High ratio climbing gears
 

Well, due to continuous nagging from my brother and GCN making a lot of claims and how much trouble I had at the Grizzly Peak Century I decided to go from my 29 large cog to a 32.

Well, Campy doesn't make an 11-32 or anything else with a 32 for that matter. These are common on Shimano and SR 10 speed bikes.

I finally discovered that Interlock makes a 10 speed 11-32 and went to several shops who couldn't get that gear.

Finally I went to Robinson's Wheel Works only 2 miles from my home. Chris really is a knowledgeable mechanic and when I said what I wanted he said to NOT buy Interloc anything because they don't shift properly and wear out rapidly.

He also said that the Campy rear derailleur wouldn't shift anything larger than a 29. I told him that I was getting a mid-length rear derailleur and he said that it still wouldn't shift a gear lower than 29.

Then it occurred to me that I had seen that problem on a Campy triple I had built. If you get the chain length correct the upper arms doesn't have enough motion to lift out of the way of anything larger than a 28. If you pull a link out it CAN shift a 29.

So I will have to get a conversion set of 11 speed Campy to go to a gear set that large and that is now so expensive that I will have to weight a long time.

High ratio climbing gears
 

On Monday, May 20, 2019 at 1:30:19 PM UTC-4, Tom Kunich wrote:
Well, due to continuous nagging from my brother and GCN making a lot of claims and how much trouble I had at the Grizzly Peak Century I decided to go from my 29 large cog to a 32.

Well, Campy doesn't make an 11-32 or anything else with a 32 for that matter. These are common on Shimano and SR 10 speed bikes.

I finally discovered that Interlock makes a 10 speed 11-32 and went to several shops who couldn't get that gear.

Finally I went to Robinson's Wheel Works only 2 miles from my home. Chris really is a knowledgeable mechanic and when I said what I wanted he said to NOT buy Interloc anything because they don't shift properly and wear out rapidly.

He also said that the Campy rear derailleur wouldn't shift anything larger than a 29. I told him that I was getting a mid-length rear derailleur and he said that it still wouldn't shift a gear lower than 29.

Then it occurred to me that I had seen that problem on a Campy triple I had built. If you get the chain length correct the upper arms doesn't have enough motion to lift out of the way of anything larger than a 28. If you pull a link out it CAN shift a 29.

So I will have to get a conversion set of 11 speed Campy to go to a gear set that large and that is now so expensive that I will have to weight a long time.

My 9-speed Campy Mirage Ergo lever shifts my Shimano 32 cog with no problem and that's using a circa 2001 Veloce rear derailleur.

Cheers

High ratio climbing gears
 

On Monday, May 20, 2019 at 12:30:19 PM UTC-5, Tom Kunich wrote:

So I will have to get a conversion set of 11 speed Campy to go to a gear set that large and that is now so expensive that I will have to weight a long time.

I have gone over the "official" large cog size on a few different cassettes and rear derailleurs and never had any problems. Just remember to never use big-big or small-small. Not difficult.

You're looking for a 10 speed Campagnolo cassette with 32 teeth. OK. Campagnolo does make a 30 tooth cassette. Tiny bit better than 29. Not 32, but...

The Miche Primato cassette is 10 speed and Campagnolo compatible. Its available in 13-30. Since your mechanic is against IRD / Interloc Racing Design.

High ratio climbing gears
 

On Monday, May 20, 2019 at 4:09:15 PM UTC-5, wrote:
On Monday, May 20, 2019 at 12:30:19 PM UTC-5, Tom Kunich wrote:

So I will have to get a conversion set of 11 speed Campy to go to a gear set that large and that is now so expensive that I will have to weight a long time.

I have gone over the "official" large cog size on a few different cassettes and rear derailleurs and never had any problems. Just remember to never use big-big or small-small. Not difficult.

You're looking for a 10 speed Campagnolo cassette with 32 teeth. OK. Campagnolo does make a 30 tooth cassette. Tiny bit better than 29. Not 32, but...

