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Search: Posts Made By: gfk_velo
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11-16-22, 03:08 AM
Replies: 20
Views: 374
Posted By gfk_velo

At Velotech Cycling Ltd, one of the two...

At Velotech Cycling Ltd, one of the two Campagnolo Service Centre in the UK, we have 3 Dogma 65.1s from 2010/11.
We havea 53, a 55 and a 57cm.

At various times we've test-assembled non-standard...
08-05-22, 12:39 AM
Replies: 4
Views: 174
Posted By gfk_velo

Yes, they are but you appear to have them...

Yes, they are but you appear to have them correctly assembled.

The upper (guide) pulley is labelled as such and is unidirerectional. The lower (idler) pulley is labelled and has a direction of...
07-26-22, 10:28 AM
Replies: 8
Views: 5,986
Posted By gfk_velo

The preload washer imparts, when compressed to...

The preload washer imparts, when compressed to the degree allowed by the tolerance given for BB shell width, a pre-load in the *correct* range, as specified by Schaeffler, who make the bearing.
It's...
02-28-22, 03:30 AM
Replies: 119
Views: 21,699
Posted By gfk_velo

This is a huge subject, one in which I've become...

This is a huge subject, one in which I've become interested because I'm a born skeptic ... I wanted to drill down (if you'll forgive the almost-pun) into the back story of oils and greases.
I read...
02-28-22, 03:21 AM
Replies: 119
Views: 21,699
Posted By gfk_velo

Gently and with great respect ... "Aircraft...

Gently and with great respect ...
"Aircraft quality" in this context is utterly meaningless.

Are we talking about the grease that is used on the sliding drawers in the galley, or are we talking...
02-21-22, 04:39 AM
Replies: 119
Views: 21,699
Posted By gfk_velo

As promised, here's the text from our primer on...

As promised, here's the text from our primer on oils and greases. Please use as you wish but any reproduction should carry the Copyright note.Lubricants and Greases

Lubrication oils

Lubrication...
Forum: Road Cycling
02-13-22, 06:51 PM
Replies: 87
Views: 25,037
Posted By gfk_velo

doug Yes, that'll work fine. The Potenza...

doug
Yes, that'll work fine.
The Potenza chainset was changed in 2017/8 with slightly wider spaced rings (Hydraulic Optimised or HO / H11) and the LH shifter internal needed to change at that point...
01-30-22, 04:42 AM
Replies: 119
Views: 21,699
Posted By gfk_velo

Theres a lot of folk here who dont appear to know...

Theres a lot of folk here who dont appear to know much about oils, greases and the interactions between the oil the soap, other thickeners and the assemblis that theyre used in. Its a whole complex...
10-24-21, 07:34 PM
Replies: 77
Views: 14,718
Posted By gfk_velo

I think the hub is from a rear one of these: ...

I think the hub is from a rear one of these:
https://www.retroroad.co.uk/products/campagnolo-vento-clincher-vintage-wheelset

According to a quick bit of checking in some old docs I have, the...
05-10-21, 02:07 AM
Replies: 77
Views: 14,718
Posted By gfk_velo

It's unfortunate that he finds it necessary to...

It's unfortunate that he finds it necessary to present the way he does.
A lot of what he says is well considered in it's content and it's great having someone calling the cycle industry to account...
Forum: Road Cycling
04-27-21, 11:30 AM
Replies: 87
Views: 25,037
Posted By gfk_velo

I'll give my opposite number your side of the...

I'll give my opposite number your side of the pond a heads-up and see if I can get any delivery info.
Can't promise but I can ask the question :-D
03-21-21, 02:50 PM
Replies: 9
Views: 3,387
Posted By gfk_velo

This note made for another user. He had a...

This note made for another user.

He had a specific problem apropos 12-30 cassettes and cassette spacers but without detailed checking of the 12-27 cassettes across the years, I can't say that this...
02-08-21, 03:01 AM
Replies: 77
Views: 14,718
Posted By gfk_velo

Usually if they are marked at all, the cones are...

Usually if they are marked at all, the cones are marked on the flat face that the tag washer / spacer or locknut tightens down against.Generally it's a manufacturing date, not an identifier as such....
02-08-21, 02:54 AM
Replies: 77
Views: 14,718
Posted By gfk_velo

Please note - as I said in my post on...

