Go Back  Bike Forums > Bike Forums > Classic & Vintage
Reload this Page >

52t outer chain-ring vs 54t outer chain-ring

Notices
Classic & Vintage This forum is to discuss the many aspects of classic and vintage bicycles, including musclebikes, lightweights, middleweights, hi-wheelers, bone-shakers, safety bikes and much more.

52t outer chain-ring vs 54t outer chain-ring

Old 08-20-13, 11:35 AM
  #1  
ka6uup
Junior Member
Thread Starter
 
Join Date: May 2004
Posts: 14
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
52t outer chain-ring vs 54t outer chain-ring

I have a '80s Raleigh with a Sugino 5 arm crank with 52t-42t 130 bcd chain-rings and a Shimano 14-15-17-19-21-24 cog set.
I need to replace the outer chain-ring and am wondering:
Will any 5 arm 52t 130 bcd gear fit my cranks?
What would be the effect of replacing the 52t gear with a 54t gear?
Thanks much for your help,
Chuck

Last edited by ka6uup; 08-20-13 at 11:38 AM. Reason: spelling/grammer
ka6uup is offline  
Old 08-20-13, 11:41 AM
  #2  
Ex Pres 
Cat 6
 
Ex Pres's Avatar
 
Join Date: Dec 2007
Location: Mountain Brook, AL
Posts: 7,369
Mentioned: 24 Post(s)
Tagged: 0 Thread(s)
Quoted: 449 Post(s)
Liked 95 Times in 66 Posts
Yes, any 5 hole 130bcd ring will work.
Have you run a gear calculator table to see the effect on overlaps, etc? LINK to Sheldon's.

According to the results, @100RPM, your speed in top gear would go from ~30mph to ~31mph.

And just an aside, in your edit, it's spelled grammar

Edit: OT, but I see the "@" now links to members. Wow, just about as worthless as hashtags.
And back OT, I don't think it will be an issue at 54/42, but on my bike that has a 54/40, I get chain rub in the small front/small rear combo (rubs the large ring on the inside).
__________________
72 Frejus, Holdsworth Record & special CNC / 74 Italvega NR / c80 ?French? / 82 Raleigh Intl MkII / 83 Trek 620 / 87 Centurion IM MV / 03 Casati Dardo / 08 BF IRO / 09 Dogma FPX / 10 Vassago Fisticuff


Last edited by Ex Pres; 08-20-13 at 11:51 AM.
Ex Pres is offline  
Old 08-20-13, 11:47 AM
  #3  
Hudson308 
Mr. Anachronism
 
Hudson308's Avatar
 
Join Date: Jan 2013
Location: Somewhere west of Tobie's
Posts: 2,036

Bikes: fillet-brazed Chicago Schwinns, and some other stuff

Mentioned: 28 Post(s)
Tagged: 0 Thread(s)
Quoted: 506 Post(s)
Liked 200 Times in 138 Posts
One thing to verify is that the derailleurs will both handle the increased difference between the smallest and biggest chainring tooth count. Chances are they will, but it bears mentioning. What I will say is that unless you're a pretty strong rider that races on a regular basis, you won't be able to use a 54-tooth chainring very often. If you need to shift to the biggest rear cog to do so, you'll be running the rear derailleur at an angle that is not recommended.
__________________
"If we don't change direction soon, we'll end up where we're going." -Irwin Corey
Hudson308 is offline  
Old 08-20-13, 12:06 PM
  #4  
Chombi
Senior Member
 
Chombi's Avatar
 
Join Date: Jul 2009
Posts: 11,138

Bikes: 1986 Alan Record Carbonio, 1985 Vitus Plus Carbone 7, 1984 Peugeot PSV, 1972 Line Seeker, 1986(est.) Medici Aerodynamic (Project), 1985(est.) Peugeot PY10FC

Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 144 Post(s)
Likes: 0
Liked 13 Times in 13 Posts
NOS 54T rings come up for sale at eBay often enough....and usually for quite cheap, compared to 52T & 53T rings.....for good reasons....
I don't think that even the pros used them regularly, except for maybe the flattest/fastest TT courses.
Maybe if you have legs as big and pwerful as Eric Heiden did, you can mash the 54T ring to great effect......
Chombi is offline  
Old 08-20-13, 12:12 PM
  #5  
ka6uup
Junior Member
Thread Starter
 
