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  1. #1
    Senior Member Smallguy's Avatar
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    road bike shifts better under load than mtb bike

    hi I have a fairly nice mtb bike trek fuel ex 9 form 07 and I've noticed that my Giant OCR 1 shift allot better under load

    I'm always semi concerned about shifting my mtb on a climb but my road bike shift easily on climbs where my mtb will clunk and I've busted a few chains this way as well

    anyone else notice this and why is it the case ?

  2. #2
    Hey guyz? Guyz? Wait up!! Siu Blue Wind's Avatar
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    Are you shifting while pedaling hard uphill?
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  3. #3
    ed
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    Probably because the gear ratio's are closer together on a road cassette.

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    Hey guyz? Guyz? Wait up!! Siu Blue Wind's Avatar
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    I'm thinking the chains are breaking because of heavy load shifting. Surprised chainsuck hasn't occurred.
    Quote Originally Posted by Buddha
    We are what we think. All that we are arises with our thoughts. With our thoughts, we make the world.
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    Please dont outsmart the censor. That is a very expensive censor and every time one of you guys outsmart it it makes someone at the home office feel bad. We dont wanna do that. So dont cleverly disguise bad words.

  5. #5
    ed
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    YOu're not supposed to shift on a climb under load...you need to surge forward, soft pedal as you shift, put the power back down when the chain drops on the cog.

    Shifting under a load is a bad idea on any derailleur'd bike.

  6. #6
    Bike Junkie roccobike's Avatar
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    Keep shifting that OCR1 under hard loads and watch what happens. 105 STI shifters are really nice, but you'll damage your chain and cassette if you continue to shift under hard load.
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    Official Website Waterboy born2bahick's Avatar
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    I shift under load constantly, Mine works fine XTR RR, and Low normal, Sram XO, And Deore lx setups.
    All shift fine under out of the saddle attacks if need be? I think the OP should check indexing, Cables, Housings and shifters.

  8. #8
    Hey guyz? Guyz? Wait up!! Siu Blue Wind's Avatar
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    Quote Originally Posted by chelboed View Post
    YOu're not supposed to shift on a climb under load...you need to surge forward, soft pedal as you shift, put the power back down when the chain drops on the cog.

    Shifting under a load is a bad idea on any derailleur'd bike.
    Yep. ^^^ That was my point.
    Quote Originally Posted by Buddha
    We are what we think. All that we are arises with our thoughts. With our thoughts, we make the world.
    Quote Originally Posted by making View Post
    Please dont outsmart the censor. That is a very expensive censor and every time one of you guys outsmart it it makes someone at the home office feel bad. We dont wanna do that. So dont cleverly disguise bad words.

  9. #9
    Official Website Waterboy born2bahick's Avatar
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    Quote Originally Posted by chelboed View Post
    YOu're not supposed to shift on a climb under load...you need to surge forward, soft pedal as you shift, put the power back down when the chain drops on the cog.

    Shifting under a load is a bad idea on any derailleur'd bike.
    Why? If you need to shift You should be able to? shouldn't you? Cmon Ed Big Blanket
    Ohhhhhh And Quit pushing my wife down!
    Last edited by born2bahick; 08-16-09 at 07:20 PM.

  10. #10
    Senior Member victim's Avatar
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    My OCR 1 with 105 gruppo shifts better than my x9 bike and my XT/XTR bike. Never really thought about it until now, thanks...

  11. #11
    Hey guyz? Guyz? Wait up!! Siu Blue Wind's Avatar
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    Quote Originally Posted by born2bahick View Post
    Why? If you need to shift You should be able to? shouldn't you? Cmon Ed Big Blanket
    Ohhhhhh And Quit pushing my wife down!

    When you are shifting under load and the chain hasn't had the chance to seat then you are forcing the chainring to move when at that teeny moment there is no chain on it. The chainring will purge forward, the chain won't catch and you get chainsuck because it jumps and gets caught in between the frame and the chainring or in the chainring itself.
    Quote Originally Posted by Buddha
    We are what we think. All that we are arises with our thoughts. With our thoughts, we make the world.
    Quote Originally Posted by making View Post
    Please dont outsmart the censor. That is a very expensive censor and every time one of you guys outsmart it it makes someone at the home office feel bad. We dont wanna do that. So dont cleverly disguise bad words.

  12. #12
    Official Website Waterboy born2bahick's Avatar
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    I haven't had any problem with experiences like that. Maybe the bike gods are shining on me.

  13. #13
    Senior Member Smallguy's Avatar
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    it's not something I try to do and even if i do I try to be genital and ease up on the pedals but sometimes after allot of climbing my legs are burning and I need a gear I can spin easier

    I just notice my road bike handles this much better than my mtb bike even though my mtb bike has a pretty top shelf drive train and 105 is "middle of the road"

  14. #14
    Official Website Waterboy born2bahick's Avatar
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    Ed's a good wrench fo sho, He's putting more power to the pedals evidently, Siu too, for that matter. I must be a wuss.He He

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