Chainrings that are ROUND!
#26
Senior Member

Joined: Feb 2008
Posts: 531
Likes: 0
My All-City ring was affordable and very round. Thick and well-made too.
And of course, my high end track rings (Sugino 75, Omnium) are super round and most excellent.
The Salsa rings I've used on single speed mtbs and my 'cross bike are plenty round and well-made.
And of course, my high end track rings (Sugino 75, Omnium) are super round and most excellent.
The Salsa rings I've used on single speed mtbs and my 'cross bike are plenty round and well-made.
#27
King of the Hipsters
Joined: Jan 2005
Posts: 2,128
Likes: 2
From: Bend, Oregon
Bikes: Realm Cycles Custom
Perfect roundness doesn't exist.
Generally, though, expensive equates to more round and inexpensive to less round.
The match up between the crank and the chainring can also influence roundness.
I've heard good things about Blackspire.
I have a Sugino 75 track chainring that, round or not, I consider an engineering work of art.
A lot of money for pretty.
Generally, though, expensive equates to more round and inexpensive to less round.
The match up between the crank and the chainring can also influence roundness.
I've heard good things about Blackspire.
I have a Sugino 75 track chainring that, round or not, I consider an engineering work of art.
A lot of money for pretty.
#28
Senior Member
Joined: Aug 2010
Posts: 229
Likes: 0
From: lynnwood, WA
Bikes: AWOL, Stache 7, Keirin Pro
Or you could just get a NOS Campagnolo crank set at your bike junk yard!
wait that's right not every city has one of those.
$40.00 seems pretty cheap to me and I'm sure Campy rings will out live most of my other components.
wait that's right not every city has one of those.
$40.00 seems pretty cheap to me and I'm sure Campy rings will out live most of my other components.
#29
Especially with POLYGOOOOOOOONS!!!!!!!!!!!!!!!!!
vvvvPVD awesomnessvvvv
https://www.pvdwiki.com/index.php?tit...th_Calculation
vvvvPVD awesomnessvvvv
https://www.pvdwiki.com/index.php?tit...th_Calculation
#30
The space coyote lied.



Joined: Sep 2008
Posts: 48,676
Likes: 10,953
From: dusk 'til dawn.
Bikes: everywhere
I guess if you wanna subscribe to that chainring is a polygon crap your complaint would have to be "My chainring polygon is not equilateral
"
I'm gonna keep saying they're either round or not.
"I'm gonna keep saying they're either round or not.
#31
GONE~
Joined: Apr 2010
Posts: 6,747
Likes: 0
I am thinking of picking up an All City 144 ring, unless I can find one that is rather affordable.
#32
Paste Taster
Joined: May 2006
Posts: 4,392
Likes: 0
From: Sacramento, CA
Bikes: , Jury Bike, Moto Outcast 29, Spicer standard track frame and spicer custom steel sprint frame.
I have had round rings from sugino, fsa, kazane, and sram thats all I have owned unfortunately can't speak to anything else
#33
i smell bacon
Joined: Mar 2010
Posts: 5,574
Likes: 1
Bikes: Geekhouse Deerfield, GT Edge Ti, Spooky Skeletor, TET Track, Ritchey P-650b, Bridgestone MB-3
I've had a 44t Sugino Messenger ring that was pretty round and a 48t Omnium ring that is very round. The stock aluminum crap on my Motobecane Track was tolerable.
#35
King of the Hipsters
Joined: Jan 2005
Posts: 2,128
Likes: 2
From: Bend, Oregon
Bikes: Realm Cycles Custom
One determines roundness of a chainring from tight and loose spots in the chain during pedal rotation.
However, even if one had a perfectly round chainring (doesn't exist), one would still have an out of round cog, an out of round hub, an out of round crank star, an off-center bottom bracket spindle, a set of unsquare or unparallel dropouts, and a misaligned bottom bracket shell.
One reduces tight and loose spots in one's chain by throwing money at it or by accidentally getting fairly round, properly centered and properly aligned components.
If one has his chain too tight, it might seem as if one has no tight and loose spots, but, in reality, the frame and components flex to accomodate the constant change in tension.
Loosen your chain until you have visible slack, and then slowly rotate your pedals and watch the slack come and go.
Sheldon Brown's chainring adjusting method will help a little, but only a little.
However, even if one had a perfectly round chainring (doesn't exist), one would still have an out of round cog, an out of round hub, an out of round crank star, an off-center bottom bracket spindle, a set of unsquare or unparallel dropouts, and a misaligned bottom bracket shell.
One reduces tight and loose spots in one's chain by throwing money at it or by accidentally getting fairly round, properly centered and properly aligned components.
If one has his chain too tight, it might seem as if one has no tight and loose spots, but, in reality, the frame and components flex to accomodate the constant change in tension.
Loosen your chain until you have visible slack, and then slowly rotate your pedals and watch the slack come and go.
Sheldon Brown's chainring adjusting method will help a little, but only a little.
#36
roadie (mostly)
Joined: Aug 2004
Posts: 141
Likes: 0
From: Phoenix, AZ
Bikes: Iron Horse Cyclone and a Jamis Exile
#37
One-track, one-speed mind
Joined: Oct 2010
Posts: 358
Likes: 0
From: Columbia, MO
Bikes: Surly Karate Monkey, Schwinn Le Tour Luxe, Rustbelt Marco polo bike
Sadly, due to travel this weekend, I may not get to ride it until next week. I'll keep you posted though, Vix.
Last edited by XianRL; 02-17-11 at 01:42 AM. Reason: grammar
#41
GONE~
Joined: Apr 2010
Posts: 6,747
Likes: 0
I am planning to get one of these at a shop near my house, but I am not sure of the quality of this. Any feedbacks?
https://wheelandsprocket.com/product/...d-1-8-7136.htm
I guess I'm debating over rather or not I want a 6061 ring or should I spend a little more and get a 7075, like a FSA or Miche or All-City.
https://wheelandsprocket.com/product/...d-1-8-7136.htm
I guess I'm debating over rather or not I want a 6061 ring or should I spend a little more and get a 7075, like a FSA or Miche or All-City.
Last edited by Squirrelli; 02-19-11 at 03:57 AM.
#42
i smell bacon
Joined: Mar 2010
Posts: 5,574
Likes: 1
Bikes: Geekhouse Deerfield, GT Edge Ti, Spooky Skeletor, TET Track, Ritchey P-650b, Bridgestone MB-3
Did you upgrade to a 144BCD crankset?
I've seen 7075 FSA rings cheaper than that. But I guess shipping to Canada would kill the deal, huh?
I've seen 7075 FSA rings cheaper than that. But I guess shipping to Canada would kill the deal, huh?
#45
THE STUFFED


Joined: Oct 2009
Posts: 12,671
Likes: 21
From: San Francisco, CA
Bikes: R. Sachs Simplicity; EAI Bareknuckle; Madone SLR9 Gen 8
Surly's products overall are of good quality, therefore the price; not that many ppl use their chainrings however...
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