Advertise on Bikeforums.net



User Tag List

Results 1 to 10 of 10
  1. #1
    Cabrőnista™ dprayvd's Avatar
    Join Date
    Jun 2002
    Location
    a high fructose corn, olé!
    Posts
    436
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    8spd freehub with 7spd cluster?

    ...
    Last edited by dprayvd; 11-26-13 at 09:33 AM.
    .


    What is 50 miles of good road? Yes, I call it a very easy distance.

  2. #2
    Domestic Domestique UnsafeAlpine's Avatar
    Join Date
    Dec 2007
    Location
    Michigan
    My Bikes
    Brand New Old Catamount! Schwinn Homegrown, Specialized FSR, Salsa Vaya, Salsa Chile Con Crosso
    Posts
    1,736
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    According to Sheldon, all you need to do is add a 4.5 mm spacer.

  3. #3
    Cabrőnista™ dprayvd's Avatar
    Join Date
    Jun 2002
    Location
    a high fructose corn, olé!
    Posts
    436
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    ...
    Last edited by dprayvd; 11-26-13 at 09:33 AM.
    .


    What is 50 miles of good road? Yes, I call it a very easy distance.

  4. #4
    Domestic Domestique UnsafeAlpine's Avatar
    Join Date
    Dec 2007
    Location
    Michigan
    My Bikes
    Brand New Old Catamount! Schwinn Homegrown, Specialized FSR, Salsa Vaya, Salsa Chile Con Crosso
    Posts
    1,736
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    No problem, any time I can pass along the wisdom of someone else, I'll do it!

  5. #5
    Senior Member Retro Grouch's Avatar
    Join Date
    Feb 2004
    Location
    St Peters, Missouri
    My Bikes
    Rans Enduro Sport, Hase Kettweisel Tandem, Merin Bear Valley beater bike
    Posts
    23,903
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Actually there's a bit more to it than that.

    If you examine your cassette carefully you may find that it's held together with some small bolts or rivets that project out on the back side. The typical 4.5mm spacer will interfere with those. Remove the little bolts or grind off the rivet heads and, if necessary, install the cassette one cog at a time.

  6. #6
    Cabrőnista™ dprayvd's Avatar
    Join Date
    Jun 2002
    Location
    a high fructose corn, olé!
    Posts
    436
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    ...
    Last edited by dprayvd; 11-26-13 at 09:33 AM.
    .


    What is 50 miles of good road? Yes, I call it a very easy distance.

  7. #7
    Senior Member Bill Kapaun's Avatar
    Join Date
    Feb 2007
    Location
    Mid Willamette Valley, Orygun
    My Bikes
    86 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.
    Posts
    7,141
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Spacer thickness- IOW no. My LBS sells the 4.5MM spacer for $2!
    http://sheldonbrown.com/k7.html#spacing

    I've taken an "E" & an "H" to make a semi corn cob.
    13-14-15-16-18-21-24

    Then I found an 8 speed FH body off a junk wheel and made eight 7 speed cogs fit by thinning the spacers- (don't use power tools)
    13-14-15-16-17-19-21-24. Love it!

  8. #8
    Cabrőnista™ dprayvd's Avatar
    Join Date
    Jun 2002
    Location
    a high fructose corn, olé!
    Posts
    436
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    ...
    Last edited by dprayvd; 11-26-13 at 09:33 AM.
    .


    What is 50 miles of good road? Yes, I call it a very easy distance.

  9. #9
    Senior Member Retro Grouch's Avatar
    Join Date
    Feb 2004
    Location
    St Peters, Missouri
    My Bikes
    Rans Enduro Sport, Hase Kettweisel Tandem, Merin Bear Valley beater bike
    Posts
    23,903
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by dprayvd View Post
    Actually, Retro Grouch, I have already done that. I've a "modified" corncob upper 5 cogs:

    12-14-15-16-18, then a 21 & 24. I lost the 28 and Dremel'd a 15 to align the ramps. The 15 is from a "M" cassette; the others from an "E."
    If I get unlazy and decide to build an 8spd rig (I've a '93 Rockhopper lump waiting, but my current rig runs without problem), I'll add an 11, or perhaps a 13.

    A question:

    --Are the 7spd spacers the requisite 4.5mm I need? Or from something else?
    Since you're already to the cassette mixing stage you probably have a drawer full of cassette spacers. The ones that go between the cogs are too narrow but I suspect that if you add one or two of the star shaped ones it'll work. The spacing between the cogs that affects the indexing is already established. All you really need to do is to fill up the space on the wider free hub body so the lock ring will keep the cassette from shifting laterally.

    Actually, if it was my bike, I think that I'd transplant the narrower 7-speed freehub body onto the new wheel. You'll have to redish the wheel, of course, but that'll make it stronger.

  10. #10
    Cabrőnista™ dprayvd's Avatar
    Join Date
    Jun 2002
    Location
    a high fructose corn, olé!
    Posts
    436
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    ...
    Last edited by dprayvd; 11-26-13 at 09:34 AM.
    .


    What is 50 miles of good road? Yes, I call it a very easy distance.

Posting Permissions

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