Join Date: May 2004
Posts: 14
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Thanks. That is exactly what I needed to know.
Chuck
ka6uup is offline  
Old 08-20-13, 12:18 PM
  #6  
GrayJay
Senior Member
 
GrayJay's Avatar
 
Join Date: Sep 2009
Location: EagleRiver AK
Posts: 1,245
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Likes: 0
Liked 3 Times in 3 Posts
If your current drivetrail does not provide a tall enough high gear, it would be more effective to switch your 6-speed FW to a 7-speed freewheel that has an 13 (or 12) tooth small cog. A 13t rear cog will be about twice the increase in gearing from a 14t as you would get going from a 52 to 54t chainring.
GrayJay is offline  
Old 08-20-13, 12:26 PM
  #7  
ThermionicScott 
7-speed cultist
 
ThermionicScott's Avatar
 
Join Date: Aug 2011
Location: CID
Posts: 20,100

Bikes: 1991 Bianchi Eros, 1964 Armstrong, 1988 Diamondback Ascent, 1988 Bianchi Premio, 1987 Bianchi Sport SX, 1980s Raleigh mixte (hers)

Mentioned: 88 Post(s)
Tagged: 0 Thread(s)
Quoted: 2794 Post(s)
Liked 740 Times in 519 Posts
Why stop at 54T? Loose Screws has one more 56T in stock.
__________________
Originally Posted by chandltp View Post
There's no such thing as too far.. just lack of time
Originally Posted by noglider
People in this forum are not typical.
RUSA #7498
ThermionicScott is offline  
Old 08-20-13, 12:26 PM
  #8  
repechage
Senior Member
 
Join Date: Jun 2006
Posts: 15,593
Mentioned: 103 Post(s)
Tagged: 0 Thread(s)
Quoted: 1789 Post(s)
Liked 652 Times in 506 Posts
Originally Posted by Chombi View Post
NOS 54T rings come up for sale at eBay often enough....and usually for quite cheap, compared to 52T & 53T rings.....for good reasons....
I don't think that even the pros used them regularly, except for maybe the flattest/fastest TT courses.
Maybe if you have legs as big and pwerful as Eric Heiden did, you can mash the 54T ring to great effect......
John Howard stated that 52t chainrings just don't cut it.
repechage is offline  
Old 08-20-13, 12:38 PM
  #9  
gaucho777 
Senior Member
 
gaucho777's Avatar
 
Join Date: Aug 2009
Location: Berkeley, CA
Posts: 6,773

Bikes: '72 Cilo Pacer, '72 Gitane Gran Tourisme, '72 Peugeot PX10, '73 Speedwell Ti, '74 Nishiki Competition, '74 Peugeot UE-8, '75 Peugeot PR-10L, '85 De Rosa Pro, '86 Look Equipe 753, '86 Look KG86, '89 Parkpre Team, '90 Parkpre Team MTB, '90 Merlin

Mentioned: 72 Post(s)
Tagged: 0 Thread(s)
Quoted: 572 Post(s)
Liked 412 Times in 180 Posts
My understanding from the OPs original post is that the issue is not trying to get different gearing, but rather a worn out (or maybe damaged) front ring.

There isn't much difference between a 54t & 52t, but a 52 is probably slightly more useful.

Also, sticking with a 52t ring will avoid your having to move the front derailleur up (and potentially leave another set of marks on the seat tube).

Here's one option:
https://www.ebay.com/itm/Sugino-52t-1...item257f466ffb
gaucho777 is offline  
Old 08-20-13, 12:50 PM
  #10  
RubberLegs
Senior Member
 
RubberLegs's Avatar
 
Join Date: Mar 2011
Location: Tampa Bay, Florida
Posts: 1,731

Bikes: 87 Bridgestone 550 (Shocking Electric Metallic Pink)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time in 1 Post
I have 52s on the front end of 3 of my bikes...and the chain usually stays there (here in flat land Florida) on the freewheel, it does not go to the big cog (I try NOT to cross chain) and is usually in the middle of the gear cluster avg about 18-19 mph
RubberLegs is offline  
Old 08-20-13, 08:23 PM
  #11  
rhm
multimodal commuter
 
rhm's Avatar
 
Join Date: Nov 2006
Location: NJ, NYC, LI
Posts: 19,607

Bikes: 1940s Fothergill, 1959 Allegro Special, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1974 Fuji "the Ace", 1976 Holdsworth 650b conversion rando bike, 1983 Trek 720 tourer, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...

