family friend.
    Well, in Japan, virtually every bicycle, even the kids ones, has a light on it, so the market is a lot larger, lots more products there. Then on top of that, the product liability situation is a lot more dire in the U.S., so for lots of vendors, the relatively small number of sales isn't worth the hassle of product liability insurance, U.S. product safety regs, etc.

    This isn't speculation, I know this for a fact having worked w/some others trying to import some similar stuff a few years back. A lot of these Japanese domestic market cycling products, they won't let their online retailers sell/ship to the U.S. either for the same reason.

  15. #15
    WNG
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    Hmmm, I understand your concern. Probability of it happening is low with your build quality level. But accidents can happen as you so well know. The chainstay/BB mount is the safest bet. Are you thinking of it rolling on the tread or tire wall?

    Btw, it is a very cool light.

    It sounds like a call to Dawes-Man for a group buy!
    “You meet the nicest people on two wheels!"
    "Learn from yesterday, live for today, hope for tomorrow." ~Albert Einstein

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    Quote Originally Posted by WNG View Post
    Hmmm, I understand your concern. Probability of it happening is low with your build quality level. But accidents can happen as you so well know. The chainstay/BB mount is the safest bet. Are you thinking of it rolling on the tread or tire wall?
    Sidewall

  17. #17
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    That appears to be designed for mounting on the right side. I did not see a bracket for mounting it onto the front fork in the package that you showed. Block generators have been around for ages (but not for LED's). The preferred mounting was a braze-on for the front fork like this

  18. #18
    Senior Member Fletch521's Avatar
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    Quote Originally Posted by -holiday76 View Post
    I'm not so sure I want one now. this sounds serious..

    "Upheaval in the bright white LED light type lamp for light rubbing front bike tire!"
    my tire wants one...

  19. #19
    Senior Member CMC SanDiego's Avatar
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    Quote Originally Posted by robatsu View Post
    Here you go. I have no idea what the shipping would be to the U.S. In principle, the Rakuten vendors who allow their stuff on the english site are supposed to at least be willing to ship internationally.
    I may have to get one of these also. I love the way they direct translate their adds into English. (edit, I just saw the similar post above, I guess I'm no the only one who found the site confusing and amusing at the same time).

    (concerning the standlight feature) "While waiting for the signal "We are here to bike." Appeal around and made safe."
    "30% lighter than conventional rotary torque" "sticky and reduces the weight of the pedal paddle!"

    I spent a summer years ago in Japan with my brother (who still lives in Kawasaki) and remember seeing an advertisement for a bowling alley in the subway station that said "Let's play bowling!". My favorite was a sign on a low stairway ceiling in Nagoya Castle that said for all the English speaking tourists "WATCH OUT YOUR HEAD!"

    Of course I brought home some shirts with random Japanese characters on them because they looked so cool. They probably said something like "I'm an idiot who can't even read this shirt I bought" (except I think the Japanese are way to proper to put that on a shirt and sell it to unsuspecting tourists).
    Last edited by CMC SanDiego; 09-02-11 at 07:07 PM. Reason: commentary

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    Well, I think I'm going to think about the mounting for a while. Couple options in play. The block unit separates nicely, so I do have the option of mounting the bottle where convenient and the light where effective. I probably will go with the bottle mounted behind the fork on the left side w/a spanninga fork mount and the light somehow hung from the the rack light mount on the right side.

    That is, unless something better presents itselff while I"m futzing around in the garage.

  21. #21
    Senior Member southpawboston's Avatar
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    Quote Originally Posted by robatsu View Post
    Well, I think I'm going to think about the mounting for a while. Couple options in play. The block unit separates nicely, so I do have the option of mounting the bottle where convenient and the light where effective. I probably will go with the bottle mounted behind the fork on the left side w/a spanninga fork mount and the light somehow hung from the the rack light mount on the right side.

    That is, unless something better presents itselff while I"m futzing around in the garage.
    If you have an old caliper brake lying around, you can file one of the arms into a light mount:

    Last edited by southpawboston; 09-02-11 at 09:39 PM.

  22. #22
    aka Tom Reingold noglider's Avatar
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    CMC San Diego, have a look at http://www.engrish.com

    I've been a fan for years.
    Please email me rather than sending me a private message. My address is noglider@pobox.com

    Tom Reingold
    Residences: West Village, New York City and High Falls, NY
    Employer: Larry's Freewheeling, 301 W 110 St, New York, NY 10026
    Blogs: The Experienced Cyclist; noglider's ride blog

  23. #23
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    Quote Originally Posted by southpawboston View Post
    If you have an old caliper brake lying around, you can file one of the arms into a light mount:

    That is pretty cool. Basically, I never throw nothing away in the event a need like this arises. That give me some ideas...

  24. #24
    Senior Member southpawboston's Avatar
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    Quote Originally Posted by robatsu View Post
    That is pretty cool. Basically, I never throw nothing away in the event a need like this arises. That give me some ideas...
    This one is attached to a VO front rack with an M5 bolt, but it should work equally well on that Nitto M12 of yours which has the strut-mounted M6 threaded eyelet. It's also more stable than any of the brackets sold by Rivendell or VO. Several hundred miles of dirt road and trail riding, and it hasn't flinched. The flush-mounted jack is for charging a portable electronic device.
    Last edited by southpawboston; 09-02-11 at 09:58 PM.

  25. #25
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    Quote Originally Posted by noglider View Post
    CMC San Diego, have a look at http://www.engrish.com

    I've been a fan for years.
    I've been going back and forth between the U.S. and Japan for 30 years now. I still get entertained by all the engrish, but it is a lot more tempered in recent years by my awareness that Japanese folks find my japlish attempts similarly amusing. This starts at home with my wife and Japanese-fluent 7yo boy.

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