Advertise on Bikeforums.net



User Tag List

Page 1 of 2 12 LastLast
Results 1 to 25 of 35
  1. #1
    Senior Member
    Join Date
    Jul 2007
    Posts
    182
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Need help- Anyone run a 50t ring up front?

    ...if so, what size do you roll on the rear- 18? 16? still learning the ropes, and my new rig comes built with a 50t sugino chainring, with no rear cog. i live in Hawaii, so steep SF-esque hills are nonexistent. i plan to do a lot of distance rides (well, i AM on an island, so its not the type of distance im sure most of you are used to) . i need so advice on whether to keep the 50t, and if so, what size cog to run. if i should indeed switch my front ring out, what size would you recommend for flatland rides? thanks guys.

  2. #2
    LF for the accentdeprived
    Join Date
    May 2005
    Location
    Budapest, Hungary
    Posts
    3,550
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    50/18 should be a good gear to try first and then go from there.
    Quote Originally Posted by dutret
    Do you deny that you are clueless or do you just think that "moron" didn't need to be tacked on there?
    Bike on flickr and on FGG

  3. #3
    Senior Member TimArchy's Avatar
    Join Date
    Jun 2003
    Location
    Atlanta
    My Bikes
    Zeus (Razesa) tarck, Giant TCR road, Eddy Merckx road, Fuji Touring Series IV for everything else
    Posts
    1,155
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I used to go between 50x18 and 50x16. The 18 for general riding and to work on spin. The 16 for racing where its fairly flat. I like to use 17 for racing in not so flat areas.
    I have recently moved down to a 49t ring so it sort of throws everything out of whack. Although 49t may be a good idea to start with b/c you get more mutually prime gear combinations (more skid patches).
    Quote Originally Posted by Josh Frank
    I will derive power from their cries of despair. My crank a speedy dervish, spinning and spinning through the darkest night that anyone with the audacity to try and suck my wheel will ever see...

  4. #4
    re:member
    Join Date
    Jan 2005
    Location
    Cracow, Poland
    My Bikes
    unknown make TT bike, fixed; Romet Sport, gone; titanium Pinarello gone;Colnago with Campy C-Record/Super Record,on it's way; Funny Gianni Motta; Buehler track, Polrad track chrome; titanium MTB on 28'', fixed; Tri Wheeler, fixed
    Posts
    874
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Transfixed06 View Post
    ...if so, what size do you roll on the rear- 18? 16? still learning the ropes, and my new rig comes built with a 50t sugino chainring, with no rear cog. i live in Hawaii, so steep SF-esque hills are nonexistent. i plan to do a lot of distance rides (well, i AM on an island, so its not the type of distance im sure most of you are used to) . i need so advice on whether to keep the 50t, and if so, what size cog to run. if i should indeed switch my front ring out, what size would you recommend for flatland rides? thanks guys.
    I have started with 50/18 for a hilly commute, city/winter bike is 48/18 as I need more acceleration in the city.

  5. #5
    Senior Member Bacchusbill's Avatar
    Join Date
    Jun 2006
    Location
    NOLA
    My Bikes
    '00 Bruce Gordon Rock and Road Tour, '01 Breezer Venturi, '97 Specialized Stumpjumper M2 Pro, '87 GT Timberland, '82 Benotto single speed, '48 Schwinn Phantom, '71 Schwinn Pea Picker, '07 BFSSFGIRO
    Posts
    173
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I run a 53/17 down here where there are no hills. Kinda slow to get started, but once you get up to speed, its easy to stay on top of. Tough to skid, tho'.
    "Get a bicycle. You will not regret it if you live." ~Mark Twain

  6. #6
    skinning up
    Join Date
    Jul 2006
    Location
    cleveland
    Posts
    1,243
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    52/17 is pretty nice for now...

  7. #7
    Senior Member
    Join Date
    Mar 2007
    Posts
    706
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I run 52x18, so 50x18 would prolly be fine for ya.

  8. #8
    jerk store mathletics's Avatar
    Join Date
    Mar 2006
    Location
    Boston
    My Bikes
    '80s Chimo Garbage fixed 36/14, Centurion fixed 42/17
    Posts
    605
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I rode a 52/17 for a long time in Madison which has only a few small hills. 50/18 would be a pretty nice all around gear.

  9. #9
    Senior Member
    Join Date
    Jul 2007
    Posts
    182
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    thanks for the info, folks. guess i'll keep the 50 and pair it with an 18. next question, Bacchusbill says its tough to skid with a 53/17, would this be true for 50/18 as well?

  10. #10
    Utilitarian Boy Gyeswho's Avatar
    Join Date
    Jun 2006
    Location
    Bronx, NY
    My Bikes
    Check the sig to find out
    Posts
    3,235
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by gargiulo.mike View Post
    52/17 is pretty nice for now...
    you monster!!!

  11. #11
    Senior Member
    Join Date
    Mar 2007
    Posts
    706
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I'm an idiot..I thought I had a 52t upfront..after taking some photos of my bike today I realized it's actually a 53 not a 52...guess I'm running 79.5 inches

  12. #12
    Senior Member
    Join Date
    Sep 2006
    Location
    Van BC
    Posts
    3,739
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    50-18 shouldn't be too bad Transfixed. It's about a 73 inch gear assuming 700*23 tires. Anything from 65-75 inches is pretty good for skidding and fooling around, and the high end of that scale ought to be quite adequate for flat road rides around HI unless you are a speed beast. 53-17 is about 82 inches, that's a substantially bigger gear.

