HOT: Active* forum members generally gain 5% discount at starbike.com store!
Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Articles FAQ Contact About




Post new topic Reply to topic  [ 20 posts ] 
Go to page 1, 2  Next
Author Message
PostPosted: Wed Jan 25, 2012 10:39 pm 
Offline
User avatar

Joined: Mon Jul 05, 2010 5:18 pm
Posts: 617
How much of a difference is there between a 11-23 Cassette VS 12-23 Cassette?

I'm going to be riding a lot of hills, some climbs and very limited flat areas.
I ride for personal fitness. I don't race, but I do push myself as hard as I can.
I'm considering going from an Ultegra 6600 11-23 to a Dura-Ace 12-23.
The only other upgrade I'd consider on this drivetrain would
be to go from a Dura-Ace 7801 chain to a KMC X10SL chain.

_________________
Project CAAD9 7.2kg
The CAAD Build Thread


Last edited by 2ndgen on Wed Jan 25, 2012 10:43 pm, edited 1 time in total.

Top
 Profile  
 
Posted: Wed Jan 25, 2012 10:39 pm 


Top
  
 
PostPosted: Wed Jan 25, 2012 10:42 pm 
Offline
User avatar

Joined: Wed Sep 26, 2007 1:57 pm
Posts: 7311
Location: San Francisco, CA
What front cogs?

12-23 is nice for having an 18 for hillclimb time trials, but otherwise the 11-23 may be a better choice if you use a compact crank. The 50-11 comes in handy occasionally.

_________________
http://djconnel.blogspot.com/
Fuji SL/1
Selling SPD-SL 7900 pedals: 248 grams


Top
 Profile  
 
PostPosted: Wed Jan 25, 2012 11:01 pm 
Offline

Joined: Sun Sep 28, 2008 2:23 am
Posts: 655
Location: so. cal.
depends how steep the hills are. for me hills have 5%+ gradients and for more than 1km and under those circunstances i rather have an 11-26. the only difference will be the gear spacing.


Top
 Profile  
 
PostPosted: Wed Jan 25, 2012 11:02 pm 
Offline
User avatar

Joined: Mon Jul 05, 2010 5:18 pm
Posts: 617
djconnel wrote:
What front cogs?

12-23 is nice for having an 18 for hillclimb time trials, but otherwise the 11-23 may be a better choice if you use a compact crank. The 50-11 comes in handy occasionally.


53/39.

To be honest, I'm completely ignorant on gearing.
Generally, I get up to speed and keep it up as much as possible.
I try to maintain a 15-20mph avg over my riding time which generally averages of 1 1/2-2 hours.



roca rule wrote:
depends how steep the hills are. for me hills have 5%+ gradients and for more than 1km and under those circunstances i rather have an 11-26. the only difference will be the gear spacing.


I couldn't tell you the gradients. I'll offer up my Roofer skills in determining slopes.
Generally, I suspect it's an average 22 degree slope and gets higher than that.

_________________
Project CAAD9 7.2kg
The CAAD Build Thread


Top
 Profile  
 
PostPosted: Wed Jan 25, 2012 11:24 pm 
Offline

Joined: Sat Nov 13, 2010 7:46 pm
Posts: 171
I hate to be a doubting thomas but 22% is really, really steep. Please tell us where you live.

Of course, gearing really all depends on the strength of the rider and for all I know, you may be the next [insert the name of you favorite pro mountain specialist here]. However, if your lowest gear is 39X23 and you are regularly riding up 22% gradiant climbs, you should already know whether you need an 11 tooth cog on the flats and the decents or whether a 12 tooth cog will suffice.


Top
 Profile  
 
PostPosted: Wed Jan 25, 2012 11:25 pm 
Offline
User avatar

Joined: Sun Dec 28, 2008 10:15 pm
Posts: 1144
Location: Hungary
I even race with a 12-23 cassette and a compact (50/34) crank.
Never lost contact with the bunch because of the gearing, even with 45km/h (28mph) averages.
Sure, in Hungary amateur racing is far from pro level, but it's still racing speed, not comparable to speeds I can reach alone.

But during training I spend most time on 17-18-19, and I do miss the 18 when on a different cassette, but very rarely use the 12.


