Advertise on Bikeforums.net



User Tag List

Page 1 of 2 12 LastLast
Results 1 to 25 of 34
  1. #1
    Addictive
    Join Date
    Apr 2009
    Location
    Florida
    My Bikes
    KHS Flite 100 (Track), Schwinn Varsity (Fixie), Motobecane Immortal Pro, Gary Fisher Big Sur, Katara Mixte (SS), Trek FX 7.3, Gravity 2 (SS), Panasonic Sport 1000 Mixte (SS), Columbia TwoSome (SS)
    Posts
    20
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Need advice on gearing

    Hello all! I am about to do a century for the Tour de Cure. When it was first mentioned, my father challenged me to do the century on my track bike. I am more than capable than doing so, so I considered it. He then, calls me up one day and tells me that he will join me and ride along, on his track bike as well. My father and I have been avid cyclists for a good 25 years.

    Moving on, now that he is joining me for the ride, I came across on old tandem and it really got my gears turning in my head. I acquired the tandem, which originally had a 3 speed coaster brake hub, and I am now in the process of rebuilding it; to make sure it is up to par for such ride.

    I ditched the original wheels (26"), in favor for 700c. No worries, the conversion fit w/ plenty of room and I even have caliper brakes that complete the conversion. I'll post pics as soon as I can get some. The gearing on this bike is as follows; the synch chain has 39t chainrings and the drive chain has a 50t chainring and I will be using a single speed freewheel.

    On to my question... Both my father and I run anywhere from a 46t to a 53t chainring on our fixies along w/ a 14t to 16t cog. Those are great gears for really cruising along. I am wondering about the gear inches, if our synch gears are 39t and the drive chainring is 50t w/ a 16t freewheel, would that be the same as pedaling a solo bike w/ a 39x16 or more like pedaling a solo bike with 50x16?

    i hope this isn't too confusing and don't think I missed anything. And I really appreciate any input, advice and help in advance. The ride we are doing is in Florida, so hills are not a concern. And, I want to make sure I get the gearing right as we don't want to be spinning out nor pushing so hard and not getting anywhere. I estimate to run anywhere from 18-23mph, preferably between 80-90rpms.

  2. #2
    Oldie, just not here! Onegun's Avatar
    Join Date
    Apr 2008
    Location
    Shady Hills, Fl.
    My Bikes
    2005 Trek T2000 tandem, 2003 Burly Tosa Tandem, 6 singles including 2 fixies
    Posts
    980
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    50x16
    BICYCLE - [bahy-si-kuhl] - Noun :> A medical device used to correct the common geriatric condition of OFS, (Old, Fat & Slow), in a manner that does not induce brain-decaying boredom like walking or running.

    2005 Trek T2000 Tandem, 2003 Burley Tosa Tandem, Pacific Dualie beater tandem, and 6 singles including 2 fixies.

    TampaBayCycling.com - A LOCAL Cycling Forum
    The Florida Panthers Tandem Club

  3. #3
    Tandem Vincitur Ritterview's Avatar
    Join Date
    Sep 2005
    Location
    Northern California
    My Bikes
    BMC Pro Machine SLC01, Specialized Globe, Burley Rock 'N Roll tandem, Calfee Dragonfly tandem.
    Posts
    3,214
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    If you had access to a tandem with normal gearing, couldn't you and Dad go for a short ride, and note which gear ratio was the sweetest?

  4. #4
    Addictive
    Join Date
    Apr 2009
    Location
    Florida
    My Bikes
    KHS Flite 100 (Track), Schwinn Varsity (Fixie), Motobecane Immortal Pro, Gary Fisher Big Sur, Katara Mixte (SS), Trek FX 7.3, Gravity 2 (SS), Panasonic Sport 1000 Mixte (SS), Columbia TwoSome (SS)
    Posts
    20
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Onegun View Post
    50x16
    Awesome... I think that was the answer that I was looking for. Thank you!

    BTW... I see you are in Clearwater, I am right around the corner form you, in Largo.

  5. #5
    Addictive
    Join Date
    Apr 2009
    Location
    Florida
    My Bikes
    KHS Flite 100 (Track), Schwinn Varsity (Fixie), Motobecane Immortal Pro, Gary Fisher Big Sur, Katara Mixte (SS), Trek FX 7.3, Gravity 2 (SS), Panasonic Sport 1000 Mixte (SS), Columbia TwoSome (SS)
    Posts
    20
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Ritterview View Post
    If you had access to a tandem with normal gearing, couldn't you and Dad go for a short ride, and note which gear ratio was the sweetest?
    Logically, yes. I guess I wasn't quite full of info on the initial post. My father lives out of state, the ride is on April Fools Day and he will be driving down the evening before, to do the ride w/ me. So, yes, if he were here, I'm sure we could compare gears.