    You can figure out gear inches yourself using Rabbit at http://software.bareknucklebrigade.c...it.applet.html .

  13. #13
    Senior Member pirate's Avatar
    Join Date
    Apr 2006
    Posts
    978
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    i run 19 in the back. Lots of skid patches, gets me up all of the hills around here, except 1, and I don't spin out too bad coming down. I think its like 71 gi? 18 should be fine if you are hill-less.
    “When the spirits are low, when the day appears dark,
    When work becomes monotonous, when hope hardly seems worth having,
    Just mount a bicycle and go out for a spin down the road,
    Without thought on anything but the ride you are taking.”
    -Arthur Conan Doyle


  14. #14
    is as Gurgus does. Gurgus's Avatar
    Join Date
    Feb 2004
    Location
    Otisburg
    My Bikes
    A whole bunch o' bikes.
    Posts
    910
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I ran 52X18 on my conversion and I liked it alot. It was a bit like getting a train going at first, but after I got my leg muscles built up, it was no problem. The top end was beautiful. I liked passing cars on the road at the speed limit and catching the startled looks of passengers as they saw me go past.

    Now I've got a Paddywagon thats at 42X16, going down to 42X15 this week probably, which will get me close to the same ratio(@75GI) to get that huge top end again.

    I love going fast on a fix.

  15. #15
    Run What 'Ya Brung bonechilling's Avatar
    Join Date
    Jun 2006
    Posts
    5,696
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    You guys run 50/17 for spin? Jesus, I used to run like 41/17 for spin on my road training bike.

  16. #16
    yo yo yo yo yo
    Join Date
    Nov 2005
    Location
    delaware
    Posts
    2,518
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    50 20 on my pog... its nice

  17. #17
    Grumbly Goat Bushman's Avatar
    Join Date
    Jul 2007
    My Bikes
    bicycles with round wheels
    Posts
    896
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    50 x 16, but i'm cranking 180 mm cranks, once yer going, your going.....
    You ride a bike, we GET IT, no need to rant about it or look down on others....its JUST A BIKE...get over yourselves.

  18. #18
    Senior Member
    Join Date
    Mar 2005
    Location
    Madison, WI
    Posts
    2,209
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    i must be a wimp. I am running 48X19 on my new commuter.

  19. #19
    Grumbly Goat Bushman's Avatar
    Join Date
    Jul 2007
    My Bikes
    bicycles with round wheels
    Posts
    896
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    yer fine, i got a loooooong flat section (about 100km or more) that i ride on once in awhile, nice to have the 50x16 and just FLY along the flats. In the city we got hills, i runn smaller gears to suit, depending on where i'm going that day.
    You ride a bike, we GET IT, no need to rant about it or look down on others....its JUST A BIKE...get over yourselves.

  20. #20
    Senior Member
    Join Date
    Feb 2007
    Posts
    250
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Just curious, where in HI?
    I spent some time in Kaneohe Bay. Aside from Kailua, you weren't getting anywhere without some mountains...

  21. #21
    Senior Member
    Join Date
    Jul 2007
    Posts
    182
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by DannyRocks View Post
    Just curious, where in HI?
    I spent some time in Kaneohe Bay. Aside from Kailua, you weren't getting anywhere without some mountains...
    yea, the windward side (kailua/kaneohe) is flanked by the ko'olau mtn range to one side, and the pacific ocean on the other. you were pretty much trapped in. I live smack in the middle of the island (wahiawa / mililani) which is also known as the "central high plains" so things are flat as can be, for the most part. I also plan to ride in the city (honolulu / downtown) which is also pretty flat.
    I really need to learn the gear math that you all know so well. I still have no clue of what kind of difference I'd be feeling between a 16t and an 18t

    thanks for info/insight.

  22. #22
    is as Gurgus does. Gurgus's Avatar
    Join Date
    Feb 2004
    Location
    Otisburg
    My Bikes
    A whole bunch o' bikes.
    Posts
    910
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Transfixed06 View Post
    I really need to learn the gear math that you all know so well. I still have no clue of what kind of difference I'd be feeling between a 16t and an 18t

    thanks for info/insight.
    With a 52 in front the difference between an 18 th and 16th cog will be significant. Go 18 first, and when your legs become massive(and they will) move to the 16, if you can hack it.

  23. #23
    Senior Member
    Join Date
    Jul 2007
    Posts
    182
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I'm doing 50t front, does the above info still apply?

  24. #24
    Ride On!! PanPanX's Avatar
    Join Date
    Oct 2004
    Location
    Temple City, CA
    My Bikes
    2004 OCR3, 1989 Nishiki Sport, 2003 Kona Blast, 2007 Fuji Track
    Posts
    467
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    My bike has a stock 48x16, and I just ordered a 18t cog. Do you guys think I would need to make the chain longer? If so, where can I buy extensions? I dont want to buy a new chain if I dont have to, cause the bike is only a week old....

  25. #25
    Track Tricyclist kidtwisty's Avatar
    Join Date
    Aug 2007
    Location
    bay area
    Posts
    546
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I've always run 52x18 and i don't plan on changing it anytime soon. I think thats about 75'. It was basically my only option at the time but as soon as i started with it i fell in love. Never had any real trouble starting or stopping(skidding is actually beautifully fluid with it) and once you get going, you get going.

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
  •