Advertise on Bikeforums.net



User Tag List

Results 1 to 9 of 9
  1. #1
    Senior Member Cyclologist's Avatar
    Join Date
    Apr 2006
    My Bikes
    Cannondale CAAD8 with Ultegra/105, Ksyrium Elites, Powertap Pro, Toupe saddle, and Thomson X2 stem (gotta have something Thomson); Felt F65, Trek SU200, Trek 7300 FX
    Posts
    267
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Bearing size for front Shimano WH-R550

    Got a nasty crunchy grinding sound in the front hub of a BRAND NEW set of Shimano WH-R550 wheels. Spoke with my LBS shop owner who suggested I try repacking the hubs first to see if that helps. Can anyone verify the size of the bearings for the the front hub of this beast? How about the number of bearings?

  2. #2
    Senior Member
    Join Date
    Feb 2006
    Posts
    727
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    not sure this will help; but try this e-bay post: http://cgi.ebay.com/Ceramic-balls-hu...QQcmdZViewItem

  3. #3
    Senior Member Cyclologist's Avatar
    Join Date
    Apr 2006
    My Bikes
    Cannondale CAAD8 with Ultegra/105, Ksyrium Elites, Powertap Pro, Toupe saddle, and Thomson X2 stem (gotta have something Thomson); Felt F65, Trek SU200, Trek 7300 FX
    Posts
    267
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by ebay listing
    56x3/16” = $96.32

    (7800 hub/wheel set)

    28x5/32” + 26x3/16” = $92.88

    (7801 wheel set)

    22x3/16” + 18x1/4” = $68.80

    (6600 Ultegra hubs, 5600 105 hubs, WH-5600, WH-R561, WH-R550, WH-R500, M960 XTR, M760 XT etc)


    22x3/16” + 34x5/32” = $96.32

    (2007 WH-6600, WH-R601)

    60x5/32” = $103.20

    (newer campy adjustable hubs, Zonda, Eurus, Neutron, Hyperon, Bora etc)

    28x7/32” + 9x1/4” = $63.64

    (older Campy hubs, check your hubs’ specs)
    Since they don't explicitly state it, which is safe to assume is the front? 3/16?

  4. #4
    It is fantastic. voltman's Avatar
    Join Date
    Aug 2005
    Location
    The OC
    My Bikes
    05 Specialized Allez Elite; 06 Fuji Team Pro
    Posts
    7,978
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Just exchange them. There's no reason you should be doing anything to a brand new set of wheels.

  5. #5
    Senior Member Cyclologist's Avatar
    Join Date
    Apr 2006
    My Bikes
    Cannondale CAAD8 with Ultegra/105, Ksyrium Elites, Powertap Pro, Toupe saddle, and Thomson X2 stem (gotta have something Thomson); Felt F65, Trek SU200, Trek 7300 FX
    Posts
    267
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by voltman
    Just exchange them. There's no reason you should be doing anything to a brand new set of wheels.
    I didn't get them from my LBS. They came off a brand new bike I bought at closeout through a shop through eBay. To me, it would be more trouble to try to ship wheels around than it would be to swap out the bearings and regrease, if that might do the trick.

  6. #6
    Sometimes knows stuff. rmfnla's Avatar
    Join Date
    May 2005
    Location
    La La Land (We love it!)
    My Bikes
    Gilmour road, Curtlo road
    Posts
    2,538
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Odds are VERY good they are just improperly adjusted.

    Many factory wheels come with the bearings too tight, the thinking being that they will "break in" (if you call that thinking).

    Try loosening them up until there is a slight bit of play when they are off the bike; tightening the QR will take up that play and they will be perfect.

    At worst you might have to repack them (I would anyhow, but that's 'cause I'm anal) but I seriously doubt the balls need to be replaced.

    FWIW, I think the 550s are the most unappreciated bargain in cycling.
    Today, I believe my jurisdiction ends here...

  7. #7
    Senior Member
    Join Date
    Apr 2006
    Posts
    263
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    By all means take 'm open and look.

    The balls are 3/16, yes, I can verify. You'll need a weird 17mm cone wrench to disassemble the front wheel (thanks, Shimano).

    I know all these things since I had a new R550 front with about 700 miles on it that started crunching. Took it apart for a repack (which seemed odd, hell at 700 miles?) and discovered there was a pit on a cone.

    (Denouement: the LBS I bought the bike from were turds and even tho it was under warranty (less than one year from time of purchase) they wouldn't even warrantee me the lousy cone. JUST THE CONE! So I sent the cone back to Shimano (consumer warranty!) and they sent me a whole axle assembly, postpaid and no questions asked. Considering all the LBS woulda had to do was send that $5 part back to Shimano just like I did myself, guess where I won't be spending a dime in the future.)

  8. #8
    rebmeM roineS JanMM's Avatar
    Join Date
    Jan 2006
    Location
    Indiana
    My Bikes
    RANS V3, RANS V-Rex, RANS Screamer
    Posts
    11,128
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    that is poor customer service! It's been my experience that hubs often come adjusted too tight. A job with good attention to details would prevent that from happening.

  9. #9
    Sometimes knows stuff. rmfnla's Avatar
    Join Date
    May 2005
    Location
    La La Land (We love it!)
    My Bikes
    Gilmour road, Curtlo road
    Posts
    2,538
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by bjkeen
    By all means take 'm open and look.

    The balls are 3/16, yes, I can verify. You'll need a weird 17mm cone wrench to disassemble the front wheel (thanks, Shimano).

    I know all these things since I had a new R550 front with about 700 miles on it that started crunching. Took it apart for a repack (which seemed odd, hell at 700 miles?) and discovered there was a pit on a cone.

    (Denouement: the LBS I bought the bike from were turds and even tho it was under warranty (less than one year from time of purchase) they wouldn't even warrantee me the lousy cone. JUST THE CONE! So I sent the cone back to Shimano (consumer warranty!) and they sent me a whole axle assembly, postpaid and no questions asked. Considering all the LBS woulda had to do was send that $5 part back to Shimano just like I did myself, guess where I won't be spending a dime in the future.)
    Spend a weekend in that store sharing your experience with people shopping for new bikes...

    Today, I believe my jurisdiction ends here...

Posting Permissions

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