Dynamo light compatibility: hub vs bottle
11-14-17 | 11:30 AM
#26
aka Tom Reingold
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From: New York, NY, and High Falls, NY, USA
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
How did you evaluate this? When you turn the axle with your hand, it feels terrible. When you suspend the bike and spin the wheel, it seems only slightly draggy. When you ride the bike with over 100 lbs of inertia, the drag is imperceptible.
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Tom Reingold, tom@noglider.com
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Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog
“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
11-16-17 | 09:22 AM
#28
aka Tom Reingold
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From: New York, NY, and High Falls, NY, USA
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
That question came up recently. Someone pointed out why it might not work, but I'll be darned if I can remember the explanation.
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Tom Reingold, tom@noglider.com
New York City and High Falls, NY
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“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog
“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
11-16-17 | 03:54 PM
#29
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From: Minneapolis, MN
Sometimes they make a dc current model for electric bikes.
But there's no real reason to do that as nowadays they also sell battery versions. The Ixon Iq Space is B&M's version:
B&M Ixon Space - cutoff, built in lith-ion battery, 150 lux (not lumens)
The Lupine SL A4 is a brighter light with a cutoff and an external battery pack:
B&M Ixon Space - cutoff, built in lith-ion battery, 150 lux (not lumens)
11-18-17 | 02:26 PM
#31
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[Quoting the company websites] DC lights now, are for electric bikes ... they wire to the battery that makes the motor power the bike..
& No On/Off switch on the bottle dynamo versions of Lights
....
& No On/Off switch on the bottle dynamo versions of Lights
....
Last edited by fietsbob; 11-19-17 at 11:09 AM.
11-19-17 | 10:17 AM
#32
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11-19-17 | 10:42 AM
#33
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Internet gotcha? DC is DC [Edison promoted DC, Tesla was working with AC]
I made one 30 years ago for halogen headlight bulbs. & incandescent tail light 5 D Ni Cad rechargeable batteries (1.2v x 5 =6v)
.. but nobody in marketing was selling that as a feature..
Good luck with your creative solutions.
I made one 30 years ago for halogen headlight bulbs. & incandescent tail light 5 D Ni Cad rechargeable batteries (1.2v x 5 =6v)
.. but nobody in marketing was selling that as a feature..
Good luck with your creative solutions.
Last edited by fietsbob; 11-19-17 at 10:48 AM.
11-23-17 | 03:29 PM
#34
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From: Madison, WI
Bikes: 1961 Ideor, 1966 Perfekt 3 Speed AB Hub, 1994 Bridgestone MB-6, 2006 Airnimal Joey, 2009 Thorn Sherpa, 2013 Thorn Nomad MkII, 2015 VO Pass Hunter, 2017 Lynskey Backroad, 2017 Raleigh Gran Prix, 1980s Bianchi Mixte on a trainer. Others are now gone.
Back to the original question, difference between bottle and hub lights ...
Usually the lights that are made for bottle dynamos do not have a switch because you can disconnect them from the wheel to turn them off. I picked up a couple several years ago on a clearance sale, I used them on a hub but with no switch I just left them on. I later bought a lamp with USB charger, thus no longer use teh old bottle lamps.
If you might buy a hub later, you might want to get the lamp now that has a switch to use with the hub later. But, since I can't feel any drag from my hub, I often just leave the lights on since it will not hurt anything.
Or, since the lamps get better and brighter every year, buy a cheap one now and a better one later if you buy a hub later.
In building my winter commuter bike I am thinking of adding dynamo lighting, and am interested in trying a new bottle style dynamo like the AXA HR (to test the waters without committing to a new wheelbuild). I live on an unlit country road and need a relatively bright headlight so I'm looking at the newer B+M high output lights. Are there different lights for hub dynamos and bottle dynamos or are they all interchangeable? I think it would be smart to buy good lights and if I feel the need to later upgrade to a hub dynamo, but I don't want to fry some expensive light because I used it with a bottle dynamo.
If you might buy a hub later, you might want to get the lamp now that has a switch to use with the hub later. But, since I can't feel any drag from my hub, I often just leave the lights on since it will not hurt anything.
Or, since the lamps get better and brighter every year, buy a cheap one now and a better one later if you buy a hub later.
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