View Full Version : Question ro the Campagnolo club: H11 Crankset
jambee
05-27-2018, 05:06 AM
My trusty Chorus 11 big ring is ready to start slicing bread. It's been on the Seven since 2013, rode some 13,000 km and is ready to be retired.
There are of course cheap ways to solve this problem: replace the big ring at a total cost of 145 Euro and ride on.
But you know...why keep it simple and cheap when you can agonise over how the new H11 Crankset is going to be so nice.
So the question to the hive mind: will the new H11 (yes, I ride disk, yes my frame is spaced 135mm) make any difference in shifting? riding? Peddling? Is the H11 basically a relabelled non "disk-optimised" crankset that Campagnolo is trying to make money on?
Call me H11-curious.
oldpotatoe
05-27-2018, 06:26 AM
My trusty Chorus 11 big ring is ready to start slicing bread. It's been on the Seven since 2013, rode some 13,000 km and is ready to be retired.
There are of course cheap ways to solve this problem: replace the big ring at a total cost of 145 Euro and ride on.
But you know...why keep it simple and cheap when you can agonise over how the new H11 Crankset is going to be so nice.
So the question to the hive mind: will the new H11 (yes, I ride disk, yes my frame is spaced 135mm) make any difference in shifting? riding? Peddling? Is the H11 basically a relabelled non "disk-optimised" crankset that Campagnolo is trying to make money on?
Call me H11-curious.
It'll work fine, shift fine, ride fine. It IS a 'disc' optimized crank that is what you have, 135mm rear spacing wise. Your rig sounds fine w/o a 'H11' crank but some frames are not.
jambee
05-27-2018, 08:55 AM
Thanks @oldpotato
I wonder what's the big deal then with the new crankset...is this for frames with wider rear?
oldpotatoe
05-27-2018, 09:15 AM
Thanks @oldpotato
I wonder what's the big deal then with the new crankset...is this for frames with wider rear?
Essentially.
colker
05-27-2018, 03:50 PM
145 euros for a big ring??:eek:
d_douglas
05-27-2018, 03:59 PM
I have the exact same thing on a 135mm disc frame. I just put the HO Potenza crank on it on the off chance that a future frame is 142mm (or similar)
The bike was designed around a compact road crank so it could go either way.
By the way, are Potenza chainrings compatible with Chorus and higher level rings?
Lionel
05-28-2018, 02:09 AM
Worn out big ring after 13000 km ?
jambee
05-28-2018, 02:10 AM
@lionel yeh...seems about right no? The crankset was also second hand so no idea how much was on it...
Lionel
05-28-2018, 02:11 AM
@lionel yeh...seems about right no? The crankset was also second hand so no idea how much was on it...
No this seems way low. I have a couple of bikes with 13K km on them, the big ring looks like new. A crazy buddy of mine rode 49000 km last year, he is still on the same big ring.
gfk_velo
05-28-2018, 08:35 AM
My trusty Chorus 11 big ring is ready to start slicing bread. It's been on the Seven since 2013, rode some 13,000 km and is ready to be retired.
There are of course cheap ways to solve this problem: replace the big ring at a total cost of 145 Euro and ride on.
But you know...why keep it simple and cheap when you can agonise over how the new H11 Crankset is going to be so nice.
So the question to the hive mind: will the new H11 (yes, I ride disk, yes my frame is spaced 135mm) make any difference in shifting? riding? Peddling? Is the H11 basically a relabelled non "disk-optimised" crankset that Campagnolo is trying to make money on?
Call me H11-curious.
H11 and HO cranksets are different - they are not relabelled anything. You can see just by looking at the mould used for the H11 cranset that it's different to the CH-RE-SR 2015-2018 crank.
Essentially the tooth shapes have been revised, the ring spacing has been modified and the chainline has been pushed outward by 1 mm so as to improve the function with 135 / 142 mm back ends, whilst maintaining the same Q- and U-factors on the crankset as it's predecessor. The shifting has also been revised for the wider ring spacing and the change in chainline.
The HO and H11 chainsets are fully reverse compatible with 11s systems pre 2018 but FD shifting may need some attention as the limit screws and cable tensions will need to be changed. Without 2018 or later levers, you may have some problem getting the full span of 11 sprockets across the rear from the big chainring without chain-scrape, depending on the exact geometry of the rear end of the bike and the gearing range in use.
gfk_velo
05-28-2018, 08:38 AM
I have the exact same thing on a 135mm disc frame. I just put the HO Potenza crank on it on the off chance that a future frame is 142mm (or similar)
The bike was designed around a compact road crank so it could go either way.
By the way, are Potenza chainrings compatible with Chorus and higher level rings?
135 and 142 are the same geometry as far as the cassette placement is concerned.
The 142 mm arises because of the 2 x 3.5 mm deep recesses that are machined into the dropouts to take the Hollow Hub axle ends.
teleguy57
05-28-2018, 09:04 AM
...and the chainline has been pushed outward by 1 mm so as to improve the function with 135 / 142 mm back ends, whilst maintaining the same Q- and U-factors on the crankset as it's predecessor....
Graeme, always appreciate your professional contributions here. So I had been thinking there must be more chainline difference between the previous cranks and the latest for the larger rear spacing. While not optimized as are the new offerings, it seems that even a 5-arm Campagnolo crankset would be workable with 135 or 142? Has that been your service centre's experience?
Thanks!
AngryScientist
05-28-2018, 10:23 AM
No this seems way low. I have a couple of bikes with 13K km on them, the big ring looks like new. A crazy buddy of mine rode 49000 km last year, he is still on the same big ring.
i would agree that for a road bike 13k seems quite low to wear out a chainring, if diligent chain change-outs have been done.
on a wet weather, gravel bike that seems a ton of abrasive material in the drivetrain often - that might not be too abnormal...
jambee
05-28-2018, 02:21 PM
This is my main bike. It's mostly seeing dirt, gravel, forrest roads and is very often being ridden in the snow and wet conditions. I am horrible about cleaning my drivetrain so I'm thinking that this is not such a bad bang for the buck actually. I also bought the crankset second hand and honestly, I have no idea how much millage was on it.
The thread is enlightening though. Many thanks!
vBulletin® v3.8.7, Copyright ©2000-2024, vBulletin Solutions, Inc.