I installed a bottle generator on the seatstay of one of my bikes, and have 
used it occasionally for the past few months.  I've used it for 30-40 miles on 
two different occasions with no problems.

It has been used in the rain with the standard rubber contact wheel. Haven't 
had the need to try out the wire brush "rain wheel" yet--I'm a little leery of 
that one, based on the warnings on Peter White's site about tearing up your 
tires if it's not adjusted properly.

I do like the fact that the bottle generator produces zero drag in the off 
position. The drag when on is barely noticeable--slightly higher than a dynamo 
hub, but a good tradeoff for me when factoring in the lack of drag for most of 
the ride.

--Eric

On Jul 15, 2012, at 1:40 PM, Steve Palincsar wrote:

> On Sun, 2012-07-15 at 14:35 -0600, PATRICK MOORE wrote:
>> Bottle dynamos are perfectly dependable if properly set up: their
>> defects lie rather in additional drag (but a good one is not hugely
>> bad), noise, complication of setup and slippage in wet weather.
> 
> You can add to the list the need to regularly check that the bolt
> establishing the angle at which the bottle dynamo is mounted has not
> come loose.  They often do, and when they do the angle shifts, the
> generator operates off-axis and quickly gets destroyed.  By contrast,
> there's nothing to check that often with a generator hub.
> 
> 
>> 
>> On Sun, Jul 15, 2012 at 10:08 AM, Will <waller.will...@gmail.com> wrote:
>> Dynamo hubs are a lot more dependable.
>>> 
>>> Will
>>> 
>> 
>> 
>> -- 
>> "Push back against the age as hard as it pushes against you."
>> 
>> Flannery O'Connor
>> 
>> -------------------------
>> Patrick Moore, Albuquerque, NM, USA
>> For professional resumes, contact Patrick Moore, ACRW
>> http://resumespecialties.com/index.html
>> -------------------------
>> 
> 
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