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  1. #1
    29er
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    street gearing ?

    looking to build a 29er SS street bike
    what gearing do you guys use?
    I'm thinking 32x13 might work...

  2. #2
    mtbr member
    Reputation: mack_turtle's Avatar
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    cassette or freewheel? a freewheel will only allow you to go as small as 16t. 13-14t freewheels only fit on hubs with metric threads, which are usually bmx-specific hubs.

    are you planning to ride long distances or just run errands? hilly or flat?

    keep in mind that, that smaller your cogs and chainrings, the faster they wear out. so it might be smart to use a 16t+ cog and an appropriately larger chainring instead of just using a tiny cog with your standard 32t chainring.

  3. #3
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    32x16 gets me around fast enough. It's not like I need to be speed racer. If I need to get somewhere fast I take my car.

  4. #4
    Just Ride
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    I like gears on the road. That way I can just go for a causal ride at a casual pace. Or haul ass should the mood so warrant!
    SS ==> Nut up or Shut up!

  5. #5
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    My pavement cruiser 26" SS is 40x16. It's perfect for me because I can cruise at decent speeds and climb easily too. I started out at 44x18 on it two years ago which seemed kind of hard but I don't know if it was 'cause I was out of shape. I went to 40x18 because I wanted to replace the worn out one piece triple chain ring. This might sound ridiculous but the main reason I went from 40x18 to 40x16 was so that I wouldn't need a chain tensioner or half link. Oh and the 16t cog came from my Monocog to be replaced by a 20t for trails.

  6. #6
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    My 26" pavement cruiser is 42x16, for about 69 gearinches which still lets me climb some decent hills. 32x13 on a 29er is 71 gearinches, so that's pretty close.

  7. #7
    reading comprehension wat
    Reputation: dv8xin's Avatar
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    32x14 is a good town gear. 15 MPH avg cruiser is easy on level paved stuff, can put the hammer down and speed at around 22 MPH on flats with good effort, maybe 28 MPH spinning like crazy. Can still climb some 10% grades in the gear. Planning on running slicks? Maybe cheap tires like this 700x35 wire bead tire?
    I like to jump to conclusions, oversimplify, gossip, and participate in popularity polls.

  8. #8
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    My Monocog 29er is set up as my commuter. Geared at 40x18 running 35c CX tires.
    Last edited by driver bob; 03-29-2013 at 04:25 PM.

  9. #9
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    My Monocog 29er in CX mode runs a 36:18 gear. I've done 2hr road rides with that setup on mountain bike tires and averaged 15.5mph. A bit spinny on the flats, but climbing hills is not a problem. Lower rolling resistance tires could probably go to 38 or 40 for the chain ring. (I'm not that fit and there are a good number of hills around me)

  10. #10
    I have Flat Pedal shame.
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    I'm running 44:19 on my commuter. Avg about 17 mph.
    I don't care what you ride or how you ride just as long as you ride.

  11. #11
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    My Inbred 29er is set at 40x15.

    No idea of my average speed but the ratio feels perfect: no need to go faster and okay for most climbs here in Paris (Mary bars have a reasonable 645mm width). And still able to control the cranks when going down fast (it's a fixed gear with straps).
    FG | SS | FS | CX

  12. #12
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    I was running 32x14 for around town and for my short 7 mile round trip to the gym. Some climbing involved but nothing too crazy. Then I started to develop knee pain SOB, so I lowered the gearing back up.

    I learned the hard way and to think I was going to try out 32x12.
    Pedaling Gorilla

  13. #13
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    I felt like I stumbled upon the magic ratio when I moved to 44x19 with 26x20 Schwalbe Kojaks on my Chris Kelly Deluxe. That's almost exactly 60 Gear Inches (same as dv8xin's 32x14 on a 700 wheel posted above). I can push up really steep hills for short distances and grind up longer hills without too much trouble. And I can cruise at around 15-17 mph without much trouble (wind dependent).

    There are times, on fun flat windy bits, where I wish I had more gear and could really wind it up, but for the most part, I think it is a perfect city/commute/gravel grinder/light trail gear.

  14. #14
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    SSROAD
    44x19.32mm tires. Chillin'
    44x17.32mm tires. Truckin'
    44x17.23mm tires. DESTROYING EVERYTHING.

    ehh or 33x19-20 because im lazy and just want to jump on the mtb and spin around and pretend I have a giant bmx bike hopping curbs and what not.

  15. #15
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    Indeed, a ratio of +/-2.6 is quite good for a 29er commuter in a flat city:

    44/17 = 42/16 = 40/15 in approximate terms.

    I understand that to keep more or less the same ratio, it works as follows: +1 tooth behind = +2 teeth front.

  16. #16
    psycho cyclo addict
    Reputation: edubfromktown's Avatar
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    I ride my rigid 29er SS on trails and the street. Running 34x15 at present (66 gear inches) and looking to go 34x14 (70.75 gear inches) which will probably be close the max I can tolerate on the more mundane/flowy trails around where I live. If I need to go fast, I ride geared 29er that day.

  17. #17
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    I'd look at going to around 64 gear inches. On my 26'er that is around32*13 or 40*16.

    I used to run my paddy wagon at 42*16 on my old paddy wagon road only bike which was 69 gear inches.

  18. #18
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    my 29er ss came with 33x18. 1.83 ratio 53.16 gear inch. it was a blast in the trails, on the road however too much rpm.
    ordered a 16 tooth, that would put me at 2.06 ratio and 59.81 gear inch. ill let u guys know how it turns out.

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