Please note - as I said in my post on ballbearings, they are not consistent for size in every year / model.
"some hubs are 1/4", some 7/32" depending on age. NGS balls are conventional 1/4".
...
Forum: Road Cycling
08-27-20, 04:06 PM
Replies: 26
Views: 3,380
Posted By gfk_velo

Were these derailleurs subject to warranty...

Were these derailleurs subject to warranty claims?
It could be that the spring's "hook" was not within spec, so if it came out once, potentially it could do it again.

Obviously, from Campagnolo's...
Forum: Road Cycling
07-29-20, 02:31 PM
Replies: 26
Views: 3,380
Posted By gfk_velo

Campagnolo don't recommend any intermix of 11 and...

Campagnolo don't recommend any intermix of 11 and 12s apart from the brakes, BB cups and cassette bodies.

Intermixing the crankset / FD is not recommended as the front shift can be unpredictable....
Forum: Road Cycling
07-26-20, 11:33 AM
Replies: 26
Views: 3,380
Posted By gfk_velo

No, the Centaur 11 shifting system is stand-alone...

No, the Centaur 11 shifting system is stand-alone within the Campagnolo groupsets - it has nothing in common with any other shift lever / rear derailleur that Campagnolo make or have made, other than...
07-21-20, 03:20 PM
Replies: 10
Views: 1,246
Posted By gfk_velo

It would be possible if you were very patient,...

It would be possible if you were very patient, yes ... it would probably be ill-advised, though. The reason they are there in the one-piece alloy bodies is to prevent cracking at the heels of the...
07-21-20, 02:18 PM
Replies: 10
Views: 1,246
Posted By gfk_velo

Depending on the exact age of your hub, you may...

Depending on the exact age of your hub, you may only need a cassette body or, I suspect more likely, a new axle, cassette body and bearing preload collar.


RGMN has already answered in substance....
06-15-20, 02:22 AM
Replies: 66
Views: 10,328
Posted By gfk_velo

Most likely incorrect basic set up. A...

Most likely incorrect basic set up.

A correctly set Athena 11s FD does not need to be trimmed on big-big, only on small-small (usually when the chain is on around the third-from-smallest sprocket,...
06-12-20, 02:40 PM
Replies: 66
Views: 10,328
Posted By gfk_velo

Basically it breaks down like this ... ...

Basically it breaks down like this ...

Athena - if the top pivot bolt is chromed steel, silver, it's the stronger spring. If it's black alloy, it's the PowerShift version with the 850-900g...
06-10-20, 11:47 PM
Replies: 66
Views: 10,328
Posted By gfk_velo

Unfortunately, not - Athena was, like Potenza and...

Unfortunately, not - Athena was, like Potenza and Centaur are now, basically stand-alone.

Lever bodies are freely available, so the best thing might be to pick up a couple of bodies only - any...
06-10-20, 01:07 PM
Replies: 66
Views: 10,328
Posted By gfk_velo

The factory lubricant is Kluber Isoflex NB52...

The factory lubricant is Kluber Isoflex NB52 Topas grease.
So long as users don't wash it out with degreasers or other volatiles, the lubricationis good for 3 or 4 years. If the levers need...
06-10-20, 12:09 PM
Replies: 66
Views: 10,328
Posted By gfk_velo

It's not necessarily quite that simple. ...

It's not necessarily quite that simple.

Chorus Ergos work fine with older version (2009-2011) Athena RDs.

More recent Athena RDs don't work as well with CH, RE and SR Ergos, especially in cases...
06-10-20, 11:55 AM
Replies: 66
Views: 10,328
Posted By gfk_velo

Potenza and Athena levers are not...

Potenza and Athena levers are not inter-compatibe.
Different cable pull to derailleur movement ratio.
05-27-20, 06:41 AM
Replies: 6
Views: 1,031
Posted By gfk_velo

I've worked with Campagnolo for 37 years and...

I've worked with Campagnolo for 37 years and never seen or heard anything to suggest that Campagnolo themselves ever made frames, or even marketed a third party's product as a Campagnolo frame. Frame...
04-17-20, 04:47 PM
Replies: 20
Views: 3,207
Posted By gfk_velo

Genuine Campag after-market gear cable sets are...