Top
 Profile  
 
PostPosted: Wed Jan 25, 2012 11:35 pm 
Offline

Joined: Wed Mar 31, 2010 3:37 am
Posts: 156
Like others pointed out, it depends... allaround personally I like 11.21 w/ 53.39 , unless grades go over 4% for over 5k. Then i. Like taller gears. I'm a high cadence climber/TTer, so 11.21 is more veristal for me with 50.34, 53.39, 55.42 just depends on the course. My other favorite is 12-25 for long climbs (50.34) and crits (53.39)

If I don't have gaps in the gears that is better. But the occasional 15% 400m climb at 40rpms is doable with 39.21

If you can't change the front, a 12-23 would be my choice.

_________________
Allez E5 - 8.00kg

CAAD9 - 6.32kg


Top
 Profile  
 
PostPosted: Wed Jan 25, 2012 11:41 pm 
Offline

Joined: Sat Dec 22, 2007 4:17 am
Posts: 188
2ndgen wrote:
djconnel wrote:
What front cogs?

12-23 is nice for having an 18 for hillclimb time trials, but otherwise the 11-23 may be a better choice if you use a compact crank. The 50-11 comes in handy occasionally.


53/39.

To be honest, I'm completely ignorant on gearing.
Generally, I get up to speed and keep it up as much as possible.
I try to maintain a 15-20mph avg over my riding time which generally averages of 1 1/2-2 hours.


So you have an 11-23. How much do you use the 11? If the answer is 'not at all' then get the 12-23.



2ndgen wrote:
roca rule wrote:
depends how steep the hills are. for me hills have 5%+ gradients and for more than 1km and under those circunstances i rather have an 11-26. the only difference will be the gear spacing.


I couldn't tell you the gradients. I'll offer up my Roofer skills in determining slopes.
Generally, I suspect it's an average 22 degree slope and gets higher than that.


A 22 degree slope is a 40% gradient.


Top
 Profile  
 
PostPosted: Wed Jan 25, 2012 11:43 pm 
Offline
User avatar

Joined: Mon Jul 05, 2010 5:18 pm
Posts: 617
5shot wrote:
I hate to be a doubting thomas but 22% is really, really steep. Please tell us where you live.

Of course, gearing really all depends on the strength of the rider and for all I know, you may be the next [insert the name of you favorite pro mountain specialist here]. However, if your lowest gear is 39X23 and you are regularly riding up 22% gradiant climbs, you should already know whether you need an 11 tooth cog on the flats and the decents or whether a 12 tooth cog will suffice.


I could be completely wrong.
I guesstimated it.
Morgantown,WV 26505

_________________
Project CAAD9 7.2kg
The CAAD Build Thread


Top
 Profile  
 
PostPosted: Wed Jan 25, 2012 11:44 pm 
Offline

Joined: Thu Jan 26, 2006 6:01 pm
Posts: 1498
With a standard crank a 12-23 is really a better cassette, if you aren't a pro sprinter. I'd image you'd feel a bit better with a 12-25 though, if you are riding a lot of hills.


Top
 Profile  
 
PostPosted: Wed Jan 25, 2012 11:48 pm 
Offline

Joined: Sat Mar 19, 2011 10:50 pm
Posts: 632
The real question for me is, is 23 enough? I often find myself needing more.


Top
 Profile  
 
PostPosted: Thu Jan 26, 2012 12:02 am 
Offline
User avatar

Joined: Mon Jul 05, 2010 5:18 pm
Posts: 617
Briscoelab wrote:
With a standard crank a 12-23 is really a better cassette, if you aren't a pro sprinter. I'd image you'd feel a bit better with a 12-25 though, if you are riding a lot of hills.


I have more legs than lungs. I didn't notice it being much harder for me to go from 12-27 to 11-23.

I purposely went with 11-23 to make myself work harder. With 25+ years of working on Roofs,
climbing 40' ladders with 100lbs on my shoulder and a 20lb tool belt, pushing a 20lb bike wasn't
as hard as my actual job (not saying that it's been easy either).

Again, it's my endurance that I've had to work on. I'm just recovering from a leg injury (ruptured calf)
and have had to stay off the bike since October. I'm going to start riding again soon starting this week.

