Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Mountain Biking Mountain biking is one of the fastest growing sports in the world. Check out this forum to discuss the latest tips, tricks, gear and equipment in the world of mountain biking.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 11-29-04, 05:31 AM   #1
53-11 alltheway
Senior Member
Thread Starter
 
Join Date: Sep 2004
Bikes:
Posts: 2,057
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I am here to ask a sincere question.....not to spam you..LOL

I noticed that shiamno and SRAM have totally diffferent ratios for there 11-34 cassettes.

Shimano 11-13-15-17-20-23-26-30-34

SRAM 11-12-14-16-18-21-24-28-34

SRAM most notably has 6 tooth gap at end of cassette 28-34....any problems with the shifting from 28 to 34? How good would you expect the 28 to 34 (or 34 to 28)shift be under load with XT rear derailleur?

P.S. I was reading about SRAM cassettes bending in the bigger cogs..possibly due to the 34 not having enough support. Any truth?

SRAM 9.0 cassettes any good or should I just stick with XT? What about the 7.0 cassettes....were they better?

Also what is the diffrence in quality between PG-950,970,990? Is the PG-990 worth it or should I just save my money and get a PG-950 or PG- 970?

Last edited by 53-11 alltheway; 11-29-04 at 05:54 AM.
53-11 alltheway is offline   Reply With Quote
Old 11-29-04, 06:57 AM   #2
Trey
Esquire
 
Join Date: Aug 2003
Location: Tennessee
Bikes:
Posts: 109
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Supposedly SRAM has changed their ratios for '05. I read something over at MTBR.com that showed a 30 to 34 tooth jump I believe. I prefer the 11-32 cassettes anyway.

I used the PG-990's THey are only $35 vs the $65-$70 for XT Cassettes so I don't feel like dropping to the PG-970 is much of a savings.

Trey
Trey is offline   Reply With Quote
Old 11-29-04, 07:35 AM   #3
53-11 alltheway
Senior Member
Thread Starter
 
Join Date: Sep 2004
Bikes:
Posts: 2,057
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Trey
Supposedly SRAM has changed their ratios for '05. I read something over at MTBR.com that showed a 30 to 34 tooth jump I believe. I prefer the 11-32 cassettes anyway.

I used the PG-990's THey are only $35 vs the $65-$70 for XT Cassettes so I don't feel like dropping to the PG-970 is much of a savings.

Trey
I was actually hoping the 28 to 34 jump worked OK. I don't think I'd mind a big gap at the end of the cassette....besides in the lowest gears 4 teeth doesn't really change the gear inches that much.
53-11 alltheway is offline   Reply With Quote
Old 11-29-04, 07:38 AM   #4
wonder squirrel
Senior Member
 
Join Date: Jun 2004
Bikes:
Posts: 216
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by 53-11 alltheway
I am here to ask a sincere question.....not to spam you..LOL

I noticed that shiamno and SRAM have totally diffferent ratios for there 11-34 cassettes.

Shimano 11-13-15-17-20-23-26-30-34

SRAM 11-12-14-16-18-21-24-28-34

SRAM most notably has 6 tooth gap at end of cassette 28-34....any problems with the shifting from 28 to 34? How good would you expect the 28 to 34 (or 34 to 28)shift be under load with XT rear derailleur?

P.S. I was reading about SRAM cassettes bending in the bigger cogs..possibly due to the 34 not having enough support. Any truth?

SRAM 9.0 cassettes any good or should I just stick with XT? What about the 7.0 cassettes....were they better?

Also what is the diffrence in quality between PG-950,970,990? Is the PG-990 worth it or should I just save my money and get a PG-950 or PG- 970?
I have the PG-970 12-34T cassette with Deore derailer, I don't have problems shifting into the larger cog (although my upper pulley comes in slight contact to the largest cog). I don't shift under load though (heavy weight + muscle + BIG jump in shift = empty wallet after I'm done fixin' broken parts.
wonder squirrel is offline   Reply With Quote
Old 11-29-04, 07:40 AM   #5
Trey
Esquire
 
Join Date: Aug 2003
Location: Tennessee
Bikes:
Posts: 109
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The only 11-34 SRAM PG-990 I have rideen worked fine. I had no issues going from 28 to 34 but there are plenty of others I have read about that have complaints about the jump.
Trey is offline   Reply With Quote
Old 11-29-04, 07:59 AM   #6
phantomcow2
la vache fantôme
 
phantomcow2's Avatar
 
Join Date: Aug 2004
Location: NH
Bikes:
Posts: 6,266
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I also have had no issues with my 7.0 cassette, and x7 derailleur though. The SRAM cassettes are almost half the price of the Shimano anyways
phantomcow2 is offline   Reply With Quote
Old 11-29-04, 09:54 AM   #7
late
Senior Member
 
late's Avatar
 
Join Date: Oct 2002
Location: Southern Maine
Bikes:
Posts: 8,388
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 353 Post(s)
Hi,
I don't think I saved all that much going to a Sram cassette.
I don't think it looks as nice, or shifts as nice. But it's ok.
When it wears out, I'll prob go back to Shimano.
late is offline   Reply With Quote
Old 11-29-04, 09:59 AM   #8
catatonic
Chairman of the Bored
 
catatonic's Avatar
 
Join Date: May 2004
Location: St. Petersburg, FL
Bikes: 2004 Raleigh Talus, 2001 Motobecane Vent Noir (Custom build for heavy riders)
Posts: 5,825
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by 53-11 alltheway
I was actually hoping the 28 to 34 jump worked OK. I don't think I'd mind a big gap at the end of the cassette....besides in the lowest gears 4 teeth doesn't really change the gear inches that much.
the 7-sp shimano "tourney" mega-range cassette has an even larger jump, and it works just fine for a while. Only thing allowing it to work so well is the deep ramps on that cog.
catatonic is offline   Reply With Quote
Old 11-29-04, 11:01 AM   #9
notfred
Senior Member
 