  6. #6
    Gear Combo Guru Chris_W's Avatar
    Join Date
    May 2007
    Location
    Switzerland
    My Bikes
    Spec' Tarmac (road), Spec' Secteur Disc (commuter & tourer), Salsa Mamasita (MTB), CoMo Speedster (tandem), Surly Big Dummy (cargo), Airnimal (folder), a train pass, and NO car :)
    Posts
    2,046
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Do you both have some experience riding tandems? I wouldn't do my first tandem ride in a large group, I'd instead want to figure things out on at least one shorter, more relaxed ride with more space first.

  7. #7
    Senior Member
    Join Date
    Oct 2009
    Posts
    904
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The timing gear sizes do not come into it. The gearing is what is on the stokers chainring and the rear wheel. If the ride is flat and the tandem has comparable quality wheels and tyres to your single fixies it should be a bit faster so you may be able to push a slightly larger gear than your singles.

  8. #8
    Oldie, just not here! Onegun's Avatar
    Join Date
    Apr 2008
    Location
    Shady Hills, Fl.
    My Bikes
    2005 Trek T2000 tandem, 2003 Burly Tosa Tandem, 6 singles including 2 fixies
    Posts
    980
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Gauge View Post
    BTW... I see you are in Clearwater, I am right around the corner form you, in Largo.
    Cool. If you have any trouble with the conversion, or if you want to try a tandem ride, get in touch with me. I'll PM you my number and email.
    BICYCLE - [bahy-si-kuhl] - Noun :> A medical device used to correct the common geriatric condition of OFS, (Old, Fat & Slow), in a manner that does not induce brain-decaying boredom like walking or running.

    2005 Trek T2000 Tandem, 2003 Burley Tosa Tandem, Pacific Dualie beater tandem, and 6 singles including 2 fixies.

    TampaBayCycling.com - A LOCAL Cycling Forum
    The Florida Panthers Tandem Club

  9. #9
    PMK
    PMK is offline
    Senior Member PMK's Avatar
    Join Date
    May 2008
    Location
    Royal Palm Beach, Florida
    My Bikes
    2006 Co-Motion Roadster (Flat Bars, Discs, Carbon Fork), Some 1/2 bikes and a couple of KTM's
    Posts
    1,083
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The gearing numbers are probably close @ 50:16. I'm too lazy to do the math. Maybe a touch tall for the speed window / rpm range.

    We too live down here, for us, that rpm and speed window

    20 mph @ 100 rpm with 44:17 (easy to remember, 5th gear > 20 mph = 100 rpm)

    BTW, that's with a 28c tire.

    You may want to consider giving yourself a bit more pull off the line, if your dad is light it may not be a concern but a heavier stoker and tall gearing gets ugly starting out...

    PK
    2006 Co-Motion Roadster, flat bars, discs and carbon fibre fork, size 22 / 19
    2006 Ventana ECDM full suspension mountain tandem
    Some single bikes and a couple of KTM's
    And most important, someone special that enjoys them with me (except the KTM's)

  10. #10
    Senior Member zonatandem's Avatar
    Join Date
    Dec 2003
    Location
    Tucson, AZ
    My Bikes
    ariZona carbon fiber tandem & single
    Posts
    9,968
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Suggest dad shows up a couple days early so the two of you can learn to ride TWOgether.
    Not at all like ride your singles!
    Have dad bring saddle off his single and put it on the tandem . . .
    A longer ride on a lousy saddle is never any fun.
    Enjoy the ride!

  11. #11
    Addictive
    Join Date
    Apr 2009
    Location
    Florida
    My Bikes
    KHS Flite 100 (Track), Schwinn Varsity (Fixie), Motobecane Immortal Pro, Gary Fisher Big Sur, Katara Mixte (SS), Trek FX 7.3, Gravity 2 (SS), Panasonic Sport 1000 Mixte (SS), Columbia TwoSome (SS)
    Posts
    20
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks for the input all. Yes, we do have experience on a tandem, he more than I. He will be bringing his own saddle actually. We did consider bumping the drive gear up to either 52t or 53t, to spin the 16t freewheel. But, I may stick w/ what it has for now, just to see how it goes. The ride we are prepping for is very flat, minus a few bridges here and there. My everyday fixie runs 53x15 (sometimes 13 or 14), my city cruiser runs 48x16 and my local zipper run 42x16.

