Results 1 to 19 of 19
  1. #1
    mtbr member
    Reputation:
    Join Date
    Oct 2008
    Posts
    385

    Dusk to dawn gear ratio for single speed

    Hey everyone, I am going to be riding the Dusk to Dawn race in December. It is my first time doing a 12 hour race. I have ridden the course several times with my 32 x 21 gear ratio. With that gearing everything is super easy to climb but I find myself spinning too much. I'm thinking of going to a 34 x 20 or even a higher gear. However I'm afraid that after six or seven hours, the high gear will really take its toll on my legs. Is it worth it to sacrifice lap speed for the ability to finish the race strong? Any tips?

  2. #2
    Ahhh the pain....
    Reputation: Raybum's Avatar
    Join Date
    Apr 2009
    Posts
    1,601
    I have ridden lots of >12 hour days on a SS and you definitely have to take distance into account when choosing a gear. However, for Pemberton, I would think something like 32x18 would be better. However, I'd get out there and try a few ratio's out (all depends on your strength and fitness) 32x21 seems WAY spinny for pemberton.
    Your limits are both physical and mental. Suffering will help you find and overcome both.
    http://onegear-ray.blogspot.com/

  3. #3
    mtbr member
    Reputation:
    Join Date
    Oct 2008
    Posts
    385
    I just threw a 34x20 on the bike. I'll give that a shot this week and see how it goes.

  4. #4
    livin' the dream......
    Reputation: tjkm's Avatar
    Join Date
    Jun 2007
    Posts
    1,525
    In my *limited* SS experience, I rode 32 x 18 on a borrowed Surly out there and felt it was good for me. Granted, I did not ride 12 hours. The 20 might be good for the all day session!!

  5. #5
    mtbr member
    Reputation: Casual Observer's Avatar
    Join Date
    Jan 2004
    Posts
    8,857

    Dusk to dawn gear ratio for single speed

    Quote Originally Posted by aevanlloyd View Post
    Hey everyone, I am going to be riding the Dusk to Dawn race in December. It is my first time doing a 12 hour race. I have ridden the course several times with my 32 x 21 gear ratio. With that gearing everything is super easy to climb but I find myself spinning too much. I'm thinking of going to a 34 x 20 or even a higher gear. However I'm afraid that after six or seven hours, the high gear will really take its toll on my legs. Is it worth it to sacrifice lap speed for the ability to finish the race strong? Any tips?
    I think I ran 32x18 when I did solo and that was fine. 32x21 way to small (or is it big) for Pemby, even solo.
    Nobody gives a s#$t you singlespeed.

  6. #6
    A plethora of pinatas
    Reputation: mcoplea's Avatar
    Join Date
    Nov 2004
    Posts
    1,179
    32x19 last year worked well for me.
    Marty

  7. #7
    mtbr member
    Reputation: PhxBenK's Avatar
    Join Date
    Jan 2011
    Posts
    213
    I rode 32x18 out there last week, in prep for D2D and it was still too spinny. I will probably run 34x18 or 32x17 for the race. There is so few hills you really shouldn't have to worry about a harder gear burning you out.

  8. #8
    mtbr member
    Reputation: stevland's Avatar
    Join Date
    Nov 2011
    Posts
    502
    Talked to a dude who solo'd last year and felt good on a 34x16. For us humans, 32x18 or 32x17 should be fine.

  9. #9
    mtbr member
    Reputation: Casual Observer's Avatar
    Join Date
    Jan 2004
    Posts
    8,857
    Quote Originally Posted by stevland View Post
    talked to a dude who solo'd last year and felt good on a 34x16. For us humans, 32x18 should be fine. Nobody in their right minds would ever run 32x17.
    fify
    Nobody gives a s#$t you singlespeed.

  10. #10
    Tucson, AZ
    Reputation: azepicriderandrunner's Avatar
    Join Date
    Feb 2008
    Posts
    2,971
    I am rolling a 32x21, 29er this year.

  11. #11
    Carnivore
    Reputation: gila monster's Avatar
    Join Date
    Feb 2011
    Posts
    339
    Chad, I assume you are soloing D2D? Doing McDowell on Sunday too?

