Advertise on Bikeforums.net



User Tag List

Results 1 to 23 of 23
  1. #1
    crotchety young dude el twe's Avatar
    Join Date
    Jan 2005
    Location
    SF, CA
    My Bikes
    IRO Angus; Casati Gold Line; Redline 925; '72 Schwinn Olympic Paramount
    Posts
    4,818
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    OK, I finally found a bike to convert (an Astra "Tour de France" - $30). It has a 51/40 chainring set up, and I'm not changing them. My problem is that I bought a 16T cog and I think I want 15. But, the Bike Church only has 16 and 14T Dura Ace cogs. Should I shell out the extra $7 to get a 15T Surly cog? I really don't know, seeing as a 40x16 is 67.5 gear inches and 40x15 is 72. The gear ratio of a 42x16 is 2.6, while 40x16 is 2.5 and 40x15 is 2.7. I like the idea of a stronger gear, but money is kind of an issue, and I'm gonna head down town to do the swap pretty soon. Please help.
    Quote Originally Posted by CardiacKid View Post
    I explained that he could never pay me enough cash for the amount of work I had put into that bike and the only way to compensate me for it was to ride the hell out of it.
    IRO Angus Casati Gold Line

  2. #2
    Iguana Subsystem dolface's Avatar
    Join Date
    Nov 2004
    Location
    san francisco
    Posts
    4,016
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    ride the 16 for a while, if it's really too short a gear trade it with someone here.

  3. #3
    nothing: lasts forever ink1373's Avatar
    Join Date
    Aug 2004
    Location
    minneapolis
    Posts
    1,502
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    agree with dolface. no need to be urgent about this.

  4. #4
    crotchety young dude el twe's Avatar
    Join Date
    Jan 2005
    Location
    SF, CA
    My Bikes
    IRO Angus; Casati Gold Line; Redline 925; '72 Schwinn Olympic Paramount
    Posts
    4,818
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I just meant "urgent" because I'd be leaving to swap it soon. Looks like I'll stick with it, though.
    Quote Originally Posted by CardiacKid View Post
    I explained that he could never pay me enough cash for the amount of work I had put into that bike and the only way to compensate me for it was to ride the hell out of it.
    IRO Angus Casati Gold Line

  5. #5
    shoot up or shut up. isotopesope's Avatar
    Join Date
    Nov 2003
    Location
    colorado springs, co
    My Bikes
    yes please.
    Posts
    1,961
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    go with 40:14.

  6. #6
    hateful little monkey jim-bob's Avatar
    Join Date
    May 2003
    Location
    oakland, ca
    Posts
    5,272
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    67" is just fine.

  7. #7
    it looks like a knight inthe_fall's Avatar
    Join Date
    Jun 2005
    Posts
    10
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    ill swap you a dura ace 15T for the 14T. pm if you want it

  8. #8
    crotchety young dude el twe's Avatar
    Join Date
    Jan 2005
    Location
    SF, CA
    My Bikes
    IRO Angus; Casati Gold Line; Redline 925; '72 Schwinn Olympic Paramount
    Posts
    4,818
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by isotopesope
    go with 40:14.
    That's kinda big, don'tcha think?
    Quote Originally Posted by CardiacKid View Post
    I explained that he could never pay me enough cash for the amount of work I had put into that bike and the only way to compensate me for it was to ride the hell out of it.
    IRO Angus Casati Gold Line

  9. #9
    shoot up or shut up. isotopesope's Avatar
    Join Date
    Nov 2003
    Location
    colorado springs, co
    My Bikes
    yes please.
    Posts
    1,961
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by el twe
    That's kinda big, don'tcha think?
    no, but i commute with 48:16 and sometimes even commute with my track ratio of 48:14.

  10. #10
    crotchety young dude el twe's Avatar
    Join Date
    Jan 2005
    Location
    SF, CA
    My Bikes
    IRO Angus; Casati Gold Line; Redline 925; '72 Schwinn Olympic Paramount
    Posts
    4,818
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Naw, I like the 16T idea. Nevermind, I'm just getting anxious to have this all built up!
    Quote Originally Posted by CardiacKid View Post
    I explained that he could never pay me enough cash for the amount of work I had put into that bike and the only way to compensate me for it was to ride the hell out of it.
    IRO Angus Casati Gold Line

  11. #11
    shoot up or shut up. isotopesope's Avatar
    Join Date
    Nov 2003
    Location
    colorado springs, co
    My Bikes
    yes please.
    Posts
    1,961
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    give it a try; i personally love it. 48:16 is a perfect 3:1 ratio. 40:14 is just shy of that.

    edit: boy oh boy, you're quick! hahaha are you moving to colorado or just visiting? it's ugly and dumb here... i hate it a lot...

  12. #12
    hateful little monkey jim-bob's Avatar
    Join Date
    May 2003
    Location
    oakland, ca
    Posts
    5,272
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    When I lived in santa cruz, 42x17 got me up and down any hill I needed.

  13. #13
    Iguana Subsystem dolface's Avatar
    Join Date
    Nov 2004
    Location
    san francisco
    Posts
    4,016
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by isotopesope
    give it a try; i personally love it. 48:16 is a perfect 3:1 ratio. 40:14 is just shy of that.

    edit: boy oh boy, you're quick! hahaha are you moving to colorado or just visiting? it's ugly and dumb here... i hate it a lot...
    48x16 only gives you one skid patch though...

