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  1. #1
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    50-12... to weak for the end of races???

    50-34 front. Just went to a 12-25 cassette for the holy grail... 16 tooth cog... I'll live in this thing for training around 21 mph...

    But I'm a little worried for racing for sprints with a 50-12 "big" gear... Anyone have experience racing with this weak gearing. You really can't get a weaker big gear than this. Thinking I should go to a 11-23 instead... Am I overthinking this?

  2. #2
    illusoryly superior Ygduf's Avatar
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    twitter.com/ygduf
    strava.com/athletes/ygduf

  3. #3
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    Quote Originally Posted by clones2 View Post
    50-34 front. Just went to a 12-25 cassette for the holy grail... 16 tooth cog... I'll live in this thing for training around 21 mph...

    But I'm a little worried for racing for sprints with a 50-12 "big" gear... Anyone have experience racing with this weak gearing. You really can't get a weaker big gear than this. Thinking I should go to a 11-23 instead... Am I overthinking this?
    Have you raced?

  4. #4
    Senior Member jsutkeepspining's Avatar
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    i won a p/1/2 field sprint with a 53/15. I also came in 3rd in another at 40 something odd mph with the same gear ratio. I doubt the 50/12 will hamper your ability to win a sprint.
    cat 1-o-meter: wtf am i doing??????
    Quote Originally Posted by Racer Ex View Post
    You're not dumb. You're just less smart.

  5. #5
    . botto's Avatar
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    drip.


    drip.






















































































    drip.

  6. #6
    Cat 5 Mod Jandro's Avatar
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    Quote Originally Posted by carpediemracing View Post
    Have you raced?
    Firstly and lastly, this. Have you? I suspect not since you're asking this question. Spoiler: yes you can.

    Quote Originally Posted by Ygduf
    This.

    and even

    Quote Originally Posted by botto
    drip
    drip
    drip
    This.

    But mainly the first one.
    Attack in the feeling because it says I'll win absolutely.

  7. #7
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    I forgot about this:


    39x11 top gear for much of the race, due to a shifting problem up front. Equal to about a 50x14. It wouldn't be my first choice in a sprint but it's doable. The guy that finished just behind me is a Cat 2. The guy that swerves at me allegedly podiumed at Nationals Masters 40+ Crit (that's what everyone said but I don't know who he is).

  8. #8
    **** that mattm's Avatar
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    Quote Originally Posted by jsutkeepspining View Post
    i won a p/1/2 field sprint with a 53/15. I also came in 3rd in another at 40 something odd mph with the same gear ratio. I doubt the 50/12 will hamper your ability to win a sprint.
    but you're an alien. it's different for the rest of us.
    pro-meter: lol

    blog

  9. #9
    Resident Alien Racer Ex's Avatar
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    I won a sprint on a 39/29.

  10. #10
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    In what, a mountain bike race?


    I finished with a 3/4 pack, almost taking a prime and making multiple fliers with my highest gear being at 50/14.

  11. #11
    Resident Alien Racer Ex's Avatar
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    Quote Originally Posted by Skyline516 View Post
    In what, a mountain bike race?
    Road. I never had to sprint in any of the MTB races I won.

  12. #12
    VeloSIRraptor
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    I win sprints in .... 53x14? I've taken a sprint before in 53x15, foot speed is the name of that game.
    There's a kid around here (U18 RR & TT champ) who has been winning pretty well most of the P/1/2 crits around here this year, and doing it on 52x14.

    I expect you'll be just fine.
    If you can't sprint with good foot speed, maybe less fine.
    Quote Originally Posted by shovelhd View Post
    If it comes down to a field sprint, you probably won't win, so don't let it.

  13. #13
    Senior Member aaronmcd's Avatar
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    Quote Originally Posted by Racer Ex View Post
    Road. I never had to sprint in any of the MTB races I won.
    Uphill?

  14. #14
    Senior Member aaronmcd's Avatar
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    I've been thinking and doing some calcs lately, and think it would be damn near impossible to output enough power without spinning really freaking fast. I've only done a few races, but I have started to leave it in maybe 52/14 or less on the flats (for sprinting). Think about it - with 50/12 you could hit almost 40mph at 120 rpms.

  15. #15
    Cat 5 Mod Jandro's Avatar
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    Quote Originally Posted by aaronmcd View Post
    I've been thinking and doing some calcs lately, and think it would be damn near impossible to output enough power without spinning really freaking fast. I've only done a few races, but I have started to leave it in maybe 52/14 or less on the flats. Think about it - with 50/12 you could hit almost 40mph at 120 rpms.
    Get out of here with your math and logic. He needs a 53x11, just like the pros, in order to win cat 5 (6?) sprints.
    Attack in the feeling because it says I'll win absolutely.

  16. #16
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    Quote Originally Posted by Racer Ex View Post
    Road. I never had to sprint in any of the MTB races I won.
    Were you climbing Alpe d'Huez?

  17. #17
    Senior Member topflightpro's Avatar
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    I've seen juniors win P/1/2 sprints with junior gearing.

  18. #18
    powered by Racer Ex gsteinb's Avatar
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    I've won sprints in 53x11

  19. #19
    Resident Alien Racer Ex's Avatar
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    Quote Originally Posted by Skyline516 View Post
    Were you climbing Alpe d'Huez?
    No. Alpe de Huez is a big ring finish. The 39/29 was a race that finished at the McDonald Observatory.

  20. #20
    Resident Alien Racer Ex's Avatar
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    Quote Originally Posted by gsteinb View Post
    I've won sprints in 53x11
    We won a tandem sprint in a 55/11.

  21. #21
    Resident Alien Racer Ex's Avatar
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    Quote Originally Posted by botto View Post
    drip.

    drip.

    drip.
    I didn't know she had the GI Joe kung fu grip.

    http://m.youtube.com/watch?v=k_LP4IU...%3Dk_LP4IU6XD4

  22. #22
    No matches Flatballer's Avatar
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    That's like 112 gear inches. People win sprints on the track all the time with ~90 inches. Spin to win. Unless you're sprinting downhill at 50 mph, you'll be fine.
    It's a bike race, not a tea party. - GirlAnachronism

  23. #23
    soon to be gsteinc... rkwaki's Avatar
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    Quote Originally Posted by gsteinb View Post
    I've won sprints in 53x11
    I've been beaten while using a 53x11 or 54x11.

    My young teammate handed my ass to me in a head to head sprint last year while using junior gearing. He also hit almost 1700 watts in that gear while doing it...
    "if you ride it the way it's meant to be ridden there's no way any wife is less of a ***** than a bicycle." - gstein

  24. #24
    pan y agua merlinextraligh's Avatar
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    50x12 at 120rpm = 39mph.

    There may be a few circumstances where you'd like to have the 50x11, but not having the 11 isnot likely to hold you back.

    If you don't need the 25 cog for a low, the better reason to prefer the 11-23 is it makes the 34 ring more useful.
    You could fall off a cliff and die.
    You could get lost and die.
    You could hit a tree and die.
    OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.

  25. #25
    Senior Member topflightpro's Avatar
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    Quote Originally Posted by Racer Ex View Post
    No. Alpe de Huez is a big ring finish. The 39/29 was a race that finished at the McDonald Observatory.
    That sounds about right. When I told a co-worker I was racing up there, his response was, "My truck had trouble getting up there."

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