Just ordered a hub dynamo online

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.

--
JS

WORD HERE is the PV8 is junk.

On 09/16/2013 08:59 AM, datakoll wrote:
WORD HERE is the PV8 is junk.


Seemed to be well thought of by the Dutch guy who does all the gear
reviews... I won't be testing though unless the two that I already have
go Tango Uniform (Shimano on the bike and a used SON in the junk box as
backup)

Supposedly the Shutter Precision was smoother running than either of
them and otherwise equivalent in performance... I don't know about
longevity/serviceability though. I do know that the "unserviceable"
Shimano hubs are in fact greasable, the mechanic at my LBS did mine.
(yeah, that is one of two jobs that I didn't do myself, the other being
installing a new headset because that was cheaper to pay someone to do
than to buy the facing/reaming tools.)

nate

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

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. ;-)

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

Let us know how it does, please.

- Frank Krygowski

problem with output consistency, varies not with rpm but air moisture content,,,,;leading to failure after 3-4 variations.

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.



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.



--

JS

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.

Looking forward to your report on the Shutter Precision Hub Dynamo.

Andre Jute

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.


--
Lou

On 09/16/2013 05:42 PM, 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.



Lighter than mine, that's for damn sure!

nate

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

On 16/09/13 23:25, Nate Nagel wrote:

Seemed to be well thought of by the Dutch guy who does all the gear
reviews... I won't be testing though unless the two that I already have
go Tango Uniform (Shimano on the bike and a used SON in the junk box as
backup)

Supposedly the Shutter Precision was smoother running than either of
them and otherwise equivalent in performance... I don't know about
longevity/serviceability though. I do know that the "unserviceable"
Shimano hubs are in fact greasable, the mechanic at my LBS did mine.
(yeah, that is one of two jobs that I didn't do myself, the other being
installing a new headset because that was cheaper to pay someone to do
than to buy the facing/reaming tools.)


Apparently the PV-8 and friends have sealed cartridge bearings, that I
would assume are replaceable.

The only negative I read was that the axle is Al, and some people have
broken them. I can only guess that these folks are heavy people, or
carrying heavy gear perhaps. Being a relatively light rider and not one
to crash through potholes and the like, I don't expect the axle to cause
me grief, but I guess the proof will come after some years of use.

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.

--
JS

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.

--
JS