  14. #14
    Hello. crushkilldstroy's Avatar
    Join Date
    Jun 2005
    Location
    West Seattle
    Posts
    2,902
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by dolface
    48x16 only gives you one skid patch though...
    gives me two. but yeah, spin that tire.

  15. #15
    crotchety young dude el twe's Avatar
    Join Date
    Jan 2005
    Location
    SF, CA
    My Bikes
    IRO Angus; Casati Gold Line; Redline 925; '72 Schwinn Olympic Paramount
    Posts
    4,818
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by isotopesope
    give it a try; i personally love it. 48:16 is a perfect 3:1 ratio. 40:14 is just shy of that.

    edit: boy oh boy, you're quick! hahaha are you moving to colorado or just visiting? it's ugly and dumb here... i hate it a lot...
    No, just for vacation, but I'll be gone for 11 days, and I'll miss my fixie project . Oh well, I'll just settle for mountain bike rentals...I've got time to decide about the ratio.
    Quote Originally Posted by CardiacKid View Post
    I explained that he could never pay me enough cash for the amount of work I had put into that bike and the only way to compensate me for it was to ride the hell out of it.
    IRO Angus Casati Gold Line

  16. #16
    shoot up or shut up. isotopesope's Avatar
    Join Date
    Nov 2003
    Location
    colorado springs, co
    My Bikes
    yes please.
    Posts
    1,961
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by dolface
    48x16 only gives you one skid patch though...
    sometimes i skip a little, but i never skid. i've never even really try to since it seems more fun than effective for stopping and i am usually riding expensive tires that i don't want to ruin. plus, having fun is stupid.

  17. #17
    Member
    Join Date
    Jul 2005
    Posts
    34
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    for flat philly, whats a good gear setup? 48/18. unsure, no in to good of shape

  18. #18
    poser/hipster/whatever xthugmurderx's Avatar
    Join Date
    Apr 2005
    Location
    milwaukee, philly, and back, minneapolis in july
    My Bikes
    d/a allez -trek t1
    Posts
    994
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by newtosingle
    for flat philly, whats a good gear setup? 48/18. unsure, no in to good of shape
    i've been in philly for about 3 days now...i run a 40-14...i've seen dudes running 52-14...it's all about preference...i prefer control over top speed...your call.

    -jason
    Last edited by xthugmurderx; 07-29-05 at 08:07 AM. Reason: grammatical error

  19. #19
    cxmagazine dot com pitboss's Avatar
    Join Date
    Jun 2003
    Location
    WI
    My Bikes
    Titus road, Fort CX
    Posts
    8,270
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by isotopesope
    no, but i commute with 48:16 and sometimes even commute with my track ratio of 48:14.
    THREADJACK - Hey iso:
    is that a common ratio at 7-11 velo?
    Deathlap - cyclocross, training, beer,...escape hatch

  20. #20
    Senior Member
    Join Date
    Jun 2003
    Posts
    997
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    48/18 is roughly the same as my 43/16, which i (personally) find perfect for philly. If youre not in too gooda shape, you may find umbria and mannyunk a little challenging, but hey, thats what its all about.

  21. #21
    shoot up or shut up. isotopesope's Avatar
    Join Date
    Nov 2003
    Location
    colorado springs, co
    My Bikes
    yes please.
    Posts
    1,961
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by [165]
    THREADJACK - Hey iso:
    is that a common ratio at 7-11 velo?
    yeah, it is. 50:15 is also another common one, which is a perfect 90 inch gear. i love gear ratios that are even like that... people will gear up or down a bit from there, depending on specific events. a low 90ish gear inch is a good all around gear though. the track is 333 meters long with a 35 bank. dive bombing out of turns is so fun!

    sometimes when i want to spin my little banana's off, i'll run 48:16. you certainly couldn't race with that though.

    what are you running on the track? your track is long and low banked?

    didn't you ride the track here a bit when you lived here? you should still come out. my new house is a whopping two minute bike ride from there. poor me!

  22. #22
    Dismount Run Remount etc. 12XU's Avatar
    Join Date
    Apr 2005
    Location
    Some Latitude and Some Longitude
    My Bikes
    A couple customs and some beaters.
    Posts
    2,236
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by isotopesope
    no, but i commute with 48:16
    That's what I do now, but soon I'm going to switch to 49-18.

    <voice of reason>48-16 only gives one skid patch!</voice of reason>

  23. #23
    Slow in traffic Paul And Pista's Avatar
    Join Date
    Aug 2004
    Location
    South Philly
    My Bikes
    2002 Bianchi Pista, Cannondale R1000
    Posts
    319
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Continuing to threadjack this a bit, does anyone swtich out cogs on a somewhat frequent basis (maybe a couple times a month)? Just wondering if a cog is properly installed if you significantly increase your risk of stripping your hub by switching cogs.

    I run 46/16 on the road, but that really doesn't cut it for the track. I'd like to try 46/15 or 46/14 and I don't currently have the funds for either a new wheel or a new track-only bike. I know, I know... I should have just gotten a fixed/fixed wheel to begin with, but I decided to save myself the $50.

Posting Permissions

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