Anyone run a 15t out back?- Mtbr.com
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  1. #1
    bt
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    Anyone run a 15t out back?

    I want to gear up a touch but what is the limit on how few teeth is A-ok?

    Yes, I am aware I could increase upfront.

  2. #2
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    I once had a 14 on the rear. It seemed that my chain popped off more frequently. Now I'm running a 16 and all is well.

    I would recommend larger cog and chainring (while maintaining gear inches/ratio). When more of the chain is making contact with the cog/chainring it is much less likely to pop off.

    I hope that helps....

  3. #3
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    I ran one for one ride/switched it to a 16t as 15t was too tall for the riding I was/am doing. But I was using a tensioner so that doesn't help does it.

  4. #4
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    I ran a 15t with a 36 for a dirt crit series a few years back. It never gave me any trouble, even though the course had a creek crossing that ttok some work to power out of.

    Ordering another one for this years series. But I've never had a chain come off in any gear combo. I can definitely make em pop, but I've never had a chain come off.

  5. #5
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    I ran 34/15 on my old Singular Gryphon, and it was fantastic - good for 30kmh @ 100rpm, and I could still get up most climbs (except the really steep ones...). Good compromise between comfortable road pace and being able to hit singletrack
    Attached Thumbnails Attached Thumbnails Anyone run a 15t out back?-gryphon1.jpg  


  6. #6
    bt
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    Quote Originally Posted by monolith View Post
    I ran 34/15 on my old Singular Gryphon, and it was fantastic - good for 30kmh @ 100rpm, and I could still get up most climbs (except the really steep ones...). Good compromise between comfortable road pace and being able to hit singletrack
    that's kinda what i'm doing.

    i'm running 34/16 and it's pretty close for what i'm riding.

    34/15 would help sometimes though when i run out of gear.

    gonna give it a whirl.

  7. #7
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    I've run 32/14 before on trails and never had issues.

  8. #8
    CB2
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    My first ss ride was with a 14t.

    I scavenged the cog from a cassette. I thought I had taken the 16t. I kept thinking "Wow this is harder than I expected!".

    It worked fine even with a tensioner.

  9. #9
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    I raced all cross season with a 15t with no problems!
    Raised in a Chicken-Coop by Chickens

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