The Miche Primato cassette is 10 speed and Campagnolo compatible. Its available in 13-30. Since your mechanic is against IRD / Interloc Racing Design.

https://www.chainreactioncycles.com/us/en/campagnolo-centaur-10-speed-road-cassette/rp-prod89134?gs=1&sku=sku468398&pgrid=54137515364&pta id=pla-431322560060&utm_source=google&utm_term=&utm_campa ign=PLA+All+Products&utm_medium=base&utm_content=m kwid|sU6ivRhB2_dc|pcrid|253659801802|pkw||pmt||prd |468398US&gclid=EAIaIQobChMI6IiZxv-q4gIVg8DACh2rCA8LEAQYAyABEgIhLfD_BwE

https://www.probikekit.com/bicycle-c...E&gclsrc=aw.ds

https://www.chainreactioncycles.com/us/en/miche-primato-10-speed-cassette-campagnolo/rp-prod152804?gs=1&sku=sku556861&pgrid=54137515364&pt aid=pla-432746137323&utm_source=google&utm_term=&utm_campa ign=PLA+All+Products&utm_medium=base&utm_content=m kwid|sKz1DblpO_dc|pcrid|253659801802|pkw||pmt||prd |556861US&gclid=EAIaIQobChMIxNva3YGr4gIVDb7ACh3g7g T2EAQYASABEgKb_PD_BwE



Also should have stated that with Campagnolo, the left/front Ergo shifter does not care about double or triple chainrings. So its easy to just put on a triple crank if you need low gears. I have my mountain climbing bike setup with Veloce 9 speed triple crank (74mm inner bcd so it has a 24 tooth inner ring) and 13-28 cassette. 24x28 low gear is low enough for unloaded mountain climbing.

High ratio climbing gears
 

Sir Ridesalot wrote:
On Monday, May 20, 2019 at 1:30:19 PM UTC-4, Tom Kunich wrote:
Well, due to continuous nagging from my brother and GCN making a lot of
claims and how much trouble I had at the Grizzly Peak Century I decided
to go from my 29 large cog to a 32.

Well, Campy doesn't make an 11-32 or anything else with a 32 for that
matter. These are common on Shimano and SR 10 speed bikes.

I finally discovered that Interlock makes a 10 speed 11-32 and went to
several shops who couldn't get that gear.

Finally I went to Robinson's Wheel Works only 2 miles from my home.
Chris really is a knowledgeable mechanic and when I said what I wanted
he said to NOT buy Interloc anything because they don't shift properly
and wear out rapidly.

He also said that the Campy rear derailleur wouldn't shift anything
larger than a 29. I told him that I was getting a mid-length rear
derailleur and he said that it still wouldn't shift a gear lower than 29.

Then it occurred to me that I had seen that problem on a Campy triple I
had built. If you get the chain length correct the upper arms doesn't
have enough motion to lift out of the way of anything larger than a 28.
If you pull a link out it CAN shift a 29.

So I will have to get a conversion set of 11 speed Campy to go to a gear
set that large and that is now so expensive that I will have to weight a long time.

My 9-speed Campy Mirage Ergo lever shifts my Shimano 32 cog with no
problem and that's using a circa 2001 Veloce rear derailleur.

Cheers


What size cage?

--
duane

High ratio climbing gears
 

On Mon, 20 May 2019 10:30:17 -0700 (PDT), Tom Kunich
wrote:

Well, due to continuous nagging from my brother and GCN making a lot of claims and how much trouble I had at the Grizzly Peak Century I decided to go from my 29 large cog to a 32.

Well, Campy doesn't make an 11-32 or anything else with a 32 for that matter. These are common on Shimano and SR 10 speed bikes.

I finally discovered that Interlock makes a 10 speed 11-32 and went to several shops who couldn't get that gear.

Finally I went to Robinson's Wheel Works only 2 miles from my home. Chris really is a knowledgeable mechanic and when I said what I wanted he said to NOT buy Interloc anything because they don't shift properly and wear out rapidly.

He also said that the Campy rear derailleur wouldn't shift anything larger than a 29. I told him that I was getting a mid-length rear derailleur and he said that it still wouldn't shift a gear lower than 29.

Then it occurred to me that I had seen that problem on a Campy triple I had built. If you get the chain length correct the upper arms doesn't have enough motion to lift out of the way of anything larger than a 28. If you pull a link out it CAN shift a 29.

So I will have to get a conversion set of 11 speed Campy to go to a gear set that large and that is now so expensive that I will have to weight a long time.

Or just buy Shimano that will shift a larger cog :-)
--
cheers,

John B.

