Just ordered a hub dynamo online

Lou Holtman wrote:
James wrote:
My poor ol' Sanyo Dynapower is getting a bit long in the tooth. The
bearings and bushes are wearing out. It makes a bit more noise than
it used to, despite me lubricating the moving parts. I suspect it's
days are numbered.

So I ordered a PV-8
http://www.sp-dynamo.com/8seriesdynamo%20hub.html from the UK.
Don't expect an Australian supplier to have something like this, or
if it is available locally it's sure to be double the price! 90 GBP,
minus VAT, plus shipping made it 86 GBP = 146 AUD.

It seems to be reasonably light, has sealed bearings, and "class
leading" efficiency and performance. I've also read that the
vibrations are minimal.

So when it arrives I'll order some spokes to build a wheel using one
of my 2 Mavic OpenPro Ceramic rims - the one that's currently laced
to the Mavic hub. The other is laced to a Miche hub, that I
currently use every time I go for a ride. It'll become the daylight
only spare wheel.

The flange looks pretty beefy. I hope it can take a radial spoke
pattern, so I can have a pair of front wheels with radial spokes. I
just like the look, and provided the hub can handle it, see no need
to cross the spokes.

Congratulations, you won't regret it. Dark season is coming here soon
so I put my dynohub wheel in my recently Rohloff hubbed winterevening
bike this weekend and was curious about the weight of that bike now
with all that 'heavy' stuff so I hung in on a scale:

http://lh3.googleusercontent.com/-BE...k/IMG_2177.JPG

http://lh5.googleusercontent.com/-VI...k/IMG_2181.JPG

I can live with that.

A very pretty cycle. Is that a Litespeed ti cyclocross frame? And how did
you arrange the chain tensioning? I can only think of an eccentric bottom
bracket or good luck with chainstays just the right length.

I count seven bicycles in the picture including the Litespeed though I might
have got confused trying to count wheels. Are they all yours? If it's not
too much trouble can you tell us something about them?
PH

On 17/09/13 07:11, Andre Jute wrote:
On Monday, September 16, 2013 6:58:16 AM UTC+1, James wrote:
My poor ol' Sanyo Dynapower is getting a bit long in the tooth.
The

bearings and bushes are wearing out. It makes a bit more noise
than it

used to, despite me lubricating the moving parts. I suspect it's
days

are numbered.


In theory, that Dynapower is serviceable with a kit Shimano lists (or
used to list) for the early Shimano hub dynamos, which were just the
Dynapower in a new dress. Of course, you couldn't find a dealer with
stock of the service kit, because a new Shimano hub dynamo of a newer
design, completely built into a wheel with a quality rim and quality
spokes, was available from the discounters for only about a third
more than the service kit. The same was true of the hub gearboxes
though I found one dealer (Petra Cycles in the UK) with stock of the
service kit.

Shimano might have a service kit for theirs, but mine is a Sanyo roller
dynamo. Completely different beast.

http://www.flickr.com/photos/5510267...n/photostream/

--
JS

On 17/09/13 07:42, Lou Holtman wrote:
James wrote:

So I ordered a PV-8 http://www.sp-dynamo.com/8seriesdynamo%20hub.html
from the UK. Don't expect an Australian supplier to have something like
this, or if it is available locally it's sure to be double the price!
90 GBP, minus VAT, plus shipping made it 86 GBP = 146 AUD.


Congratulations, you won't regret it. Dark season is coming here soon so I
put my dynohub wheel in my recently Rohloff hubbed winterevening bike this
weekend and was curious about the weight of that bike now with all that
'heavy' stuff so I hung in on a scale:

http://lh3.googleusercontent.com/-BE...k/IMG_2177.JPG

http://lh5.googleusercontent.com/-VI...k/IMG_2181.JPG

I can live with that.



Nice! Only thing I don't get along with is the flat bars. I haven't
found them comfortable, but that's personal preference.

Is there a rear brake? Not that I use rear brakes normally, but there
are times when it's nice to be able to control your speed gently with
the other hand.

It's just getting lighter here, but I'll still need lights to ride after
work for a while. I hope my old dynamo lasts this year out, while I
build a replacement system in my spare time.

--
JS

On Monday, September 16, 2013 6:23:17 PM UTC-4, James wrote:

BTW, I installed my headset, knowing the surfaces were already properly
faced. I bought a huge bolt, two washers and a nut to suit. With a
pair of spanners I have a headset bearing press.

Yep, I've done that many times. But being American, I used wrenches instead of spanners. ;-)

- Frank Krygowski

On 9/16/2013 1:09 PM, datakoll wrote:
problem with output consistency, varies not with rpm but air moisture content,,,,;leading to failure after 3-4 variations.

Also does not scare bears.

--
T0m $herm@n

On 17/09/13 12:19, Frank Krygowski wrote:
On Monday, September 16, 2013 6:23:17 PM UTC-4, James wrote:

BTW, I installed my headset, knowing the surfaces were already properly
faced. I bought a huge bolt, two washers and a nut to suit. With a
pair of spanners I have a headset bearing press.

Yep, I've done that many times. But being American, I used wrenches instead of spanners. ;-)


I keep my wenches out of the workshop area. Too distracting. Oh,
"wrenches", sorry.