_________________
Project CAAD9 7.2kg
The CAAD Build Thread


Top
 Profile  
 
PostPosted: Thu Jan 26, 2012 12:06 am 
Offline
User avatar

Joined: Mon Jul 05, 2010 5:18 pm
Posts: 617
:thumbup: Thanks to everybody who's contributed.

_________________
Project CAAD9 7.2kg
The CAAD Build Thread


Top
 Profile  
 
PostPosted: Thu Jan 26, 2012 12:18 am 
Offline

Joined: Tue Sep 28, 2010 10:30 pm
Posts: 313
Ahhh so you are okay at pushing the gears but at what cadence? Sounds like your climbing cadence may be low. Low cadence taxes your muscles more and you get burn-out faster. If you are doing short-ish rides that is probably not a problem but if you are doing races preserving your energy and expending it where it's really needed is of utmost importance for race results. Since my new coach has got me to do everything at 100+ rpms I find that even the 25 is not enough on some of the hills around here.

Put it this way, choosing between 11/23 and 12/23 (that 1 tooth) is going to affect you at high speed not climbing speed. You do not climb in the 11 or 12 yeah? But you may be sprinting in the 11 or 12.

_________________
It's not how much you spend on a bike it's how hard you can ride it.


Top
 Profile  
 
Posted: Thu Jan 26, 2012 12:18 am 


Top
  
 
PostPosted: Thu Jan 26, 2012 2:00 am 
Offline
User avatar

Joined: Mon Jul 05, 2010 5:18 pm
Posts: 617
Mikmik wrote:
Ahhh so you are okay at pushing the gears but at what cadence? Sounds like your climbing cadence may be low. Low cadence taxes your muscles more and you get burn-out faster. If you are doing short-ish rides that is probably not a problem but if you are doing races preserving your energy and expending it where it's really needed is of utmost importance for race results. Since my new coach has got me to do everything at 100+ rpms I find that even the 25 is not enough on some of the hills around here.

Put it this way, choosing between 11/23 and 12/23 (that 1 tooth) is going to affect you at high speed not climbing speed. You do not climb in the 11 or 12 yeah? But you may be sprinting in the 11 or 12.


I have this love/hate relationship with climbing.
I hate it so I try too tackle them as quick as possible.
When I meet one, I just hit it hard until it's over with.
I love it because it feels great once I'm done with it.
I don't know what my cadence is (low? high?).
Don't know what to compare it to. I don't race.

:)

_________________
Project CAAD9 7.2kg
The CAAD Build Thread


Last edited by 2ndgen on Thu Jan 26, 2012 2:07 am, edited 1 time in total.

Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 20 posts ] 
Go to page 1, 2  Next


Who is online

Users browsing this forum: bruno2000, DMF, LionelB, vfb, Yahoo [Bot] and 35 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Shimano Ultegra 6800 cassette question

in Road

BeeBee30

13

1714

Tue Oct 29, 2013 6:40 am

Sam View the latest post

There are no new unread posts for this topic. 11-32t, 12-32t or 12-30t cassette for climbing set-up

[ Go to page: 1, 2, 3 ]

in Road

plpete

32

2777

Mon Jul 29, 2013 7:37 pm

AaronKellogg View the latest post

There are no new unread posts for this topic. 11-32 cassette only new Ultegra??

in Road

FHKJ

14

4908

Fri Aug 09, 2013 9:03 am

HillRPete View the latest post

There are no new unread posts for this topic. SRAM 11 Speed Cassette

in Road

lotushiast

5

639

Tue Nov 05, 2013 2:25 am

Gearhead65 View the latest post

There are no new unread posts for this topic. 11 SP DI2 works Campy Cassette

[ Go to page: 1, 2 ]

in Road

vboy19

17

1814

Fri Aug 16, 2013 11:21 pm

gmitt98 View the latest post


It is currently Fri Apr 18, 2014 10:36 am

All times are UTC + 1 hour




Advertising   –  FAQ   –  Contact   –  Convert   –  About

© Weight Weenies 2000-2013
hosted by starbike.com


How to get rid of these ads? Just register!


Powered by phpBB