  12. #12
    A plethora of pinatas
    Reputation: mcoplea's Avatar
    Join Date
    Nov 2004
    Posts
    1,179
    FYI, the Pemberton trail was re-routed after last year's D2D (no more sandy jeep road climb). DCB's website states that they will be using the same course as last year, but I do not see how this is possible with the trail being re-routed.

    See MMP's Updated Trail Map - http://www.maricopa.gov/parks/mcdowe...owell-8x11.pdf
    Marty

  13. #13
    mtbr member
    Reputation: SSdirt29's Avatar
    Join Date
    Dec 2011
    Posts
    392
    32x19 is magical. The stars align or something. for Pemby 32X18-19 for sure.

    You didn't mention if you're on a 29 or 26 inch bike. The same ratio is not equeal between them.

  14. #14
    mtbr member
    Reputation:
    Join Date
    Oct 2008
    Posts
    385
    Does anyone ride a
    26" anymore?

  15. #15
    mtbr member
    Reputation: SSdirt29's Avatar
    Join Date
    Dec 2011
    Posts
    392
    Quote Originally Posted by aevanlloyd View Post
    Does anyone ride a
    26" anymore?
    I ride one of each. The 26 has gears and full suspention. 29 is SS hardtail. It's fun to ride the same trail on a totally different bike.

    I f you ride a 26 in 32X18 it's similar to a 29 with a 32X19. For your 34 inch ring I'm not sure. The math makes my head explode.

    good luck

  16. #16
    DCB
    Reputation: DCB Extreme Adventures's Avatar
    Join Date
    Aug 2007
    Posts
    31
    Go big... as big as you can stand. I ride 32x19 for things like Breck Epic, BC Bike Race (read BIG elevation); this is a 44x15 course

    and note on course - we have to use the new trail; Park directive.

    See you soon!

    DCB

  17. #17
    Always a good day to ride
    Reputation: bik_ryder's Avatar
    Join Date
    May 2009
    Posts
    117
    Quote Originally Posted by DCB Extreme Adventures View Post
    Go big... as big as you can stand. I ride 32x19 for things like Breck Epic, BC Bike Race (read BIG elevation); this is a 44x15 course

    and note on course - we have to use the new trail; Park directive.

    See you soon!

    DCB
    44x15? You have to be a VERY STRONG MAN to run a gear like that!

    Happy to hear that the event will be using the new trail. Thanks for the update.

  18. #18
    mtbr member
    Reputation: Casual Observer's Avatar
    Join Date
    Jan 2004
    Posts
    8,857
    Quote Originally Posted by DCB Extreme Adventures View Post
    Go big... as big as you can stand. I ride 32x19 for things like Breck Epic, BC Bike Race (read BIG elevation); this is a 44x15 course

    and note on course - we have to use the new trail; Park directive.

    See you soon!

    DCB
    And you're adding the Scenic Trail this year, right? (Please, please, PLEASE add that trail.)
    Nobody gives a s#$t you singlespeed.

  19. #19
    mtbr member
    Reputation:
    Join Date
    Oct 2008
    Posts
    385
    44X15??? There is no way I could push that for 10 hours.

Similar Threads

  1. Dawn to Dusk, Who's in?
    By dcbAZ in forum Arizona
    Replies: 75
    Last Post: 12-03-2012, 03:15 PM
  2. Dawn To Dusk parking and set up
    By whee! in forum Arizona
    Replies: 14
    Last Post: 11-28-2012, 08:51 PM
  3. Dawn 'til Dusk?
    By Rovertd in forum New Mexico
    Replies: 5
    Last Post: 04-11-2012, 10:08 AM
  4. Single Speed Gear Ratio For Steep & Rocky
    By Wwaterman in forum Arizona
    Replies: 22
    Last Post: 04-05-2012, 09:50 PM
  5. Single Speed gear ratio recommendation?
    By tom traynor in forum 29er Bikes
    Replies: 31
    Last Post: 04-19-2011, 06:33 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •