Results 1 to 11 of 11
  1. #1
    RoadBikeReview Member
    Reputation:
    Join Date
    Aug 2012
    Posts
    84

    DT 240 rear hub - spacer required?

    Is a spacer required between a Shimano/SRAM 10-speed cassette and the DT240 freewheel hub? I had a wheelset built up a few months back and the wheelbuilder didn't include a spacer between the cassette and freewheel. Just recently I brought the bike into a different shop and this second mechanic claimed that without the spacer I could damage the freewheel. Which way is correct?
    Last edited by human powered; 03-24-2013 at 03:28 PM.

  2. #2
    RoadBikeReview Member
    Reputation: jmess's Avatar
    Join Date
    Aug 2006
    Posts
    590
    I have Reynolds based DT240 hubs and they don't need a spacer.

  3. #3
    'brifter' is a lame word.
    Reputation: cxwrench's Avatar
    Join Date
    Nov 2004
    Posts
    7,955
    the wheels don't come w/ the spacer, the cassette does. shimano...1mm spacer. in the box w/ the cassette. sram, no spacer.
    i work for some bike racers...
    2013 Trek Madone 5.9 w/ '12 SRAM Red
    2010 Cervelo T1 sprint bike
    Ruger 10-22TD
    Smith&Wesson M&P 15-22
    Smith&Wesson M&P 9
    oh, those belong in another forum

  4. #4
    25.806975801127
    Reputation: PlatyPius's Avatar
    Join Date
    Feb 2009
    Posts
    9,781

    Re: DT 240 rear hub - spacer required?

    Quote Originally Posted by cxwrench View Post
    the wheels don't come w/ the spacer, the cassette does. shimano...1mm spacer. in the box w/ the cassette. sram, no spacer.
    ...and 240s don't use a freewheel.
    Other countries need to stop hatin' or we'll unfriend them. - Christine

    Apparently I left my reading comprehension glasses in my ass. - DrRoebuck

    Still, it felt great and I felt like I was sitting on some kind of vibrator -Touch0Gray

  5. #5
    RoadBikeReview Member
    Reputation:
    Join Date
    Aug 2012
    Posts
    84
    Quote Originally Posted by cxwrench View Post
    the wheels don't come w/ the spacer, the cassette does. shimano...1mm spacer. in the box w/ the cassette. sram, no spacer.
    Thank you! I just switched from Shimano to SRAM this afternoon, had left the spacer in, and the cogs looked a bit too far from center.

  6. #6
    RoadBikeReview Member
    Reputation: Lelandjt's Avatar
    Join Date
    Sep 2008
    Posts
    661
    The spacer should only be used if the lockring touches the freehub body without a spacer (despite tightening some play can be felt in the cassette) or if you need to make 2 different hubs have the exact same cassette location for wheel swaps.

  7. #7
    'brifter' is a lame word.
    Reputation: cxwrench's Avatar
    Join Date
    Nov 2004
    Posts
    7,955
    Quote Originally Posted by PlatyPius View Post
    ...and 240s don't use a freewheel.

    should i have said 'hub'?
    i work for some bike racers...
    2013 Trek Madone 5.9 w/ '12 SRAM Red
    2010 Cervelo T1 sprint bike
    Ruger 10-22TD
    Smith&Wesson M&P 15-22
    Smith&Wesson M&P 9
    oh, those belong in another forum

  8. #8
    25.806975801127
    Reputation: PlatyPius's Avatar
    Join Date
    Feb 2009
    Posts
    9,781

    Re: DT 240 rear hub - spacer required?

    Quote Originally Posted by cxwrench View Post
    should i have said 'hub'?
    I was piggy-backing on your post but the freewheel comment was for the OP who was calling a cassette a freewheel.
    Other countries need to stop hatin' or we'll unfriend them. - Christine

    Apparently I left my reading comprehension glasses in my ass. - DrRoebuck

    Still, it felt great and I felt like I was sitting on some kind of vibrator -Touch0Gray

  9. #9
    RoadBikeReview Member
    Reputation:
    Join Date
    Feb 2002
    Posts
    18,986
    Quote Originally Posted by PlatyPius View Post
    I was piggy-backing on your post but the freewheel comment was for the OP who was calling a cassette a freewheel.
    Not quite: he was calling the freehub a freewheel. He talked about the need for "a spacer between the cassette and freewheel."

  10. #10
    RoadBikeReview Member
    Reputation: jmess's Avatar
    Join Date
    Aug 2006
    Posts
    590
    Thanks, I never really thought about the wheel swap issue. I mic'd the hubs tonight on two different sets of wheels and found I will need to use the spacer to keep the same cassette position on one of the wheels sets. Sort of explains why I had adjustment issues after wheel swaps in the past.


    QUOTE=Lelandjt;4310178]The spacer should only be used if the lockring touches the freehub body without a spacer (despite tightening some play can be felt in the cassette) or if you need to make 2 different hubs have the exact same cassette location for wheel swaps.[/QUOTE]

  11. #11
    'brifter' is a lame word.
    Reputation: cxwrench's Avatar
    Join Date
    Nov 2004
    Posts
    7,955
    Quote Originally Posted by Kerry Irons View Post
    Not quite: he was calling the freehub a freewheel. He talked about the need for "a spacer between the cassette and freewheel."
    jesus, my eyes are going. or my brain. i didn't even notice he said 'freewheel'. i read it quickly and saw 'freehub'. now on my want list...
    1) glasses
    2) the ability to pay attention
    i work for some bike racers...
    2013 Trek Madone 5.9 w/ '12 SRAM Red
    2010 Cervelo T1 sprint bike
    Ruger 10-22TD
    Smith&Wesson M&P 15-22
    Smith&Wesson M&P 9
    oh, those belong in another forum

Similar Threads

  1. Cassette spacer required?
    By goofygoober in forum Components, Wrenching
    Replies: 8
    Last Post: 08-21-2012, 04:35 PM
  2. Make-up required
    By rose.johnp in forum The Lounge
    Replies: 13
    Last Post: 08-07-2012, 08:58 AM
  3. Is a stem spacer required
    By cpcritter in forum Specialized
    Replies: 21
    Last Post: 01-04-2011, 06:09 AM
  4. Inner spacer rear cassette
    By mroger82 in forum Components, Wrenching
    Replies: 3
    Last Post: 01-02-2011, 05:11 PM
  5. Please, opinions required.
    By Cycle_Spice in forum Bikes, Frames and Forks
    Replies: 57
    Last Post: 03-10-2008, 08:12 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Sea Otter Classic

Hot Deals

Contest


Latest RoadBike Articles


Latest Videos

RoadbikeReview on Facebook