High ratio climbing gears
 

On Monday, May 20, 2019 at 5:12:22 PM UTC-4, wrote:
On Monday, May 20, 2019 at 4:09:15 PM UTC-5, wrote:
On Monday, May 20, 2019 at 12:30:19 PM UTC-5, Tom Kunich wrote:

So I will have to get a conversion set of 11 speed Campy to go to a gear set that large and that is now so expensive that I will have to weight a long time.

I have gone over the "official" large cog size on a few different cassettes and rear derailleurs and never had any problems. Just remember to never use big-big or small-small. Not difficult.

You're looking for a 10 speed Campagnolo cassette with 32 teeth. OK. Campagnolo does make a 30 tooth cassette. Tiny bit better than 29. Not 32, but...

The Miche Primato cassette is 10 speed and Campagnolo compatible. Its available in 13-30. Since your mechanic is against IRD / Interloc Racing Design.

https://www.chainreactioncycles.com/us/en/campagnolo-centaur-10-speed-road-cassette/rp-prod89134?gs=1&sku=sku468398&pgrid=54137515364&pta id=pla-431322560060&utm_source=google&utm_term=&utm_campa ign=PLA+All+Products&utm_medium=base&utm_content=m kwid|sU6ivRhB2_dc|pcrid|253659801802|pkw||pmt||prd |468398US&gclid=EAIaIQobChMI6IiZxv-q4gIVg8DACh2rCA8LEAQYAyABEgIhLfD_BwE

https://www.probikekit.com/bicycle-c...E&gclsrc=aw.ds

https://www.chainreactioncycles.com/us/en/miche-primato-10-speed-cassette-campagnolo/rp-prod152804?gs=1&sku=sku556861&pgrid=54137515364&pt aid=pla-432746137323&utm_source=google&utm_term=&utm_campa ign=PLA+All+Products&utm_medium=base&utm_content=m kwid|sKz1DblpO_dc|pcrid|253659801802|pkw||pmt||prd |556861US&gclid=EAIaIQobChMIxNva3YGr4gIVDb7ACh3g7g T2EAQYASABEgKb_PD_BwE



Also should have stated that with Campagnolo, the left/front Ergo shifter does not care about double or triple chainrings. So its easy to just put on a triple crank if you need low gears. I have my mountain climbing bike setup with Veloce 9 speed triple crank (74mm inner bcd so it has a 24 tooth inner ring) and 13-28 cassette. 24x28 low gear is low enough for unloaded mountain climbing.

Oh man thanks for that! I'll have to check the inner bcd on my 9-speed Veloce triple circa 2001 and see if I can put a 24 ring on it. It'd sure beat the 30 that's on t here now.

Cheers

High ratio climbing gears
 

On Monday, May 20, 2019 at 6:34:50 PM UTC-4, Duane wrote:
Sir Ridesalot wrote:
On Monday, May 20, 2019 at 1:30:19 PM UTC-4, Tom Kunich wrote:
Well, due to continuous nagging from my brother and GCN making a lot of
claims and how much trouble I had at the Grizzly Peak Century I decided
to go from my 29 large cog to a 32.

Well, Campy doesn't make an 11-32 or anything else with a 32 for that
matter. These are common on Shimano and SR 10 speed bikes.

I finally discovered that Interlock makes a 10 speed 11-32 and went to
several shops who couldn't get that gear.

Finally I went to Robinson's Wheel Works only 2 miles from my home.
Chris really is a knowledgeable mechanic and when I said what I wanted
he said to NOT buy Interloc anything because they don't shift properly
and wear out rapidly.

He also said that the Campy rear derailleur wouldn't shift anything
larger than a 29. I told him that I was getting a mid-length rear
derailleur and he said that it still wouldn't shift a gear lower than 29.

Then it occurred to me that I had seen that problem on a Campy triple I
had built. If you get the chain length correct the upper arms doesn't
have enough motion to lift out of the way of anything larger than a 28..
If you pull a link out it CAN shift a 29.

So I will have to get a conversion set of 11 speed Campy to go to a gear
set that large and that is now so expensive that I will have to weight a long time.

My 9-speed Campy Mirage Ergo lever shifts my Shimano 32 cog with no
problem and that's using a circa 2001 Veloce rear derailleur.

Cheers


What size cage?

