On Wed, 10 Aug 2016 18:43:23 +0100, Clive George wrote:

On 10/08/2016 18:19, David wrote:
On Wed, 10 Aug 2016 13:00:17 +0100, Clive George wrote:

On 10/08/2016 11:46, David wrote:
The standard ways a

a hub dynamo (ridiculously expensive considering I had one on my bike
in the 1960s) but this needs a wheel rebuild as well as the purchase
of the hub.

Is the right answer though.

The posh ones are expensive, but Shimano make some which are very
sanely priced.

http://www.bike-discount.de/en/shop/hub-dynamo-8865

20 euro. I wouldn't rebuild the wheel, as you'll need new spokes
anyway,
so factor in new spokes (16 quid from chain reaction) and rim (15 quid
or so?).

It'll give you the most reliable electricity supply on a bike. Pretty
much unnoticable when on too, unlike a bottle or a bottom bracket
generator. (the bottom bracket ones suffered from being in the worst
place for muck on a bike).

Apart from the question "why would I need a new rim" that sounds
sensible.
I can see that new spokes would be needed.

Because new rims aren't that expensive and it leaves you a complete
spare wheel.

However there is one minor issue - I was considering it for my Dutch
bike which has hub gears and brake at the rear, a hub brake at the
front, and so nowhere to fit a hub dynamo.

Which made me ponder.

Dyno-hubs are common on dutch bikes, complete with hub brakes :-)

http://www.ebay.co.uk/itm/Taylor-Whe...wheel-ZAC2000-
with-hub-dynamo-DH-3R35-silver-/231103011081?_trksid=p2141725.m3641.l6368

(they'll do a 28"/700c one too, you'll just need to look)

What sort of hub brake do you have?

Shimano Nexus with a bloody big lump of iron into a bracket on the frame
to stop it rotating.

I did look glancingly at the Shimano price for a combined dynamo and
brake, if I remember correctly, but I also seem to remember having to go
and lie down somewhere quiet for a bit afterwards.

Cheers


Dave R



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