Advertise on Bikeforums.net



User Tag List

Results 1 to 8 of 8
  1. #1
    Senior Member HBCruiser1's Avatar
    Join Date
    Dec 2013
    My Bikes
    3G Isla Vista Beach Cruiser
    Posts
    82
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)

    3 speed cruiser gearing

    Just picked up a used Nirve Night Owl 3-speed and I'm surprised at how spaced out the gearing is. I prefer to spin and it seems as though the low gear could be lower for better climbing and the high is way too high. Usable speeds on this type of a bike is 10-23-ish perhaps and the cadence in high gear is way too low.

    Am I right thinking if I change the front chain ring to smaller, and the rear to bigger, the result will be lower and closer overall ratios?

    Nirve Night Owl 3 Speed.jpg

  2. #2
    Senior Member plumberroy's Avatar
    Join Date
    May 2008
    Location
    ohio
    My Bikes
    Surly long haul trucker, Surly steamroller,Huffy Catalina, Univega Alpina 501
    Posts
    600
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Most 3 speed hubs come with an 18 tooth cog I all most always change it to a 20-22 tooth cog. On a cruiser type bike I would go 21 or 22 tooth . They are cheap and easy to change I would try that before I looked at the front chain ring.
    Roy
    Every breath I Have ever taken as a Free man was paid for with the blood of an American Soldier

  3. #3
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    9,414
    Mentioned
    72 Post(s)
    Tagged
    0 Thread(s)
    AW3 cogs range from 13t to 22 t..

    use your Math ? 22t hub 44t crank is a 1:2 gear x 26" wheel = a 52" gear wheel turns twice as many times as the cranks..

  4. #4
    Senior Member HBCruiser1's Avatar
    Join Date
    Dec 2013
    My Bikes
    3G Isla Vista Beach Cruiser
    Posts
    82
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Thanks plumberroy, I've changed them before so I'm thinking I'll try a 22 and see how that feels.

    fietbob, I wasn't sure how the math/formula worked with 3 speeds. One of the gears is 1/1, correct? What are the other 2, are they all a standard multiplier?

  5. #5
    Senior Member
    Join Date
    Dec 2008
    Location
    Oregon
    Posts
    286
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    First is usually 1 /.66, Second is 1/1, and third is 1.33/1
    I run my bikes so 3rd is normal cruise at about 65 gear inch. Tim

  6. #6
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    9,414
    Mentioned
    72 Post(s)
    Tagged
    0 Thread(s)
    ^^ 3rd and first are inverse fractions of each other ( so the .66 is a bit off..

    thats 2/3 not 3/4 so high would have to be 3/2 ; 1.5)


    AW3 is 3/4; 1 ; and 4/3 ; .75/1/1.33 ..
    Last edited by fietsbob; 07-28-15 at 01:02 PM.

  7. #7
    Senior Curmudgeon FarHorizon's Avatar
    Join Date
    Jan 2005
    Location
    Directly above the center of the earth
    My Bikes
    Varies by day
    Posts
    3,848
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    My experience is that ALL 3-speed internal hubs seem to be geared too widely. If I were in hilly or mountainous terrain, I could see the spacing that the hubs use, but I'm not. EVERYTHING around here is FLAT, and with a 3-speed, only the middle gear is usable - period.

    It would be nice if hub makers offered "close-range" 3-speed hubs that would make all three gears usable, but they don't. Of course, if I lived someplace like San Francisco, I'd want WIDER gear spacing on those hubs, so there's no pleasing everyone.

    My response is to avoid 3-speeds. Seven or eight is about right for me (internal or derailleur). But most of the time, I ride a single-speed coaster brake. It suits my needs fine.
    Nishiki road bike, Raleigh road bike, Electra Cruiser Lux 7d, Electra Townie 3i, Electra Townie 1, Whatever I find today!

  8. #8
    Senior Member
    Join Date
    Apr 2006
    Posts
    2,337
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Strmey used to sell both a close ratio and a fixed gear 3 speed hub. You still see them from time to time. The reason you don't see them is about 90% of the production was aimed at the AW hub. Roger

Posting Permissions

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