Berodesign
01-31-05, 12:57 PM
Is this possible?
Bicycle Mechanics - 9-speed chain with old Biopace front cogs.
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moxfyre
01-31-05, 01:00 PM
The old chainring/new chain combination has been discussed a few times before.
A 9-speed chain has the same inside width (3/32") as a 5/6/7/8 speed chain, even though its outer width is smaller. Thus, old chainrings will work fine as long as they weren't meant for single-speed bikes (most use 1/8" chain).
I personally converted a mountain bike from 7 to 9 speed and the old chainrings worked fine. If you like the Biopace chainrings and they're not worn out, go for it.
A 9-speed chain has the same inside width (3/32") as a 5/6/7/8 speed chain, even though its outer width is smaller. Thus, old chainrings will work fine as long as they weren't meant for single-speed bikes (most use 1/8" chain).
I personally converted a mountain bike from 7 to 9 speed and the old chainrings worked fine. If you like the Biopace chainrings and they're not worn out, go for it.
Berodesign
01-31-05, 01:01 PM
The old chainring/new chain combination has been discussed a few times before.
A 9-speed chain has the same inside width (3/32") as a 5/6/7/8 speed chain, so old chainrings will work fine as long as they weren't meant for single-speed bikes (most use 1/8" chain). I personally converted a mountain bike from 7 to 9 speed and the old chainrings worked fine. If you like the Biopace chainrings and they're not worn out, go for it.
Dont have a clue if I like them or not... I dont even have a bike right now... (or do parts count?) :D
Just trying to make sure that I am not buying alot of stuff that wont be compatible.
A 9-speed chain has the same inside width (3/32") as a 5/6/7/8 speed chain, so old chainrings will work fine as long as they weren't meant for single-speed bikes (most use 1/8" chain). I personally converted a mountain bike from 7 to 9 speed and the old chainrings worked fine. If you like the Biopace chainrings and they're not worn out, go for it.
Dont have a clue if I like them or not... I dont even have a bike right now... (or do parts count?) :D
Just trying to make sure that I am not buying alot of stuff that wont be compatible.
moxfyre
01-31-05, 01:04 PM
Dont have a clue if I like them or not... I dont even have a bike right now... (or do parts count?) :D
Just trying to make sure that I am not buying alot of stuff that wont be compatible.
Uh, Biopace gets dissed a lot because people think it's not "high-performance" enough or something. I've ridden them a bit on a rigid MTB for easy rides around town, and I thought they felt good. For a voice of reason, read Sheldon Brown's biopace article (http://www.sheldonbrown.com/biopace.html). Basically he thinks they were a pretty good idea for everyone but road racers.
What kind of bike are you trying to build? Make sure the chainrings have the right bolt circle diameter for the cranks if you're getting them separately.
Just trying to make sure that I am not buying alot of stuff that wont be compatible.
Uh, Biopace gets dissed a lot because people think it's not "high-performance" enough or something. I've ridden them a bit on a rigid MTB for easy rides around town, and I thought they felt good. For a voice of reason, read Sheldon Brown's biopace article (http://www.sheldonbrown.com/biopace.html). Basically he thinks they were a pretty good idea for everyone but road racers.
What kind of bike are you trying to build? Make sure the chainrings have the right bolt circle diameter for the cranks if you're getting them separately.
Berodesign
01-31-05, 01:25 PM
Uh, Biopace gets dissed a lot because people think it's not "high-performance" enough or something. I've ridden them a bit on a rigid MTB for easy rides around town, and I thought they felt good. For a voice of reason, read Sheldon Brown's biopace article (http://www.sheldonbrown.com/biopace.html). Basically he thinks they were a pretty good idea for everyone but road racers.
What kind of bike are you trying to build? Make sure the chainrings have the right bolt circle diameter for the cranks if you're getting them separately.
A Albuch-Kotter frame with Shimano 600 components (or ultegra where I have to). A roadie that is, and according to Sheldon Brown (which I read before, but thx anyway) it shouldnt be a problem with Biopace on a roadie either. So I thought I give it a try.
What kind of bike are you trying to build? Make sure the chainrings have the right bolt circle diameter for the cranks if you're getting them separately.
A Albuch-Kotter frame with Shimano 600 components (or ultegra where I have to). A roadie that is, and according to Sheldon Brown (which I read before, but thx anyway) it shouldnt be a problem with Biopace on a roadie either. So I thought I give it a try.
moxfyre
01-31-05, 01:41 PM
A Albuch-Kotter frame with Shimano 600 components (or ultegra where I have to). A roadie that is, and according to Sheldon Brown (which I read before, but thx anyway) it shouldnt be a problem with Biopace on a roadie either. So I thought I give it a try.
Cool. Sounds a lot nicer than my project bikes. Are 600 components roughly the level of today's Ultegra?
Cool. Sounds a lot nicer than my project bikes. Are 600 components roughly the level of today's Ultegra?
Berodesign
01-31-05, 01:52 PM
Cool. Sounds a lot nicer than my project bikes. Are 600 components roughly the level of today's Ultegra?
Well, the rear derailleur is new and the other one I got on a old bike has been in a crash (prolly with a car) but still works good. And since the 600 I use is friction shifters on the downtube then the crispness of a shift is more in my fingers then in the shifters :) Brakes seems good, havent tested newer ones but I think they feel fine. The headset is a old loose balls so that is really nice.
So basically I think that old 600 is the same quality as new Ultegra, but of course, new Ultegra got STI-brifters, cassette headset and cassette bottom bracket and so on. So it might be "better" then old 600 but quality speaking and "level" I think they are the same. With older stuff it comes down even more to proper adjustment of everything and some practise using friction shifters.
I like it though.
If you want to see how work progresses (slowly) take a look at Classic and Vintage and look out for a thread named "Albuch-Kotter Shimano 600 project"... thats me :)
Well, the rear derailleur is new and the other one I got on a old bike has been in a crash (prolly with a car) but still works good. And since the 600 I use is friction shifters on the downtube then the crispness of a shift is more in my fingers then in the shifters :) Brakes seems good, havent tested newer ones but I think they feel fine. The headset is a old loose balls so that is really nice.
So basically I think that old 600 is the same quality as new Ultegra, but of course, new Ultegra got STI-brifters, cassette headset and cassette bottom bracket and so on. So it might be "better" then old 600 but quality speaking and "level" I think they are the same. With older stuff it comes down even more to proper adjustment of everything and some practise using friction shifters.
I like it though.
If you want to see how work progresses (slowly) take a look at Classic and Vintage and look out for a thread named "Albuch-Kotter Shimano 600 project"... thats me :)
sydney
01-31-05, 02:12 PM
Cool. Sounds a lot nicer than my project bikes. Are 600 components roughly the level of today's Ultegra?600 was below DA. Ultegra is below DA. 600 is old and clunky compared to the newer stuff,but plenty functional. 600 goes back to before index shifting.
moxfyre
01-31-05, 02:49 PM
600 was below DA. Ultegra is below DA. 600 is old and clunky compared to the newer stuff,but plenty functional. 600 goes back to before index shifting.
Thanks, sydney, I saw an ad for a 600 components and wanted to know what they were like. Must... resist... temptation to buy more project bikes.
Thanks, sydney, I saw an ad for a 600 components and wanted to know what they were like. Must... resist... temptation to buy more project bikes.