I’ve never gotten them muddy, but I know they work in the wet. The lights work better the closer they are to the rim, so I keep mine about 2-3mm away. I suppose if you started building up mud on the rim, the lights might work to scrape it off?
Note that you need to be going a few mph for the lights to start working (a little faster than with a typical dynamo hub), so if you’re doing slow-speed offroad riding in the mud these probably aren’t the best lights for you in the first place. P.S. My Magnic setup includes a pair of headlights (one on each side of the from wheel), a Magnic taillight, and a helmet-mounted light (I like the Exposure Lights ‘Joystick’ model). I’ve done a lot of night riding like this, including a 400K that finished well into the night. --Eric Norris [email protected] www.campyonly.com campyonlyguy.blogspot.com > On Nov 9, 2015, at 11:23 AM, Philip Kim <[email protected]> wrote: > > pun was not intended... > > > On Monday, November 9, 2015 at 2:22:16 PM UTC-5, Philip Kim wrote: > Eric, > > Thanks for shedding light via your personal experience. > > How do the magnetic lights do in rain/mud. It seems like it has to be close > to the rim in order to generate the magnetic force to turn the generator > inside the light, but is there any safety risks to being so close to the rim? > > > > On Monday, November 9, 2015 at 1:51:25 PM UTC-5, Eric Norris wrote: > The lights have a rotating ring of small, very strong magnets in them, which > think are somehow turning in response to the wheel going by them, but I’m not > sure. > > As I said, in the real world, on real bikes, I can’t feel any kind of drag > from these lights. My guess is that they’re much more efficient than a > standard hub or bottle generator, which has much larger physical parts that > are rotated by the motion of the bike and, in the case of a bottle generator, > friction between the tire and the generator. The drag must be measurable, but > it’s not perceptible to me. > > Hold up the front wheel on a Magnic-equipped light and spin it … it just > spins, like the lights weren’t there. Even a very efficient hub generator, > with the lights off, doesn’t spin as easily. > > --Eric Norris > [email protected] <> > www.campyonly.com <http://www.campyonly.com/> > campyonlyguy.blogspot.com <http://campyonlyguy.blogspot.com/> >> On Nov 9, 2015, at 10:30 AM, Curtis McKenzie <[email protected] <>> wrote: >> >> So true, not friction. >> >> However, work must be done to induce a current. What object is doing the >> work? >> >> http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html >> <http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html> >> >> Curtis "where friction is is not work" McKenzie >> >> On Mon, Nov 9, 2015 at 10:19 AM, Eric Norris <[email protected] <>> wrote: >> This looks like it works on the same principle as the Magnic Lights, which >> I’ve been using for several years. Magnic just came out with Ver. 2 of their >> product, which added new circuitry for a steadier and brighter light. >> >> No friction!? Absolutely true. There is no contact between the Magnic light >> and the bike, other than the mount. The system generates energy from the >> motion of the (alloy or steel) rims passing by the light. >> >> I have one of the new headlights, but I haven’t had time to use it. The >> first gen lights aren’t nearly as bright as, say, an Edelux, but for me >> they’re certainly bright enough to ride with. They’re also always on, adding >> the benefit of daytime running lights. >> >> Despite the protests of skeptics, I would say that the lights have no effect >> on the bike’s speed. If there is, I can’t feel it. Yes, you don’t get >> something (light) for nothing, but the Magnic Lights come very, very close. >> >> P.S. The inventor of the Magnic Light is currently fighting several patent >> battles with other companies using the “eddy technology.” This might be one >> of them. >> >> P.P.S. Magnic Lights are available in the USA from Clever Cycles in Portland >> OR. >> >> --Eric Norris >> [email protected] <> >> www.campyonly.com <http://www.campyonly.com/> >> campyonlyguy.blogspot.com <http://campyonlyguy.blogspot.com/> >>> On Nov 9, 2015, at 10:02 AM, Curtis McKenzie <[email protected] <>> wrote: >>> >>> Neo Light >>> >>> No friction? Interesting. Grin. >>> >>> Curtis "cannot get something for nothing" Mckenize >>> >>> On Mon, Nov 9, 2015 at 9:29 AM, dstein <[email protected] <>> wrote: >>> I got a little liquored up and backed a few too many kickstarter projects >>> the other night: >>> https://www.kickstarter.com/projects/1651132789/neo-worlds-most-powerful-friction-free-bikelight >>> >>> <https://www.kickstarter.com/projects/1651132789/neo-worlds-most-powerful-friction-free-bikelight> >>> >>> This looks cool but looks like it is just meant for city riding? Not a lot >>> of info on the site about brightnewss. Either way, I don't want to spend >>> the time and money on a dedicated dyno set so we'll see how this turns out. >>> Will write up on it when I have it >>> >>> >>> >>> >>> >>> >>> >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "RBW Owners Bunch" group. >>> To unsubscribe from this group and stop receiving emails from it, send an >>> email to [email protected] <>. >>> To post to this group, send email to [email protected] <>. >>> Visit this group at http://groups.google.com/group/rbw-owners-bunch >>> <http://groups.google.com/group/rbw-owners-bunch>. >>> For more options, visit https://groups.google.com/d/optout >>> <https://groups.google.com/d/optout>. >>> >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "RBW Owners Bunch" group. >>> To unsubscribe from this group and stop receiving emails from it, send an >>> email to [email protected] <>. >>> To post to this group, send email to [email protected] <>. >>> Visit this group at http://groups.google.com/group/rbw-owners-bunch >>> <http://groups.google.com/group/rbw-owners-bunch>. >>> For more options, visit https://groups.google.com/d/optout >>> <https://groups.google.com/d/optout>. >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "RBW Owners Bunch" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <>. >> To post to this group, send email to [email protected] <>. >> Visit this group at http://groups.google.com/group/rbw-owners-bunch >> <http://groups.google.com/group/rbw-owners-bunch>. >> For more options, visit https://groups.google.com/d/optout >> <https://groups.google.com/d/optout>. >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "RBW Owners Bunch" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <>. >> To post to this group, send email to [email protected] <>. >> Visit this group at http://groups.google.com/group/rbw-owners-bunch >> <http://groups.google.com/group/rbw-owners-bunch>. >> For more options, visit https://groups.google.com/d/optout >> <https://groups.google.com/d/optout>. > > > -- > You received this message because you are subscribed to the Google Groups > "RBW Owners Bunch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > <mailto:[email protected]>. > To post to this group, send email to [email protected] > <mailto:[email protected]>. > Visit this group at http://groups.google.com/group/rbw-owners-bunch > <http://groups.google.com/group/rbw-owners-bunch>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