--
duane

Circa 2001 NOT hte short cage. IIRC, the Veloce and Mirage 9-speed came in either short cage or long cage. i don't think there was an intermediate cage. I do know that both my Mirage and Veloce rear derailleurs (2 different bikes) were designed to be used with racing triples 30 - 42 -52 rings.

Cheers

High ratio climbing gears
 

On Monday, May 20, 2019 at 7:02:48 PM UTC-4, John B. wrote:
On Mon, 20 May 2019 10:30:17 -0700 (PDT), Tom Kunich
wrote:

Well, due to continuous nagging from my brother and GCN making a lot of claims and how much trouble I had at the Grizzly Peak Century I decided to go from my 29 large cog to a 32.

Well, Campy doesn't make an 11-32 or anything else with a 32 for that matter. These are common on Shimano and SR 10 speed bikes.

I finally discovered that Interlock makes a 10 speed 11-32 and went to several shops who couldn't get that gear.

Finally I went to Robinson's Wheel Works only 2 miles from my home. Chris really is a knowledgeable mechanic and when I said what I wanted he said to NOT buy Interloc anything because they don't shift properly and wear out rapidly.

He also said that the Campy rear derailleur wouldn't shift anything larger than a 29. I told him that I was getting a mid-length rear derailleur and he said that it still wouldn't shift a gear lower than 29.

Then it occurred to me that I had seen that problem on a Campy triple I had built. If you get the chain length correct the upper arms doesn't have enough motion to lift out of the way of anything larger than a 28. If you pull a link out it CAN shift a 29.

So I will have to get a conversion set of 11 speed Campy to go to a gear set that large and that is now so expensive that I will have to weight a long time.

Or just buy Shimano that will shift a larger cog :-)
--
cheers,

John B.

Isn't the pull ratio on Shimano and Campy different?

Cheers

Double vs. triple front derailleurs [was High ratio climbinggears]
 

On 5/20/2019 5:12 PM, wrote:


Also should have stated that with Campagnolo, the left/front Ergo shifter does not care about double or triple chainrings. So its easy to just put on a triple crank if you need low gears.

That reminded me of a friend's recent problem. She rides a classic Trek
touring bike from the mid 1980s, a really lovely machine.
http://www.vintage-trek.com/images/trek/84Trek_23.jpg
And in recent years especially, she gets a lot of use out of her triple
"granny" sprocket.

A few years ago her front derailleur wouldn't shift. The return spring
had broken. She took it to her usual bike shop. They didn't have a front
derailleur designed to fit her (old standard) 1 1/8" seat tube, so they
installed one intended for a 1 1/4" seat tube, and used shims to adapt it.

Trouble was, the shim held the derailleur far enough to the right that
it wouldn't shift to her granny. When she brought it to me, I saw it was
already at the limit of its leftward adjustment, so I grabbed an old
SunTour front derailleur and installed it.

I think that SunTour was intended for a half step plus granny setup.
Remember those? (And she once had that, but now has something like
50-42-28.) The inner (left) half of the cage was only as tall as the
outside (right) half, maybe 1/2" to 5/8" tall. Most triple derailleurs
have a much taller or deeper inner half of the cage. But I think those
might not work well with a half step setup, since the bottom of the left
half of the cage can run up against the middle chainring.

Anyway, she went away happy and rode with no trouble for maybe five
years, till a few weeks ago. She said she recently had to really coax it
onto the large sprocket, and now could no longer make that shift at all.
The cranks would jam. I was amazed to see the outer (right) half of the
derailleur cage was broken in two, along a horizontal line.

She does not ride with the cage scraping, and there was no real wear on
the inside of the cage. I think that the action of shifting from the 42
to the big ring with the half step derailleur was causing the chain to
partially jam, and the repeated jamming eventually fractured the cage.
And the cage is not aluminum; it's either chromed steel or polished
stainless steel.

In any case, I had no other candidate derailleurs to give her. The bike
shop owner eventually dug deeper into old stock and sold her a Dura Ace
front derailleur that she says works fine. I'll be interested in
inspecting it, and seeing how long it lasts.

I there's a moral, I think it's that some derailleurs are good for half
step with those close ratio shifts, and some are good for wider range
shifts.

Oh, and the other moral is, bike parts can go bad after just 35 years or so.

--
- Frank Krygowski