  12. #12
    Senior Member
    Join Date
    Oct 2009
    Posts
    904
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    53x15 is quite a big gear for your fixie. That is what I use for flat time trials.

  13. #13
    Addictive
    Join Date
    Apr 2009
    Location
    Florida
    My Bikes
    KHS Flite 100 (Track), Schwinn Varsity (Fixie), Motobecane Immortal Pro, Gary Fisher Big Sur, Katara Mixte (SS), Trek FX 7.3, Gravity 2 (SS), Panasonic Sport 1000 Mixte (SS), Columbia TwoSome (SS)
    Posts
    20
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Yeah... it took me a while to get up to that gear but as I progressed, I kept spinning out and topping out at my speed. I enjoy zipping around on that gearing. I only have 3 bridges to worry about. But, I can climb them while seated. I use my 13t cog on my trainer.

    You guys ready for a really good laugh? The tandem is an old Columbia TwoSome. It was a real piece of work when I initially acquired it. Here's some a before and mid-assemble.

    IMG00061-20120205-1506.jpg
    Last edited by Gauge; 02-27-12 at 07:20 PM. Reason: learning how to add pics

  14. #14
    Addictive
    Join Date
    Apr 2009
    Location
    Florida
    My Bikes
    KHS Flite 100 (Track), Schwinn Varsity (Fixie), Motobecane Immortal Pro, Gary Fisher Big Sur, Katara Mixte (SS), Trek FX 7.3, Gravity 2 (SS), Panasonic Sport 1000 Mixte (SS), Columbia TwoSome (SS)
    Posts
    20
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Here's it's current state.IMG00115-20120225-1548.jpg

  15. #15
    Oldie, just not here! Onegun's Avatar
    Join Date
    Apr 2008
    Location
    Shady Hills, Fl.
    My Bikes
    2005 Trek T2000 tandem, 2003 Burly Tosa Tandem, 6 singles including 2 fixies
    Posts
    980
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Guage, I went to see your bike today. (It wasn't hard to figure out ... there's only one bike shop in our county, possibly in the entire US, with a fire hydrant in their showroom!). Bullet was telling me about the problems you're encountering, and I have some possible solutions, up to and including maybe letting you rebuild to single speed and use a Pacific Dualie I picked up. That way a stoker stem is not an issue, and neither is clipless pedals.

    I'll send you PM with my contact info.
    BICYCLE - [bahy-si-kuhl] - Noun :> A medical device used to correct the common geriatric condition of OFS, (Old, Fat & Slow), in a manner that does not induce brain-decaying boredom like walking or running.

    2005 Trek T2000 Tandem, 2003 Burley Tosa Tandem, Pacific Dualie beater tandem, and 6 singles including 2 fixies.

    TampaBayCycling.com - A LOCAL Cycling Forum
    The Florida Panthers Tandem Club

  16. #16
    Addictive
    Join Date
    Apr 2009
    Location
    Florida
    My Bikes
    KHS Flite 100 (Track), Schwinn Varsity (Fixie), Motobecane Immortal Pro, Gary Fisher Big Sur, Katara Mixte (SS), Trek FX 7.3, Gravity 2 (SS), Panasonic Sport 1000 Mixte (SS), Columbia TwoSome (SS)
    Posts
    20
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Haha... hey, I didn't realize it was you. I believe we have met and chat in passings at Bullet's. I tried relying to your PM; apparently I have to ***** my postings in order to get up to 50 posts before I can PM :?

  17. #17
    Senior Member
    Join Date
    Nov 2008
    Location
    Seattle,WA or Macau
    My Bikes
    Vary
    Posts
    71
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Perhaps you guys should communicate in one's visitor message page =].

  18. #18
    Addictive
    Join Date
    Apr 2009
    Location
    Florida
    My Bikes
    KHS Flite 100 (Track), Schwinn Varsity (Fixie), Motobecane Immortal Pro, Gary Fisher Big Sur, Katara Mixte (SS), Trek FX 7.3, Gravity 2 (SS), Panasonic Sport 1000 Mixte (SS), Columbia TwoSome (SS)
    Posts
    20
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    open to all posts and comments........ i dont discriminate.

