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  1. #1
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    Do you use a torque wrench when adjusting seat height?

    Now that I have a carbon bike I have become paranoid (probably overly so) about torque specs. In the case of a carbon frame with alloy seatpost how necessary is a torque wrench?
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  2. #2
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    Yes, yes I do. No need to damage your carbon frame.
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    Some sort of pithy irrelevant one-liner should go here.

  3. #3
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    I dont - I just use very short hex wrenches. Might bite me later but its worked well so far...
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  4. #4
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    +1. Use the short end of a hex wrench between thumb and one finger and 5Nm will be quite uncomfortable. Kind of a natural torque wrench.

  5. #5
    Senior Member I <3 Robots's Avatar
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    Get a Ritchey Torq key.
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  6. #6
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    Yes i do, on my bike the seatpost clamp is built into the frame so if i over tighten it i technically cracked the frame.
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  7. #7
    Long-time Curmudgeon DrPete's Avatar
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    Torque wrench + Tacx carbon assembly paste = peace of mind.
    "Unless he was racing there was no way he could match my speed."

  8. #8
    Sua Ku rollin's Avatar
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    Yes. It's not something I do often so it's not a problem. The Ritchey key works well if you need 5 nm or less.

    I'm always spruced as to how tight the torque specs are. My "feel" for a seat collar would be around 5 nm, the specs are higher.

  9. #9
    Schleckaholic K&K_Dad's Avatar
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    I use a torque wrench now, now that I have a carbon bike as well. a good 50$ investment.
    "cause he's got teh jerseys, shaved legs, everything... he's road rider for sure " *** "You successfully riced out a bike." -JustinHorne

  10. #10
    Senior Member JonnyV's Avatar
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    Quote Originally Posted by DrPete View Post
    Torque wrench + Tacx carbon assembly paste = peace of mind.
    listen to the doc.
    Some people are just like Slinky's. Not really good for anything but they bring a smile to your face when you push them down the stairs.

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  11. #11
    Senior Member Smallguy's Avatar
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    I used assembly paste and a torque wrench too

    50.00 for a wrench several K for a new frame... easy math

  12. #12
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    Torque wrench + carbon assembly paste.

  13. #13
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    I have this one, it works pretty well. On sale now for $60!

    http://www.performancebike.com/bikes...8_20000_400155

  14. #14
    on a road near you... cmolway's Avatar
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    Quote Originally Posted by DrPete View Post
    Torque wrench + Tacx carbon assembly paste = peace of mind.
    +1

    I bought a torque wrench at harbor freight tools for $20 and it has definitely given me peace of mind.

  15. #15
    Senior Member topflightpro's Avatar
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    Yes. I basically torque everything and keep a Ritchey Torque key in my travel tool kit.

  16. #16
    Senior Member djpfine's Avatar
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    This thread now makes me want a torque wrench. Any other recommendations for good value pickups like the one on Performance? Is it better to go with the click or beam type?

  17. #17
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    Quote Originally Posted by djpfine View Post
    This thread now makes me want a torque wrench. Any other recommendations for good value pickups like the one on Performance? Is it better to go with the click or beam type?
    Is my Ritchie torque wrench broken? Seems like I can jack it REALLY tight without it 'slipping' to release pressure - I'm afraid to really turn it hard.

  18. #18
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    What if you have an aluminum frame with a carbon seat post? (i.e. caad9) The Cannondale manual says to use a torque wrench, but it would probably be relatively safe to adjust without?

  19. #19
    on a road near you... cmolway's Avatar
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    Quote Originally Posted by droped View Post
    What if you have an aluminum frame with a carbon seat post? (i.e. caad9) The Cannondale manual says to use a torque wrench, but it would probably be relatively safe to adjust without?
    If it's a carbon wrapped post (i.e.not carbon) you should be fine. That said, I managed to break my seatpost-collar bolt on my caad8 once when I torqued down too much on it.

  20. #20
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    Quote Originally Posted by kh6idf View Post
    I have this one, it works pretty well. On sale now for $60!

    http://www.performancebike.com/bikes...8_20000_400155
    Great deal. Comes with bits which would add $20 to getting the wrench and bits separately.

  21. #21
    Senior Member George's Avatar
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    George

  22. #22
    Senior Member mihlbach's Avatar
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    I'm not convinced a torque wrench is absolutely necessary if you use a bit of common sense. I just tighten it until I can't twist the saddle with one hand..I've never had a problem with the post slipping or getting crushed so I suppose I'm in the ballpark.

  23. #23
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    as i have learned, over-torquing a seat post clamp (aluminum or carbon) can cause tiny cracks to occur. tiny cracks become big cracks become faceplants.

    if you think about it: the saddle & post is like a lever and the seat post is the fulcrum. as you pedal on the bike, forces in all different directions are going through that point - where the post and seat tube meet....compounded by all the leverage your body weight puts on it.

    just get a $20 torque key that's calibrated for 5nm and never worry about it again!

  24. #24
    Schleckaholic K&K_Dad's Avatar
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    Quote Originally Posted by mihlbach View Post
    I just tighten it until I can't twist the saddle with one hand..
    Not all seat posts are round. If that were the case I wouldn't even need a clamp.
    "cause he's got teh jerseys, shaved legs, everything... he's road rider for sure " *** "You successfully riced out a bike." -JustinHorne

  25. #25
    Senior Member mihlbach's Avatar
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    Quote Originally Posted by K&K_Dad View Post
    Not all seat posts are round. If that were the case I wouldn't even need a clamp.
    In that case tighten it until it doesn't slip vertically. To get a seatpost not to slip, you really only need to barely cinch it down. If you are uncertain, use the short end of the wrench, or a very short wrench.

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