Advertise on Bikeforums.net



User Tag List

Results 1 to 10 of 10
  1. #1
    Member
    Join Date
    Sep 2008
    Posts
    32
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    StrongLight cottered cranks ???

    Pulled these off an old Dawes that I'm converting into a Fixie. Don't know much about old cottered cranks. They cleaned up very nicely. Don't show much use at all. Luckily, the bike spent most of it's time in a garage. I'm trying to get a guage of their value, if any - or if I'd be better off trading them for something. Here's a few pics: Any ideas ? Bottom bracket races and bearings show little wear as well.






  2. #2
    26 tpi nut. sailorbenjamin's Avatar
    Join Date
    Mar 2008
    Location
    Rhode Island (an obscure suburb of Connecticut)
    My Bikes
    one of each
    Posts
    5,489
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    I saw a pair of cranks like that on Ebay last week, buy it now- $30.
    Somebody bought them while I was thinking about it.
    Don't know much about the rest of the stuff.
    I have spoken.

  3. #3
    feros ferio John E's Avatar
    Join Date
    Jul 2000
    Location
    www.ci.encinitas.ca.us
    My Bikes
    1959 Capo; 1980 Peugeot PKN-10; 1981 Bianchi; 1988 Schwinn KOM-10;
    Posts
    14,642
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    That crank looks almost as nice as my Agrati.
    "Early to bed, early to rise. Work like hell, and advertise." -- George Stahlman
    Capo [dschaw'-poe]: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger, S/N 42624
    Peugeot: 1970 UO-8, S/N 0010468
    Bianchi: 1981 Campione d'Italia, S/N 1.M9914
    Schwinn: 1988 Project KOM-10, S/N F804069

  4. #4
    Eschew Obfuscation SesameCrunch's Avatar
    Join Date
    Aug 2005
    Location
    San Francisco Bay Area
    My Bikes
    2005 Fuji Professional, 2002 Lemond Zurich, Folders - Strida, Merc, Dahon, Downtube, Recumbent folder
    Posts
    3,843
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    If you're selling them, I'd be interested in them for a restoration that I'm doing.

    I'll send you a private message.

  5. #5
    Banned
    Join Date
    Jan 2007
    Posts
    5,285
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Sell them to a C&Ver that wants them (not me), other than that, I don't think they have a great deal of value.

  6. #6
    Senior Member Grand Bois's Avatar
    Join Date
    Mar 2005
    Location
    Pinole, CA, USA
    Posts
    15,086
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    If those were mine, I'd use them. Everybody has cotterless cranks in their fixies. Be different!


  7. #7
    Old biker
    Join Date
    Jun 2006
    Location
    Radium Springs, NM
    My Bikes
    Custom Cammack touring road and 1987 Fisher Hoo Koo E Koo
    Posts
    252
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I have a crankset like the OP's. I like it's looks and it works perfect. Bought it off of EBay for around $18 including shipping, a set of pedals, toe clips and straps. Mine had a little rust. Yours looks brand new.

  8. #8
    Old Skeptic stronglight's Avatar
    Join Date
    Jan 2006
    Location
    New Mexico, USA
    My Bikes
    19 road bikes & 1 Track bike
    Posts
    1,044
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    That is a beautiful crankset! That particular model was produced from around 1954 and made well into 1970s. The Stronglight crank arms with that particular lettering were typically found in use as original equipment on many different bikes. Seldom found in such perfect condition. But, unfortunately actual value is probably quite low. If the bike is in comparable condition I would use the crank on your bike!

    You could actually mount the single 42t chainring alone directly on the 3-arm spider.
    The BCD of the 3-arm crank is probably 116 mm. and if you are patient you might find larger single chainrings to fit.

    DOH! ... spoke too soon! ... here is one on eBay right now which would be a beautiful match and would be VERY practical for your needs too! --> Item #140263809026

    ... 1/8" ... chrome plated steel ... 46 teeth ... sounds perfect for a fixed gear or single speed


    The axle is probably the British standard diameter of 5/8" at the ends... and with cotter pins 3/8" (9.5 mm.) ... and I would suspect the cranks even have Standard threads for 9/16" x 20 pedal axles. A shorter axle could be found or just try reversing the left and right sides to check your chain line for use with a single chainring. The typical Stronglight cottered axle total length recommended for use with a single chainring would be around 123 to 127 mm. ... but if the reversed axle is adequate to clear your chainstay just use that one and simply leave the left side crank arm sticking out a wee bit more.

  9. #9
    Senior Member Grand Bois's Avatar
    Join Date
    Mar 2005
    Location
    Pinole, CA, USA
    Posts
    15,086
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    The chainline on my Peugeot above is perfect with a Formula fixed/free hub without reversing the spindle or using washers for spacers. I actually had to omit washers to get more clearance. The teeth clear the crimped part of the chainstay by no more than 2mm. The 52 ring is perfect for me with a 22t cog. I don't understand why most fixies are built with small chainrings. Bigger gears are more efficient and wear less. The only advantage I can think of to smaller chainrings is that chain tension is higher and that makes it easier to skid, but skidding a $30 tire strikes me as stupid.

  10. #10
    Member
    Join Date
    Sep 2008
    Posts
    32
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    great info stronglight . heading to ebay as we speak (for the chain ring....not to sell).
    I was thinking of running the 52 as well...pretty flat around here. 22 or 24 as my legs aren't what they
    used to be.

    thanks
    Last edited by greenjeans; 09-08-08 at 06:30 PM.

Posting Permissions

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