Advertise on Bikeforums.net



User Tag List

Results 1 to 10 of 10
  1. #1
    Fail Boat crewman
    Join Date
    Feb 2011
    Location
    PDX
    My Bikes
    Reynolds 853 Jamis Quest 1990s
    Posts
    676
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    If it extended the time between tune ups.....

    Would you install ceramic loose ball bearings in your commuter hubs?

    Understanding that there are no real performance gains in the commuter range unless you commute 100 miles or more.

    I spoke to Boca Bearings and asked them about water, maintenance, grease, and life span in steel or alu races.

    Basically they wont rust, grease is optional and it can be any bearing grease, and the bearings will actually outlive the races. Some papers even suggest that the races will wear better with ceramic. I assume this is because the #5 ceramic bearings are smoother, aka rounder, than #25 steel bearings.

    My bike is like my car. I put in quality parts so that I don't have to screw around with it and things tend to go sideways less often.

    Yes I understand that #25 steel would be just fine and has been for years. However, you still have to grease them and if the are soaked in water as happens here in the PacNW you can develop all kinds of issues later.

    Just a thought.

  2. #2
    Senior Member
    Join Date
    Dec 2010
    Location
    northern Deep South
    My Bikes
    Fuji Touring, Novara Randonee
    Posts
    1,910
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Time for a cost/benefit analysis. Me? No, I only repack once a year or so. If I could get a complete set of bearings for the bike for $10-20, I might think about it. IIRC, the ceramic bearings are about $10 a pop; $400 for a bike? That's what cold, wet Saturdays in winter are made for, repack the bike's bearings so you can't go for a ride.

  3. #3
    On a Mission from God FunkyStickman's Avatar
    Join Date
    Oct 2009
    Location
    Thibodaux, LA
    My Bikes
    Custom chopper, Surly LHT
    Posts
    1,990
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Not worth the money. Nice, but not worth it.

  4. #4
    Fail Boat crewman
    Join Date
    Feb 2011
    Location
    PDX
    My Bikes
    Reynolds 853 Jamis Quest 1990s
    Posts
    676
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Bearings for 20 3/16" loose balls $32

    Bearings for 18 1/4" loose balls $40

    All bearings are grade 5 Silicon Nitide?? Si3N4 for you chemistry people.

    I am sure if you asked you could get grade 3, but that would be silly.

    $72 for peace of mind re your bearings, races, and rollability.

  5. #5
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    3,196
    Mentioned
    46 Post(s)
    Tagged
    0 Thread(s)
    Would you install ceramic loose ball bearings in your commuter hubs?
    No, the sealed bearings used in mine are good enough.. Schmidt, Rohloff.

    the races will still pit, with contamination from grit..

  6. #6
    GATC
    Join Date
    Jul 2006
    Location
    south Puget Sound
    Posts
    6,619
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by fietsbob View Post
    the races will still pit, with contamination from grit..
    if the bearing don't fit you must grease it

  7. #7
    Fail Boat crewman
    Join Date
    Feb 2011
    Location
    PDX
    My Bikes
    Reynolds 853 Jamis Quest 1990s
    Posts
    676
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by fietsbob View Post
    the races will still pit, with contamination from grit..
    I actually read somewhere that due to the hardness of the balls that they will grind the dirt finer and reduce the wear on the races and balls.

    Not real sure I buy that.

  8. #8
    Senior Member
    Join Date
    Jul 2008
    Posts
    2,133
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I can get a whole wheelset with Mavic A319 rims and XT hubs with 36 spokes for $200. I can go 5 years on them without any maintenance. To me, the ROI of ceramic bearings is way too low for commuting. On a racing bike, maybe, but not for a commuter.

  9. #9
    Seņior Member ItsJustMe's Avatar
    Join Date
    Sep 2005
    Location
    Michigan
    My Bikes
    Windsor Fens, Giant Seek 0 (2014, Alfine 8 + discs)
    Posts
    11,815
    Mentioned
    6 Post(s)
    Tagged
    0 Thread(s)
    Well, I have 24,000 miles on my bike, about 10,000 on the current set of $100 each wheels, and the extent of maintenance so far has been to power wash the bike a dozen times a year or so. I've never even repacked. And as far as I can tell, everything's still running fine.

    I have not had a tuneup either. I have replaced the bottom bracket once. I'm on the 2nd front wheel but just because I switched to discs, and the 3rd rear, first rear was factory junk and broke spokes, the 2nd I built but the axle broke after about 13,000 miles. Never had any trouble with wheel bearings.

    So I guess no, I wouldn't pay any extra for ceramic bearings.
    Work: the 8 hours that separates bike rides.

  10. #10
    Gears? CliftonGK1's Avatar
    Join Date
    Jul 2006
    Location
    Philadelphia, PA
    My Bikes
    '08 Surly Cross-Check, 2011 Redline Conquest Pro, 2012 Spesh FSR Comp EVO, 2009 Spesh Singlecross
    Posts
    11,348
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by I_like_cereal View Post
    $72 for peace of mind re your bearings, races, and rollability.
    $25 gets me a full replacement set of cartridge bearings, front and rear. Even if I replace them after every single CX season that's 3 years worth for $75, and no farting around with cleaning and repacking. Slide hammer the old ones out and press the new ones in: 5 minutes, including the time it takes to put my bike on the stand and remove the wheels.
    If I was racing Cat1 or Cat2 and really looking for performance advantages, I'd consider it. But for schlumpy here-for-the-beer class racing, nah. Can't justify the cost.
    "I feel like my world was classier before I found cyclocross."
    - Mandi M.

Posting Permissions

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