Join Date: Aug 2004
Location: San Francisco, CA
Bikes:
Posts: 1,169
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
I have the 11-34 PG-990 cassette on my bike and it shifts just fine with my Sram x.9 derailleur.
notfred is offline   Reply With Quote
Old 11-29-04, 11:13 AM   #10
53-11 alltheway
Senior Member
Thread Starter
 
Join Date: Sep 2004
Bikes:
Posts: 2,057
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by wonder squirrel
I don't shift under load though (heavy weight + muscle + BIG jump in shift = empty wallet after I'm done fixin' broken parts.
I love it!.....LOL....I can sense there is more testosterone in this forum compared to Road Forum. Don't get me started about the average Roadie's mannerisms....cuz, uhh....nevermind.
53-11 alltheway is offline   Reply With Quote
Old 11-29-04, 11:16 AM   #11
53-11 alltheway
Senior Member
Thread Starter
 
Join Date: Sep 2004
Bikes:
Posts: 2,057
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by catatonic
the 7-sp shimano "tourney" mega-range cassette has an even larger jump, and it works just fine for a while. Only thing allowing it to work so well is the deep ramps on that cog.
there was a 7 speed freewheel 11-34.....it had a 24 to 34 jump for the last gear.....LOL.(10T diffference!!)...shifting the last gear must have been like shifting a chainring!
53-11 alltheway is offline   Reply With Quote
Old 11-29-04, 11:26 AM   #12
catatonic
Chairman of the Bored
 
catatonic's Avatar
 
Join Date: May 2004
Location: St. Petersburg, FL
Bikes: 2004 Raleigh Talus, 2001 Motobecane Vent Noir (Custom build for heavy riders)
Posts: 5,825
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
yep, that's hte exact jump, 10t...except this was a 14-34.

The shift is far easier to deal with if you have a "rapid-rise" style deraileur, or low-normal as some call it. If you do, it's pretty much like shifting any other gear, but takes a little bit more time. I reccomend shifting in the center chainring if you do. If your on a MTB and are in the granny gear, it's going to be a very slow shift.
catatonic is offline   Reply With Quote
Old 11-30-04, 06:59 AM   #13
TimB
Senior Member
 
Join Date: Feb 2003
Bikes:
Posts: 1,012
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I use Shimano cassettes on both my bikes, one SRAM equiped the other XTR equipped.
When I had the X.9 cassette, I could feel the shift was not as crisp as with a Shiamno so I've kept using Shimano XT or higher cassettes.

11-32 ratio though
TimB is offline   Reply With Quote
Old 11-30-04, 12:18 PM   #14
stapfam
Time for a change.
 
stapfam's Avatar
 
Join Date: Jan 2004
Location: 6 miles inland from the coast of Sussex, in the South East of England
Bikes: Dale MT2000. Bianchi FS920 Kona Explosif. Giant TCR C. Boreas Ignis. Pinarello Fp Uno.
Posts: 19,915
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by 53-11 alltheway
Shimano 11-13-15-17-20-23-26-30-34

SRAM 11-12-14-16-18-21-24-28-34

SRAM most notably has 6 tooth gap at end of cassette 28-34....any problems with the shifting from 28 to 34? How good would you expect the 28 to 34 (or 34 to 28)shift be under load with XT rear derailleur?

P.S. I was reading about SRAM cassettes bending in the bigger cogs..possibly due to the 34 not having enough support. Any truth?

?
I have only used 11/32 on the solo, Shimano XT of course, and never have any problems. In fact I don't think there is even a necessity for the 32, with a 22t front sprocket. That lowest gear is only for when I have had enough and now want to rest for the final steep bit of the hill. To go to a 34t would not be necessary.

However, I also have a Mountain Tandem and we run a 24 t front sprocket, and do occasionally want a lower gear than a 32 on the rear. I bought a Shimano XT12/34 for this reason, but it now sits as a spare. We bent it first time out up the first hill. Don't know if the SRAM have a tendency to bend, but The Shimano did not stand up to it. Incidentally, this was a 5 arm spider on the cassette, and not the 4 arm that was prone to bending
stapfam is offline   Reply With Quote
Old 11-30-04, 12:35 PM   #15
Bobatin
Senior Member
 
Bobatin's Avatar
 
Join Date: Oct 2002
Location: Newnan, GA
Bikes:
Posts: 402
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have had the SRAM and the Sh XT 11-32 I liked the SRAM better. I realy cant see a need for the 34 and have considered going to a 11-25. I cannot understand why 53-11 would need a 34
Bobatin is offline   Reply With Quote
Old 11-30-04, 04:15 PM   #16
qmsdc15
Banned
 
Join Date: Mar 2004
Location: Maryland
Bikes: rockhopper, delta V, cannondale H300, Marin Mill Valley
Posts: 5,155
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by 53-11 alltheway
I love it!.....LOL....I can sense there is more testosterone in this forum compared to Road Forum. Don't get me started about the average Roadie's mannerisms....cuz, uhh....nevermind.
Any left-over testosterone will leave your body the minute you ride a bike with a 34 tooth cog.
qmsdc15 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 03:49 PM.