Advertise on Bikeforums.net



User Tag List

Results 1 to 15 of 15
  1. #1
    rhm
    rhm is offline
    multimodal commuter rhm's Avatar
    Join Date
    Nov 2006
    Location
    NJ, NYC, LI
    My Bikes
    1945? Fothergill, 1948 Raleigh Record Ace, 1954 Drysdale, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1972 Fuji Finest, 1983 Trek 720, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...
    Posts
    12,204
    Mentioned
    21 Post(s)
    Tagged
    1 Thread(s)

    Who has an XRF8w hub?

    A friend of mine recently got a bike with an XRF8w hub and he mentioned that it is noisy in all gears above 3 or so.

    I have one as well, and mine, too, is noisy in the higher gears.

    I never had that experience with an XRF8, though (and I've had three).

    So my question is, is the XRF8w always noisy, or are these two just defective? Does the noise ever go away? Mine has only about 2500 miles on it.

  2. #2
    Senior Member
    Join Date
    Apr 2005
    Location
    Philadelphia PA
    Posts
    464
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I haven't ridden it in two months since the frame broke, but I had the XRF8w in my Downtube 8H (it replaced the original non-W).

    It was somewhat noisy in gear 4, and 6 if I remember correctly, and a little less so in 5,7,8.
    Since it was direct drive in gear 1 and various combinations of 1/2/3 sets of gears in the other speeds, I presumed it was just normal mechanical noise. I had about 3000 miles on the gear.

  3. #3
    tcs
    tcs is offline
    Palmer tcs's Avatar
    Join Date
    Mar 2007
    Location
    Parts unknown
    Posts
    4,142
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Yeah, just the typical stage B gear whine.
    "When man first set woman on two wheels with a pair of pedals, did he know, I wonder, that he had rent the veil of the harem in twain? A woman on a bicycle has all the world before her where to choose; she can go where she will, no man hindering." The Typewriter Girl, 1899.

    "Every so often a bird gets up and flies some place it's drawn to. I don't suppose it could tell you why, but it does it anyway." Ian Hibell, 1934-2008

  4. #4
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    38,912
    Mentioned
    20 Post(s)
    Tagged
    0 Thread(s)
    Above 1st they are, after-all running thru different overdrive gear combinations..

  5. #5
    Senior member Dan Burkhart's Avatar
    Join Date
    Oct 2004
    Location
    Oakville Ontario
    Posts
    4,837
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    This video will explain the noises, and why they change from gear to gear. When I re-assembled the hub, I dosed it with ATF to replace the grease. It's still noisy, but noticeably quieter and smoother than before.

    Gearhubs demystified and other cool stuff.


    Rule #12: The correct number of bikes to own is n+1

  6. #6
    Senior Member
    Join Date
    Sep 2012
    Posts
    158
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    the only thing worse than the noise is the weight of this hub. feels like pedaling with a lead weight attached to your wheel. and the gearing is too high. gears 5 thru 8 are practically useless. it desperately needs a lower gear range.

    in a word, it sucks.

  7. #7
    Senior Member
    Join Date
    Dec 2001
    Location
    New Jersey
    Posts
    6,127
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by northernlights View Post
    the only thing worse than the noise is the weight of this hub. feels like pedaling with a lead weight attached to your wheel. and the gearing is too high. gears 5 thru 8 are practically useless. it desperately needs a lower gear range.

    in a word, it sucks.
    I think it's important to get gear 5 as your direct drive leaving you only 3 high gears. However, I'm not sure if SA recommends using a small chainring to do this. All hub gears are heavy and it's something you have to live with. This is why I prefer the SA 3 speed because it weights very little but I live with the friction loss.

  8. #8
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    38,912
    Mentioned
    20 Post(s)
    Tagged
    0 Thread(s)
    Given this is the folding bike section.. a small wheel and a nearly same size cog on rear
    19,21, or 23T listed, and a quite small chainring , as well .. like a 24 T, perhaps ?
    may be what you need to bring the gear range down to useful ..

    Big wheel already starts you off with a tall 1st gear..

  9. #9
    rhm
    rhm is offline
    multimodal commuter rhm's Avatar
    Join Date
    Nov 2006
    Location
    NJ, NYC, LI
    My Bikes
    1945? Fothergill, 1948 Raleigh Record Ace, 1954 Drysdale, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1972 Fuji Finest, 1983 Trek 720, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...
    Posts
    12,204
    Mentioned
    21 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by northernlights View Post
    the only thing worse than the noise is the weight of this hub. feels like pedaling with a lead weight attached to your wheel. and the gearing is too high. gears 5 thru 8 are practically useless. it desperately needs a lower gear range.

    in a word, it sucks.
    It sounds to me like you have your bike geared wrong.

