Anyone still using BioPace chainrings?
#1
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Anyone still using BioPace chainrings?
I just picked up an '87 Trek 520 (yay!) and have it together and did a quick fitment ride, and I gotta say, those Biopace rings aren't bothering me too much. Thought they would.
My initial plan to to replace those right away, but not so sure now. I am going to log some miles on it today, so maybe I'll change my mind.
Anyone still running those un-round rings anymore?
My initial plan to to replace those right away, but not so sure now. I am going to log some miles on it today, so maybe I'll change my mind.
Anyone still running those un-round rings anymore?
#2
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this comes up every few months- I have some and I like them. I barely notice unless im climbing in the small ring - as its nearly square. I got to say, it seems to actually help, but it might just be illusion.
#4
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Yep I'm still using them. Got them on my '90 Schwinn Traveler and '87 Centurulion Iroman Expert. I like them and have no plans to swap out
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I've only had one bike with biopace, an '88 Shogun, and didn't notice anything that'd cause me to change it out.
Except for the ugly yellow sticker.
Except for the ugly yellow sticker.
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If you decide you don't like them, I have a trek frame from the same year that could use a donation.
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I saw an article recently that a new company is revisiting this old idea and making new oval chainrings. My LBS has some biopace rings in the parts bin and I have half a mind to pick them up and put them on an old bike just for kicks. seems like a good idea in theory anyway.
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I think, @Knet, the rings on your bike are probably the milder flavor BioPace, not quite as un-round as some earlier models. My '87 Tempo has them and I have no problem with them. Only notice the difference when I'm looking down at them, or standing up to mash up a hill.
My Cannondale ST came with one of the more lumpy versions on the inner (30T) ring; drove me nuts!
My Cannondale ST came with one of the more lumpy versions on the inner (30T) ring; drove me nuts!
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#11
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Have 2 bikes with triples on them.
One is a biopace triple, but a round granny ring.
One is a SR Ovaltech triple, but with a round granny ring.
I turn the pedals and the chain moves the bike. I dont notive the oblong shape on either.
...except for the granny, which is why each is now a round ring.
One is a biopace triple, but a round granny ring.
One is a SR Ovaltech triple, but with a round granny ring.
I turn the pedals and the chain moves the bike. I dont notive the oblong shape on either.
...except for the granny, which is why each is now a round ring.
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I don't use it, but I have single 52t chainring, that came on an Exage crank, that was on a bike set up as a single speed. It's in great condition, but I'd only use a 52t, if a bear was chasing me down a mountain.
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I have Biopace on a road bike and SR Ovaltech on a mountain bike and I don't feel any significant difference between them and the round rings on my other bikes.
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I have Biopace on my winter bike (Giant Yukon) and my Miyata 610...I like them, but I don't think they make much difference. I certainly wouldn't change them out.
#15
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I have biopace on 4 of my 5 Ironman. As a 86 bicycle guide review stated, at best it helped slightly, at worst you don't notice.
I tend to agree.
I tend to agree.
#16
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My 1989 Nishiki Ariel came with them and are still on there now. Ride the bike a couple of times a week still. They are fine. Notice to that other companies are evolving that concept and calling them their own proprietary names these days?
#17
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I saw an article recently that a new company is revisiting this old idea and making new oval chainrings. My LBS has some biopace rings in the parts bin and I have half a mind to pick them up and put them on an old bike just for kicks. seems like a good idea in theory anyway.
One big difference I 'think' I remember hearing about was that they were clocked differently than Bio Pace.
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I have biopace rings on my 1987 Stumpjumper comp. I don't really notice them and certainly wouldn't swap them out.
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#19
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However, there are people that swear Biopace ruins knees.
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I wanted to get back to a 42T road ring and found a couple new, in-packaging Ultegra-level Biopace rings on eBay a couple years ago. I think I paid $15 for each of them.
I don't notice them as much as I remembered on my '88 Specialized Sirrus; the effect was more pronounced on the smaller rings I had on my mountain bike back then (28/38/48).
I don't notice them as much as I remembered on my '88 Specialized Sirrus; the effect was more pronounced on the smaller rings I had on my mountain bike back then (28/38/48).
#21
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I've had 3 or 4 rigs with biopace rings. Never really noticed a difference between BP and round rings.
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I plan to try them soon. A kind BFer sent them to me. When I showed them to my wife, she made the funniest face!
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