Simon Cooper said:I'm in the market for some lights for my wife's bike. She rides a
reasonably short 4 mile ride home each night, mostly strretlit and mostly on
good roads. Once in a while we take another parallel unlit, worse road,
where she struggles to spot the bumpy patches/ice/whatever at the same kind
of light levels I can cope with. Nothing too bad.
Conceptually she likes the idea of dynamo lighting, it's always there on the
bike and doesn't eat batteries, but she'd also be amenable to charging a
pack for something like a light and motion Vega (is there a tail light
available for that?)
Looking to spend $40-$80. So considering the Union dynamos that QBP carry,
Sigmasport ellipsoid, Night Rider Road Rat, Nite Hawk Nomad, Andy Muzi's
cheap Indian dynamos... I've found dynamo drag to be significant on some
bikes in the past. But fancy rechargeable systems aren't quite as
convenient, and many seem to lack a rear.
Noticed Target now have a Scwinn branded dynamo set for $9.99. It looks
very similar to the cheap WalMart one I put on our tandem, which gives
adequate light...
Any opinions welcome.
I recall you asked about generator sources a few days ago. I didn't
have time to dig them out back then, but here you go:
In addition to The Third Hand (and others) as a source for the Union
set http://tinyurl.com/86a34
and The Yellow Jersey (whose website seems to be down today) you can
find generators at http://www.bikelite.com/RAKN5RK.htm Although I
have no firsthand knowledge, ISTR someone posting here that they were
satisfied with that product. However, I'd prefer one with a separate
headlamp, both because you can learn online about the optics of various
recognized headlamps, and it's important to be able to adjust the
orientation of the headlamp separate from the orientation of the
generator. I'd also stick with the 6 volt, 2.4 watt (or 3 watt)
halogen bulbs so you can get good light and use standard replacement
bulbs. I'd ask about whether the bulbs are flange type or threaded.
(Reflectalite is a good source of bulbs:
http://www.reflectalite.com/index.html )
St. John's Cycles in Britain has a great selection.
http://www.sjscycles.com/store/vIndex.htm?cat208.htm
I haven't ordered from them, but I've ordered other stuff from Britain.
It doesn't seem to matter that an ocean is in the way. (The AXA has a
reputation for being quite good at a low price, last I heard. Early
ones had problems with shafts rusting and locking up, but supposedly
they switched to stainless steel and solved that.)
Also, Harris Cyclery has Shimano hub units. They're more expensive and
more trouble due to the wheel build, but perhaps worth considering
http://sheldonbrown.com/harris/lighting/shimano.html
They also have two Dymotechs (one very expensive) at
http://harriscyclery.net/itemdetails.cfm?id=1580
There are some bike shops in the US that carry generators. I've found
them in old neighborhood shops (where I've gotten them cheap, as NOS
merchandise) and I've seen them for sale in utility-oriented shops (as
opposed to trendy-racy shops). As an example, Citybikes in Portland,
OR caters almost exclusively to transportational cyclists, and has new
and used generators and lights. http://www.citybikes.coop/lights.htm
And interestingly, I once stumbled upon a bike shop in an Amish area
that had a great assortment of lights, including generators.
Finally, in case you haven't seen it, this is a good source of info on
generators: http://www.myra-simon.com/bike/dynotest.html
Oh, and regarding the cheap Target unit: I put a similar generator on
the bike of a novice bike commuter. I did change the vacuum bulb for a
halogen. I was quite impressed. The optics were surprisingly good,
perfectly suitable for her city commute, and the generator is still
working well about three years later. (Of course, we don't know that
_all_ cheap generators are good.)
Hope this helps. Good luck.
- Frank Krygowski