  19. #19
    Oldie, just not here! Onegun's Avatar
    Join Date
    Apr 2008
    Location
    Shady Hills, Fl.
    My Bikes
    2005 Trek T2000 tandem, 2003 Burly Tosa Tandem, 6 singles including 2 fixies
    Posts
    980
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Gauge View Post
    open to all posts and comments........ i dont discriminate.
    He was just trying to suggest an alternate way to communicate. You are correct in that you have to have 50 posts to use the PM system. That's why you see so many posts of "cool!", "nice!" and "+1" from people who don't yet have 50! Not saying you should do that, of course.

    But that's also why I sent you alternate contact info.

    Bill
    BICYCLE - [bahy-si-kuhl] - Noun :> A medical device used to correct the common geriatric condition of OFS, (Old, Fat & Slow), in a manner that does not induce brain-decaying boredom like walking or running.

    2005 Trek T2000 Tandem, 2003 Burley Tosa Tandem, Pacific Dualie beater tandem, and 6 singles including 2 fixies.

    TampaBayCycling.com - A LOCAL Cycling Forum
    The Florida Panthers Tandem Club

  20. #20
    Addictive
    Join Date
    Apr 2009
    Location
    Florida
    My Bikes
    KHS Flite 100 (Track), Schwinn Varsity (Fixie), Motobecane Immortal Pro, Gary Fisher Big Sur, Katara Mixte (SS), Trek FX 7.3, Gravity 2 (SS), Panasonic Sport 1000 Mixte (SS), Columbia TwoSome (SS)
    Posts
    20
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    As of today...

    TwoSome.jpg

  21. #21
    Tandem Vincitur Ritterview's Avatar
    Join Date
    Sep 2005
    Location
    Northern California
    My Bikes
    BMC Pro Machine SLC01, Specialized Globe, Burley Rock 'N Roll tandem, Calfee Dragonfly tandem.
    Posts
    3,214
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Gauge View Post
    Hello all! I am about to do a century for the Tour de Cure. When it was first mentioned, my father challenged me to do the century on my track bike.
    It is not mandatory or anything, but a YouTube video of you and pops doing an awesome tandem trackstand would be cool.

  22. #22
    Addictive
    Join Date
    Apr 2009
    Location
    Florida
    My Bikes
    KHS Flite 100 (Track), Schwinn Varsity (Fixie), Motobecane Immortal Pro, Gary Fisher Big Sur, Katara Mixte (SS), Trek FX 7.3, Gravity 2 (SS), Panasonic Sport 1000 Mixte (SS), Columbia TwoSome (SS)
    Posts
    20
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

  23. #23
    Oldie, just not here! Onegun's Avatar
    Join Date
    Apr 2008
    Location
    Shady Hills, Fl.
    My Bikes
    2005 Trek T2000 tandem, 2003 Burly Tosa Tandem, 6 singles including 2 fixies
    Posts
    980
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Looks great, Guage! How are you gonna solve the 1/2" crank and 9/16" clipless pedal issue?
    BICYCLE - [bahy-si-kuhl] - Noun :> A medical device used to correct the common geriatric condition of OFS, (Old, Fat & Slow), in a manner that does not induce brain-decaying boredom like walking or running.

    2005 Trek T2000 Tandem, 2003 Burley Tosa Tandem, Pacific Dualie beater tandem, and 6 singles including 2 fixies.

    TampaBayCycling.com - A LOCAL Cycling Forum
    The Florida Panthers Tandem Club

  24. #24
    pan y agua merlinextraligh's Avatar
    Join Date
    Aug 2005
    Location
    Jacksonville
    My Bikes
    Wilier Zero 7; Merlin Extralight; Co-Motion Robusta; Schwinn Paramount; Motobecane Phantom Cross; Cervelo P2; Motebecane Ti Fly 29er
    Posts
    27,236
    Mentioned
    8 Post(s)
    Tagged
    0 Thread(s)
    As for gearing, this calcualtor allows you to see graphicly how different combinations compare.

    http://www.gear-calculator.com/#
    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
    Addictive
    Join Date
    Apr 2009
    Location
    Florida
    My Bikes
    KHS Flite 100 (Track), Schwinn Varsity (Fixie), Motobecane Immortal Pro, Gary Fisher Big Sur, Katara Mixte (SS), Trek FX 7.3, Gravity 2 (SS), Panasonic Sport 1000 Mixte (SS), Columbia TwoSome (SS)
    Posts
    20
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Ritterview View Post
    It is not mandatory or anything, but a YouTube video of you and pops doing an awesome tandem trackstand would be cool.
    I actually was sitting at a stop light yesterday, still clipped in, and holding it at a "standing" trackstand.

Page 1 of 2 12 LastLast

Posting Permissions

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