Mentioned: 523 Post(s)
Tagged: 0 Thread(s)
Quoted: 1783 Post(s)
Liked 283 Times in 189 Posts
Originally Posted by ThermionicScott View Post
Why stop at 54T? Loose Screws has one more 56T in stock.
A lot of guys have a 13t small cog on the freewheel or cassette. The difference between a 52t and 56t chain ring is the same as the difference between a 13t and 14t cog. So a 54t is like halfway between the two. Not a big deal.
rhm is offline  
Old 08-21-13, 04:53 PM
  #12  
RobbieTunes
Banned
 
Join Date: Dec 2007
Posts: 27,297
Mentioned: 34 Post(s)
Tagged: 1 Thread(s)
Quoted: 378 Post(s)
Liked 1,370 Times in 884 Posts
Originally Posted by ka6uup View Post
What would be the effect of replacing the 52t gear with a 54t gear?
Pain.
RobbieTunes is offline  
Old 08-21-13, 04:56 PM
  #13  
rootboy 
Senior Member
 
rootboy's Avatar
 
Join Date: Apr 2005
Location: Wherever
Posts: 16,756
Mentioned: 88 Post(s)
Tagged: 0 Thread(s)
Quoted: 550 Post(s)
Likes: 0
Liked 115 Times in 67 Posts
I'm going the other direction. 52 to 50.
J. Howard I aint.
rootboy is offline  
Old 08-22-13, 10:18 AM
  #14  
due ruote 
Senior Member
 
due ruote's Avatar
 
Join Date: Dec 2006
Posts: 7,341
Mentioned: 23 Post(s)
Tagged: 0 Thread(s)
Quoted: 771 Post(s)
Liked 263 Times in 178 Posts
Originally Posted by RobbieTunes View Post
Pain.
lol

I remember an interview with some pro rider (I don't remember who) a few years ago after a tt. He was grousing about how he kept spinning out in his 56 and wished he'd had a 57. Absurd.
due ruote is offline  
Old 08-22-13, 04:00 PM
  #15  
dbakl
Senior Member
 
Join Date: Nov 2005
Posts: 5,770

Bikes: Cinelli, Paramount, Raleigh, Carlton, Zeus, Gemniani, Frejus, Legnano, Pinarello, Falcon

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Originally Posted by RobbieTunes View Post
Pain.
Ha, ha, my feelings exactly. I've been running 49s and 50s on the outer since the 70s. I can't push those big gears.
dbakl is offline  
Old 08-22-13, 04:16 PM
  #16  
shoota 
Senior Member
 
shoota's Avatar
 
Join Date: Jun 2012
Location: Stillwater, OK
Posts: 7,304
Mentioned: 22 Post(s)
Tagged: 0 Thread(s)
Quoted: 1463 Post(s)
Liked 279 Times in 205 Posts
I have the correct 52T Sugino chainring, if you want it I could be persuaded to sell it.
__________________
2014 Cannondale SuperSix EVO 2
2019 Salsa Warbird
shoota is offline  
Old 08-22-13, 08:37 PM
  #17  
RobbieTunes
Banned
 
Join Date: Dec 2007
Posts: 27,297
Mentioned: 34 Post(s)
Tagged: 1 Thread(s)
Quoted: 378 Post(s)
Liked 1,370 Times in 884 Posts
Originally Posted by rootboy View Post
I'm going the other direction. 52 to 50.
J. Howard I aint.
Riding pic-Raleigh 1977. ........ Standing pic-Charlotte 1977
. ,

Last edited by RobbieTunes; 09-24-20 at 10:26 AM.
RobbieTunes is offline  
Old 08-22-13, 08:42 PM
  #18  
John E
feros ferio
 
