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  1. #1
    C3 H6 O3 ACID jasandalb's Avatar
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    Need Help trying to figure out how to remove these

    So... I found this frame in a dumpster and am going to rebuild it to a single speed.
    But, I need to remove the cranks and bottom bracket.
    Anyone know how to remove these?

    The bike is a cannondale r700? these are dura ace cranks.
    both side are like this...and i think its a square taper bb.
    where do i start?

    thanks!!


  2. #2
    Real Men Ride Ordinaries fuzz2050's Avatar
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    start by removing the dust cap, you need something to fit into those two holes ( a pin spanner is the right word). I bent a fork (eating, not bicycle), but I'm sure there is a right tool for the job.

    Once the dust cap is out, you need to buy a crank puller, nothing else will do.

    screw the part of the crank puller that looks like a nut firmly into the threads in the crank, then screw the arm/lever/bolt part of the crank puller into the nut. with a few good twists it should pop right off.

    repeat on other side.

    Now where do you like that somebody throws a frame like that into a dumpster?

  3. #3
    Senior Member LesterOfPuppets's Avatar
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    As long as the dustcaps aren't on there too good, needlenose pliers sometimes work to get them off without too much mangling.

    Don't forget to remove the crank bolt/nut after the dustcap bit and before the crankpuller bit...
    1980ish Free Spirit Sunbird fixed * 1996 Mongoose IBOC Zero-G * 1997 KHS Comp * 1990-ish Scapin * Olde Western Auto Cruiser.

  4. #4
    C3 H6 O3 ACID jasandalb's Avatar
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    i live in oldpeoplesville florida.. (aka tampa bay area)
    Those dust caps are on there pretty good....

  5. #5
    Senior Member LesterOfPuppets's Avatar
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    If you want to keep the dustcaps, get one of these http://www.treefortbikes.com/283_333...-Nut-Tool.html
    1980ish Free Spirit Sunbird fixed * 1996 Mongoose IBOC Zero-G * 1997 KHS Comp * 1990-ish Scapin * Olde Western Auto Cruiser.

  6. #6
    C3 H6 O3 ACID jasandalb's Avatar
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    I probably wont. I am going to getting rid of this crankset and am going to find a single ring.

  7. #7
    Senior Member CMC SanDiego's Avatar
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    Quote Originally Posted by jasandalb View Post
    I probably wont. I am going to getting rid of this crankset and am going to find a single ring.
    If you are looking for someone to give the cranks and bottom bracket (and any other parts you don't want ) to, I think I can help you out.

    CMC

  8. #8
    C3 H6 O3 ACID jasandalb's Avatar
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    Quote Originally Posted by CMC SanDiego View Post
    If you are looking for someone to give the cranks and bottom bracket (and any other parts you don't want ) to, I think I can help you out.

    CMC
    I am actually trying to trade to get going on a single speed.
    I need a 16 tooth freewheel with spacer kit, chain tensioner and single ring crankset.
    If you know anyone....

  9. #9
    Senior Member 1fluffhead's Avatar
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    Why not just use those cranks for your SS project? They look like they would work just fine and you could easily save yourself some coin by reusing them and spend the money on a nicer set of wheels.
    Quote Originally Posted by diff_lock2 View Post
    so what if it's custom, are you suddenly NOT a jackass?

  10. #10
    car dodger norskagent's Avatar
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    Just take off the big ring, unless you must have a track specific crankset. No need to remove the cranks, or the pedals for that matter. You will need to buy some shorter bmx/track bolts if you go that route.
    1989 Schwinn Paramount OS
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    "I've consulted my sources and I'm pretty sure your derailleur does not exist"

  11. #11
    C3 H6 O3 ACID jasandalb's Avatar
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    Quote Originally Posted by norskagent View Post
    Just take off the big ring, unless you must have a track specific crankset. No need to remove the cranks, or the pedals for that matter. You will need to buy some shorter bmx/track bolts if you go that route.
    bmx/track bolts?? HUH??

    I have to take it all off because it is going to be powder coated tomorrow.

  12. #12
    Senior Member 1fluffhead's Avatar
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    Quote Originally Posted by diff_lock2 View Post
    so what if it's custom, are you suddenly NOT a jackass?

  13. #13
    Senior Member coldfeet's Avatar
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    If you found THAT frame in a dumpster, you have carefully examined it for cracks before going to the expense of powder coating?

  14. #14
    Senior Member badmother's Avatar
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    Sounds like you do not belive him. I found a 1986 Miata ninetwelve, almost mint in a dumpster. Watched the guy throwing it in. Almost did not hit the bottom before I had pulled it out of there again. All Shimano 6oo.
    °Empty drums make a lot of noice... (Old Hungarian proverb).

  15. #15
    You Know!? For Kids! jsharr's Avatar
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    And do not let them sand or blast on the frame much. Cannondales are VERY thin wall tubing.
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    Quote Originally Posted by colorider View Post
    Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.

  16. #16
    C3 H6 O3 ACID jasandalb's Avatar
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    Quote Originally Posted by coldfeet View Post
    If you found THAT frame in a dumpster, you have carefully examined it for cracks before going to the expense of powder coating?
    Already had it checked over. its fine. plus the powder coating is $45 so even if I didnt have my guy check it I wasnt that worried.

    Quote Originally Posted by badmother View Post
    Sounds like you do not belive him. I found a 1986 Miata ninetwelve, almost mint in a dumpster. Watched the guy throwing it in. Almost did not hit the bottom before I had pulled it out of there again. All Shimano 6oo.
    your 100% right! I pulled up to unload some tree limbs and crap from my lawn and watched the guy throw it in the dumpster along with some old rusty wheels and stuff.... she was calling me!

  17. #17
    Senior Member coldfeet's Avatar
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    Quote Originally Posted by jasandalb View Post
    Already had it checked over. its fine. plus the powder coating is $45 so even if I didnt have my guy check it I wasnt that worried.



    your 100% right! I pulled up to unload some tree limbs and crap from my lawn and watched the guy throw it in the dumpster along with some old rusty wheels and stuff.... she was calling me!
    No, not that I didn't believe him, just didn't believe his luck.

    P.S. OP, I hate you. ( just jealous )

  18. #18
    C3 H6 O3 ACID jasandalb's Avatar
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    no sweat cold feet. stopped by a friends shop and had him pull the bb and cranks. he told me that I will need to replace the fork.

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