    The reason this hub gets discussed in the folding bikes forum is that it is the ideal hub for a folding bike. If it is not ideal for other bikes, well, that is something to discuss in another forum.

  10. #10
    psi
    psi is offline
    Junior Member
    Join Date
    Sep 2009
    Posts
    22
    Mentioned
    2 Post(s)
    Tagged
    1 Thread(s)
    I for one had no idea that internal hubs with so many overdrive gears existed before I saw this thread. Sounds like a cool piece of technology to have on a small wheeled bike.

  11. #11
    dck
    dck is offline
    Senior Member
    Join Date
    Sep 2005
    Location
    The Peninsula
    My Bikes
    '62 Peugeot UO8, '63 Schwinn Superior, ;72 Peugeot PX-10, '74 Motobecane LeChampion, '74 Motobecane Grand Jubile, '74 Peugeot UO18, '81 Fuji S12-S Mixte
    Posts
    619
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I put an XRF5w on my Dahon Boardwalk and it seems to run pretty quiet in all gears. It also has plenty of range for my needs.

  12. #12
    rhm
    rhm is offline
    multimodal commuter rhm's Avatar
    Join Date
    Nov 2006
    Location
    NJ, NYC, LI
    My Bikes
    1945? Fothergill, 1948 Raleigh Record Ace, 1954 Drysdale, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1972 Fuji Finest, 1983 Trek 720, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...
    Posts
    12,204
    Mentioned
    21 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by psi View Post
    I for one had no idea that internal hubs with so many overdrive gears existed before I saw this thread. Sounds like a cool piece of technology to have on a small wheeled bike.
    Oh, it is. I have logged about 18,000 miles on three of these (well, two were the earlier version) over the last five years.

    Quote Originally Posted by dck View Post
    I put an XRF5w on my Dahon Boardwalk and it seems to run pretty quiet in all gears. It also has plenty of range for my needs.
    The XRF5w is definitely nice and, I agree, quieter. I assume it makes for a very efficient transmission. But there's something special about the XRF8, because its closely spaced gears allow you to restrict your pedaling cadence to a very narrow range, which makes for more efficient pedaling. I like them both.
    Last edited by rhm; 10-04-12 at 08:10 AM.

  13. #13
    Senior member Dan Burkhart's Avatar
    Join Date
    Oct 2004
    Location
    Oakville Ontario
    Posts
    4,837
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by rhm View Post
    Oh, it is. I have logged about 18,000 miles on three of these (well, two were the earlier version) over the last five years.



    The XRF5w is definitely nice and, I agree, quieter. I assume it makes for a very efficient transmission. But there's something special about the XRF8, because its closely spaced gears allow you to restrict your pedaling cadence to a very narrow range, which makes for more efficient pedaling. I like them both.
    The middle 6 are closely and evenly spaced, but there is a big jump from 1st to 2nd, and from 7th to 8th.
    Gearhubs demystified and other cool stuff.


    Rule #12: The correct number of bikes to own is n+1

  14. #14
    tcs
    tcs is offline
    Palmer tcs's Avatar
    Join Date
    Mar 2007
    Location
    Parts unknown
    Posts
    4,142
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by northernlights View Post
    the only thing worse than the noise is the weight of this hub. feels like pedaling with a lead weight attached to your wheel. and the gearing is too high. gears 5 thru 8 are practically useless. it desperately needs a lower gear range.
    Here's the way mine is set up, using Sturmey's FCS80 crank that was developed to go with the hub. It's geared 31-100 gear inches, in a very similar pattern and range to the millions of '10 speed' bikes sold during the 1960s and 70s. The weight of the various versions (actual, not advertised) is within pocket change one way or the other of Shimano's eight-speed hubs.

    S-A XRK8(W).jpg
    "When man first set woman on two wheels with a pair of pedals, did he know, I wonder, that he had rent the veil of the harem in twain? A woman on a bicycle has all the world before her where to choose; she can go where she will, no man hindering." The Typewriter Girl, 1899.

    "Every so often a bird gets up and flies some place it's drawn to. I don't suppose it could tell you why, but it does it anyway." Ian Hibell, 1934-2008

  15. #15
    Senior member Dan Burkhart's Avatar
    Join Date
    Oct 2004
    Location
    Oakville Ontario
    Posts
    4,837
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by tcs View Post
    Here's the way mine is set up, using Sturmey's FCS80 crank that was developed to go with the hub. It's geared 31-100 gear inches, in a very similar pattern and range to the millions of '10 speed' bikes sold during the 1960s and 70s. The weight of the various versions (actual, not advertised) is within pocket change one way or the other of Shimano's eight-speed hubs.

    S-A XRK8(W).jpg
    Mine is set up almost the same. 30/25 on 700 x 32c.
    Gearhubs demystified and other cool stuff.


    Rule #12: The correct number of bikes to own is n+1

Posting Permissions

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