John E's Avatar
 
Join Date: Jul 2000
Location: www.ci.encinitas.ca.us
Posts: 20,335

Bikes: 1959 Capo Modell Campagnolo; 1960 Capo Sieger (2); 1962 Carlton Franco Suisse; 1970 Peugeot UO-8; 1982 Bianchi Campione d'Italia; 1988 Schwinn Project KOM-10;

Mentioned: 36 Post(s)
Tagged: 0 Thread(s)
Quoted: 950 Post(s)
Liked 335 Times in 251 Posts
Originally Posted by rootboy View Post
I'm going the other direction. 52 to 50.
J. Howard I aint.
Been there ... done that on the Bianchi. Was: 52-42/13-15-17-19-21-23; Is: 50-42/14-16-18-20-23-26
Difference: 96 top instead of 108 (plenty for me); 44 bottom instead of 49 (seldom used, but nice-to-have Granny); better ratiometric progression

My 1971 Nishiki came w/ a 54-47 ringset, with a 14-34 5-speed freewheel. The 104 top end (almost exactly between 52/14 and 52/13, as others have noted) was OK, but I didn't miss it when I dropped back to 100 or even 96.
__________________
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
John E is offline  
Old 08-22-13, 11:19 PM
  #19  
ThermionicScott 
7-speed cultist
 
ThermionicScott's Avatar
 
Join Date: Aug 2011
Location: CID
Posts: 20,100

Bikes: 1991 Bianchi Eros, 1964 Armstrong, 1988 Diamondback Ascent, 1988 Bianchi Premio, 1987 Bianchi Sport SX, 1980s Raleigh mixte (hers)

Mentioned: 88 Post(s)
Tagged: 0 Thread(s)
Quoted: 2794 Post(s)
Liked 740 Times in 519 Posts
Originally Posted by dbakl View Post
Ha, ha, my feelings exactly. I've been running 49s and 50s on the outer since the 70s. I can't push those big gears.
Originally Posted by John E View Post
Been there ... done that on the Bianchi. Was: 52-42/13-15-17-19-21-23; Is: 50-42/14-16-18-20-23-26
Difference: 96 top instead of 108 (plenty for me); 44 bottom instead of 49 (seldom used, but nice-to-have Granny); better ratiometric progression

My 1971 Nishiki came w/ a 54-47 ringset, with a 14-34 5-speed freewheel. The 104 top end (almost exactly between 52/14 and 52/13, as others have noted) was OK, but I didn't miss it when I dropped back to 100 or even 96.
+1. My other post in this thread notwithstanding, I've been really happy with my gearing since reducing my big ring to 48T, giving me a top gear in the upper 90s with a 13-XX cassette. The times I want a gear over 100" are very few, and the times I need it are nil.
__________________
Originally Posted by chandltp View Post
There's no such thing as too far.. just lack of time
Originally Posted by noglider
People in this forum are not typical.
RUSA #7498
ThermionicScott is offline  
Old 08-23-13, 01:16 AM
  #20  
peazweag
Senior Member
 
peazweag's Avatar
 
Join Date: Sep 2010
Location: albany,oregon
Posts: 350

Bikes: 1973 RALEIGH SUPER COURSE,85 FUI ALLEGRO

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 1 Time in 1 Post
I run a 48t big ring which is plenty for me
peazweag is offline  
Old 08-25-13, 06:41 AM
  #21  
old's'cool 
curmudgineer
 
old's'cool's Avatar
 
Join Date: Dec 2009
Location: Chicago SW burbs
Posts: 4,360

Bikes: 2 many 2 fit here

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 238 Post(s)
Liked 41 Times in 31 Posts
In the OP's position I would stick with 52T, unless I was not satisified with the gear ratios in the first place. 52T are by far the most ubiquitous chainrings in my experience, and hence the easiest to find and afford, generally.
__________________
Geoff
"There is no Fail without Try" - Yoda Simpson
old's'cool is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
spectastic
Bicycle Mechanics
4
03-05-15 09:45 AM
yummygooey
Singlespeed & Fixed Gear
9
07-06-11 06:35 PM
Oramas
Singlespeed & Fixed Gear
23
04-16-11 09:03 PM
Phantoj
Bicycle Mechanics
1
05-03-10 11:50 AM
kamtsa
Bicycle Mechanics
6
12-31-09 02:55 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.