So do you speak of open ended wrenches and ring wrenches? We'd say,
"Can you hand me the 14/15 ring spanner, Mate?" This would of course
refer to a ring spanner with a 14mm ring one end and a 15mm ring the
other end.

--
JS

James writes:

On 17/09/13 12:19, Frank Krygowski wrote:
On Monday, September 16, 2013 6:23:17 PM UTC-4, James wrote:

BTW, I installed my headset, knowing the surfaces were already properly
faced. I bought a huge bolt, two washers and a nut to suit. With a
pair of spanners I have a headset bearing press.

Yep, I've done that many times. But being American, I used wrenches instead of spanners. ;-)


I keep my wenches out of the workshop area. Too distracting. Oh,
"wrenches", sorry.

So do you speak of open ended wrenches and ring wrenches? We'd say,
"Can you hand me the 14/15 ring spanner, Mate?" This would of course
refer to a ring spanner with a 14mm ring one end and a 15mm ring the
other end.

I've never heard the term "ring wrench". I'd call it a box-end wrench.


--
Joe Riel

On 17/09/13 15:58, Joe Riel wrote:
James writes:

On 17/09/13 12:19, Frank Krygowski wrote:
On Monday, September 16, 2013 6:23:17 PM UTC-4, James wrote:

BTW, I installed my headset, knowing the surfaces were already properly
faced. I bought a huge bolt, two washers and a nut to suit. With a
pair of spanners I have a headset bearing press.

Yep, I've done that many times. But being American, I used wrenches instead of spanners. ;-)


I keep my wenches out of the workshop area. Too distracting. Oh,
"wrenches", sorry.

So do you speak of open ended wrenches and ring wrenches? We'd say,
"Can you hand me the 14/15 ring spanner, Mate?" This would of course
refer to a ring spanner with a 14mm ring one end and a 15mm ring the
other end.

I've never heard the term "ring wrench". I'd call it a box-end wrench.



A box spanner is something completely different for us. It's like a
tube with a hexagonal end and a hole transverse such that you can insert
a pin or screwdriver shaft to apply torque.

http://i.ebayimg.com/00/s/MTYwMFgxNjAw/z/mU0AAOxyf2pR5VaM/$(KGrHqFHJEIFH,op-+7vBR5V,L2w8g~~60_58.JPG

The kind of thing you would use to take a water tap off to replace the
washer(s).

Some spark plugs may be removed with a box (or tube) spanner.

--
JS.

On 09/16/2013 06:41 PM, James wrote:
On 17/09/13 03:07, Frank Krygowski wrote:
On Monday, September 16, 2013 1:58:16 AM UTC-4, James wrote:
My poor ol' Sanyo Dynapower is getting a bit long in the tooth.
The bearings and bushes are wearing out. It makes a bit more noise
than it used to, despite me lubricating the moving parts. I
suspect it's days are numbered.

Entirely possible. It's - what? - probably over 30 years old.
That's one of the problems with bike dynamos; it's hard to get one to
last for 50 years. ;-)

Something like that, but it's not been used for very many years. Where
it was traditionally mounted (under and behind the BB) had it suffer all
kinds of watery grit.


So I ordered a PV-8
http://www.sp-dynamo.com/8seriesdynamo%20hub.html from the UK.

Let us know how it does, please.


Of course.

If I can come up with what I consider a good combination of dynamo and
light, I want to try to get some others to use them. I'd like to be
able to buy the parts, build a wheel and sell a winter training lights
solution to last through years of abuse. It's difficult now though with
the cheap lights from the likes of DX - though the beam is not optimal
and the batteries always need charging.

Any ideas on how to apply a ceramic coating to an Al rim?

From what I can tell, Mavic are the only people who really made it
happen. Some others have tried, but have not been very successful, and
now Mavic have gone away from the Ceramic coating they once had,
presumably because the rim never wore out.

I know they've got some new coating system now, but from what I've read
it wears off after a year or two. My Ceramic coated rims are still like
new after about 100,000km.


What's old is new again? Not a ceramic coating but I still have an old
"Matrix" (Trek) hard-anodized rim. I don't use it because the hub is
shot and I couldn't find new parts to rebuild it (and the matching rear
with Helicomatic was gone before I got the bike.) Seems to have been a
not very successful idea...

nate

--
replace "roosters" with "cox" to reply.
http://members.cox.net/njnagel

On Tuesday, September 17, 2013 1:58:37 AM UTC-4, JoeRiel wrote:
James writes:



On 17/09/13 12:19, Frank Krygowski wrote:

On Monday, September 16, 2013 6:23:17 PM UTC-4, James wrote:



BTW, I installed my headset, knowing the surfaces were already properly

faced. I bought a huge bolt, two washers and a nut to suit. With a

pair of spanners I have a headset bearing press.



Yep, I've done that many times. But being American, I used wrenches instead of spanners. ;-)





I keep my wenches out of the workshop area. Too distracting. Oh,

"wrenches", sorry.



So do you speak of open ended wrenches and ring wrenches? We'd say,

"Can you hand me the 14/15 ring spanner, Mate?" This would of course

refer to a ring spanner with a 14mm ring one end and a 15mm ring the

other end.



I've never heard the term "ring wrench". I'd call it a box-end wrench.

Same here.

- Frank Krygowski