Stainless Chainring?
11-04-04 | 01:39 PM
#1
Thread Starter
Junior Member
Joined: Nov 2004
Posts: 23
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From: SF
Stainless Chainring?
Anyone know if its possible to get a Stainless Steel 1/8" chainring for 144bcd (5 arm)?
I know surly makes some but they don't seem to make them for 5 arm 144 (unless I'm wrong).
Also, is there any use to going Stainless on the chainring (anyone else running one)?
I know surly makes some but they don't seem to make them for 5 arm 144 (unless I'm wrong).
Also, is there any use to going Stainless on the chainring (anyone else running one)?
11-04-04 | 03:24 PM
#4
shot
Joined: Jul 2003
Posts: 297
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Surly's website says they don't make the 144mmBCD for 5-arm.
Why would someone use stainless?
Surly says:
Stainless chainrings are tougher than aluminum chainrings. For single-speed and tandem timing chain applications, where the wear isn't shared between 2 or 3 chainrings, our stainless rings will outlast and outperform aluminum.
Why would someone use stainless?
Surly says:
Stainless chainrings are tougher than aluminum chainrings. For single-speed and tandem timing chain applications, where the wear isn't shared between 2 or 3 chainrings, our stainless rings will outlast and outperform aluminum.
11-04-04 | 06:00 PM
#5
Thread Starter
Junior Member
Joined: Nov 2004
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From: SF
I've got a CNC mill glomarduck, but I'm not going to bother if it won't make much difference. Not a trivial project, I must say, and the end result isn't cool enough to justify that kind of time, says I.
11-04-04 | 07:05 PM
#8
fast retro grouch
Joined: Oct 2004
Posts: 123
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From: Seattle
Bikes: Gunnar Street Dog, pink GIOS, Iron Horse MTB
well, where the chainline is nearly perfect, the wear is much less than in a derailleur system. people doing lots of miles on Rohloffs have to replace their cogs fairly seldom.
For jumping or other abuse I could see it, but then why are you using track or old campy cranks?
For jumping or other abuse I could see it, but then why are you using track or old campy cranks?
11-04-04 | 09:49 PM
#10
old codger
Joined: Sep 2004
Posts: 1,124
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From: Victoria B.C.
Yup. A 750cc racing motorbike generating 120hp uses alu for the rear cog (the big one) and heat treated steel for the front (the small one). These last approx 20,000 miles on a perfect chainline. I believe that a human generates 1/12th of an hp.
Don't believe for a second that skidding generates more force that whacking the throttle at 5,000 rpm.
Don't believe for a second that skidding generates more force that whacking the throttle at 5,000 rpm.
11-07-04 | 12:51 PM
#11
Senior Member
Joined: Sep 2004
Posts: 1,101
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From: Baltimore
Bikes: bianchi
I never used this but it looks interesting....
https://www.emachineshop.com/
I am 100% sure that a custom chainring would be prohibitively expensive. I don't even know if special heat treating would be required.
Nice thing about the emachineshop is that you get a quote upfront.
https://www.emachineshop.com/
I am 100% sure that a custom chainring would be prohibitively expensive. I don't even know if special heat treating would be required.
Nice thing about the emachineshop is that you get a quote upfront.
11-07-04 | 01:16 PM
#12
無くなった
Joined: Mar 2004
Posts: 5,072
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From: Sci-Fi Wasabi
Bikes: I built the Bianchi track bike back up today.
Originally Posted by icithecat
Yup. A 750cc racing motorbike generating 120hp uses alu for the rear cog (the big one) and heat treated steel for the front (the small one). These last approx 20,000 miles on a perfect chainline. I believe that a human generates 1/12th of an hp.
Don't believe for a second that skidding generates more force that whacking the throttle at 5,000 rpm.
Don't believe for a second that skidding generates more force that whacking the throttle at 5,000 rpm.