Genuine Campag after-market gear cable sets are still supplied with step-down ferrules included.
You can buy them loose, the Campag part number is 10-CG-CS013, any Campagnolo ProShop can order them...
10-18-19, 05:35 AM
Replies: 56
Views: 6,204
Posted By gfk_velo

Centrelock is such a prevalent technology that...

Centrelock is such a prevalent technology that they'd have been mad to go out on a limb and try to develop something totally new. Aditionally, in testing, Campagnolo found that Centrelock (or AFS as...
10-18-19, 05:10 AM
Replies: 56
Views: 6,204
Posted By gfk_velo

That's just about money, nothing else. There...

That's just about money, nothing else.

There were 3 / 18 World Tour teams on Campag in 2019, plus some additional support to teams with Fulcrum..

Alongside that there are 3 / 24...
Forum: Road Cycling
09-02-19, 02:23 AM
Replies: 48
Views: 8,335
Posted By gfk_velo

Please see my (rather long) posts below, Robert. ...

Please see my (rather long) posts below, Robert.

Bear in mind that as a light rider, you won't get as much advantage out of the current (and in some ways, misguided) trend for wider tyres. 25s at...
Forum: Road Cycling
09-02-19, 01:57 AM
Replies: 48
Views: 8,335
Posted By gfk_velo

That's not really true. First, define what...

That's not really true.

First, define what you mean by "heavy" - spinning weight and how far out from the hub centre (the further out the weight is, the more influence on acceleration as well as...
Forum: Road Cycling
09-02-19, 01:36 AM
Replies: 48
Views: 8,335
Posted By gfk_velo

Sorry, late coming back to this thread. A...

Sorry, late coming back to this thread.

A few notes - not intended to be a wheel builder 101 but just strands gathered from some of the answers above ...

Note - I am not anti-tech and not a...
Forum: Road Cycling
08-26-19, 08:31 AM
Replies: 48
Views: 8,335
Posted By gfk_velo

I have to declare an interest here - I am...

I have to declare an interest here - I am Campag's head tech in the UK ... I'm also a custom wheelbuilder with something like 2800 pairs and 900 individual wheels in my "wheel book" - now more ofa...
08-10-19, 05:57 AM
Replies: 11
Views: 1,890
Posted By gfk_velo

Access to the last sprocket: Diferent wheel...

Access to the last sprocket:
Diferent wheel maufacturers put their cassette bodies slightly differing distances from the rear drop out. I don't know what dimension the AXIS wheels use for this but...
05-19-19, 07:32 PM
Replies: 10
Views: 3,040
Posted By gfk_velo

It all depends on what you mean by making it work...

It all depends on what you mean by making it work and how well you expect it to work.

It also depends on how good a mechanic you are and whether you are willing and equipped to do things carefully...
11-01-18, 06:34 AM
Replies: 77
Views: 14,718
Posted By gfk_velo

Hi there The hub looks in super condition! ...

Hi there

The hub looks in super condition!

Basically, Campag cassette hubs are two bearing systems - there is the system that the hub spins around, and the system that the cassette body sits...
09-16-18, 06:38 PM
Replies: 8
Views: 6,405
Posted By gfk_velo

Guaranteed 100% fake. Decals all wrong, no...

Guaranteed 100% fake.
Decals all wrong, no braking surface treatment (should be Diamant or AC3 and these are neither), spoking pattern incorrect (Mega G3 drive side spokes run parallel, they don't...
06-07-18, 10:15 PM
Replies: 13
Views: 2,947
Posted By gfk_velo

It's exactly as it should be. The helper...

It's exactly as it should be.

The helper spring has always locked into the body of the LH 11s UltraShift lever - in fact in the old 10s levers, the LH helper spring also passed around a specially...
12-04-15, 06:43 PM
Replies: 65
Views: 12,120
Posted By gfk_velo

Campag Deltas mark the start of my relationship...

Campag Deltas mark the start of my relationship with the Campagnolo technical team, so I am very fond of them - back in 1987 I rocked up at the door of the Campagnolo factory as a rather brash team...
04-22-14, 08:08 PM
Replies: 5
Views: 1,349
Posted By gfk_velo

In general no. As sydney says, the spindle...

In general no.

As sydney says, the spindle tapers differ - depending on the age, Campagnolo tapers may be their own proprietory design (similar, but not identical to, ISO), wheras Shimano use JIS...
Showing results 1 to 40 of 40


 
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