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Conference noted::bicycle

Title: Bicycling
Notice:Bicycling for Fun
Moderator:JAMIN::WASSER
Created:Mon Apr 14 1986
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:3214
Total number of notes:31946

2119.0. "BUILDING SET OF TANDEM WHEELS" by AKOCOA::FULLER () Fri Nov 08 1991 10:56

    I am in the market to build a set of faster wheels for my tandem.
    Currently the Santana has 48 spoke, Phil Wood hubs, with drum brake.
    I would like a lighter set of wheels when we are not pulling the
    trailer or otherwise need the drum brake.  I will need 135MM spacing
    in the rear wheel.  Questions:
    
    	o How many spokes should I go with?  40 is my best guess
          (I weigh 170 and my wife 115)
    	o Has anyone seen Deore/XT, Suntour XC Pro come in 40 spoke?
    	o Will 36 spoke wheels possibly work?  Can I get axles long enough
          for campy/old dura ace hubs?
    
    Thanks
    
    steve
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2119.1CTHQ3::JENIN::FREREEllas Danzan SolasFri Nov 08 1991 12:4713
I got a set of wheels from Wheelsmiths.  The rims are Sun tandem rims (40 
spokes).  The name of the hubs escape me presently but I don't know if I 
would recommend them as we were able to bend the rear axle quite quickly.

Next set of hubs would probably be cassette as their is less "axle only area"
to take the stress.  I would stay with 40 spokes.  I would also look into
a new design that I read in an old Bicycle Guide issue (the one with the
profile on Eddy Mercks's record-breaking track bike).  The man that designed 
the titanium stem for Eddy's famous bike has a new design for rims and/or 
spokes that gives more strengths without increasing the weight.  Let me dig 
the issue up.

Eric
2119.240 spoke hubsAKOCOA::FULLERMon Nov 11 1991 14:2510
    re:.1  I have not seen 40 spoke hubs with cassette system.  Please
    let me know if you see any around.  
    
    Phil Wood's bolt on rear hub is real strong.  The hub is bolted on by
    a 6mm bolt (not a nut) that threads internally into the axle.  As a
    result, the axle is larger, thus stronger.  If only he could
    incorporate his design with a hyperglide cassette system...
    
    steve
    
2119.3Just say no to 40WMOIS::FLYE_NMon Nov 11 1991 22:4018
    
    I have had my tandem since last sping.  Since it gets used for racing
    and fast club rides I chose to go with lighter than usual tandem
    wheels.  Both front and rear have 36 hole Mavic MA2 rims, 14g. spokes
    and Specialized high flange quick release hubs.  Absolutely no problems 
    to date.  I have not even had to true the wheels yet.  The highest
    total rider weight was 330 pounds for a century that was done in
    September.  For tires I have been using Continental Super Ultrasports
    700x25 pumped up to 135 psi.  No flats yet either.  
      The problem I see with 40 hole wheels is the replacement of the rims
    in the event of their destruction.  Most bike shops do not carry 40
    hole rims.  36 and 48 are readily available.  When you are a long way 
    from home the loss of a 40 hole rim could mean the loss of a day or two
    of your precious time.  
    
    							Norm