Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

sram 970 cassette with 11t question.

Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

sram 970 cassette with 11t question.

Old 08-24-09, 04:15 PM
  #1  
bluenote157
Senior Member
Thread Starter
 
bluenote157's Avatar
 
Join Date: Apr 2006
Location: Orange County CA
Posts: 963

Bikes: Surly CC, Raleigh Team Pro, Specialized Rockhopper with an xtracycle

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
sram 970 cassette with 11t question.

I just bought a used 11/23t 9 speed sram 970 cassette. Do the 11t versions have a different lockring? I'm wondering if the previous owner swapped it out as the lockring's perimeter lines up pretty close to the 11t cog's "valley"(i dont know what it would be called??).
bluenote157 is offline  
Old 08-24-09, 04:24 PM
  #2  
FBinNY 
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 36,097

Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

Mentioned: 126 Post(s)
Tagged: 1 Thread(s)
Quoted: 4435 Post(s)
Likes: 0
Liked 184 Times in 121 Posts
Yes, the 11t cassettes come with a smaller diameter lockring made to clear the chain.

Figure you need about 2mm clearance between the root of the cog and the lockring. If you're not sure you have enough room, take a piece of chain and wind in on the 11t cog and see if it clears. If not, you can file or grind the lockring's OD down a bit.

Note: different chains have different width plates (the rollers are always the same) so one chain may work while another might not.
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is offline  
Old 08-24-09, 04:24 PM
  #3  
AEO
Senior Member
 
AEO's Avatar
 
Join Date: Jun 2007
Location: A Coffin Called Earth. or Toronto, ON
Posts: 12,258

Bikes: Bianchi, Miyata, Dahon, Rossin

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 5 Times in 5 Posts
there are specific lockrings for 11T, 12T, 13T and above 14T

it should say "11T" on the lockring, and it's pretty normal for the lockring to be pretty close to the vallies in the cog.
__________________
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
https://sanfrancisco.ibtimes.com/arti...ger-photos.htm
AEO is offline  
Old 08-24-09, 04:31 PM
  #4  
bluenote157
Senior Member
Thread Starter
 
bluenote157's Avatar
 
Join Date: Apr 2006
Location: Orange County CA
Posts: 963

Bikes: Surly CC, Raleigh Team Pro, Specialized Rockhopper with an xtracycle

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
cool.. thanks guys!
bluenote157 is offline  
Old 08-24-09, 07:23 PM
  #5  
Al1943
Senior Member
 
Join Date: Feb 2005
Location: Oklahoma
Posts: 9,438

Bikes: Trek 5500, Colnago C-50

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 4 Times in 3 Posts
Originally Posted by AEO View Post
there are specific lockrings for 11T, 12T, 13T and above 14T

it should say "11T" on the lockring, and it's pretty normal for the lockring to be pretty close to the vallies in the cog.
Really? 12, 13, and 14 Shimano 9-speed lockrings are all the same.
Al1943 is offline  
Old 08-24-09, 10:41 PM
  #6  
bluenote157
Senior Member
Thread Starter
 
bluenote157's Avatar
 
Join Date: Apr 2006
Location: Orange County CA
Posts: 963

Bikes: Surly CC, Raleigh Team Pro, Specialized Rockhopper with an xtracycle

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
can someone confirm if an 11t sram lockring will always have "11t" on it??
thanks
bluenote157 is offline  
Old 08-25-09, 08:40 AM
  #7  
ginsoakedboy
Banned
 
Join Date: Dec 2004
Posts: 616
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
No, but I have the 12t version of the PG970 and it doesn't say 12t on it - at least not on the face side.
ginsoakedboy is offline  
Old 08-25-09, 05:26 PM
  #8  
bluenote157
Senior Member
Thread Starter
 
bluenote157's Avatar
 
Join Date: Apr 2006
Location: Orange County CA
Posts: 963

Bikes: Surly CC, Raleigh Team Pro, Specialized Rockhopper with an xtracycle

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
ok..i figured it out.. i had the seller look at whats on his ride and he has a 12/26t cassette.. but the locring says 11t 970. So that confirms it. He's sending it to me.

Thanks all
bluenote157 is offline  
Old 08-25-09, 05:50 PM
  #9  
AEO
Senior Member
 
AEO's Avatar
 
Join Date: Jun 2007
Location: A Coffin Called Earth. or Toronto, ON
Posts: 12,258

Bikes: Bianchi, Miyata, Dahon, Rossin

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 5 Times in 5 Posts
Originally Posted by Al1943 View Post
Really? 12, 13, and 14 Shimano 9-speed lockrings are all the same.
oops, you're right. lockrings for 11T and for 12T and above.
__________________
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
https://sanfrancisco.ibtimes.com/arti...ger-photos.htm
AEO is offline  

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.