For quite some time now I have been discarding Bio-Pace anything, thinking it to have little or no value. Am I wrong? Do people actually want these cranks and rings?

Personally, I do not like them but that is just me.

There does seem to be a market for them - no idea if it's just the "period-correct/authentic" thing, or if some folks actually like them. And if you come up with a set of 110/74 (26/36/46 or 28/38/48) or 130 (39/52) bcd rings, toss 'em my way - I'd like to give 'em a try on my 'bent.

SP
Bend, OR

There is a market for them. I tried to find a 39t ring for my double to no avail. Right now I'm running a 39t round ring with a 52t Biopace ring.

I have a triple bio[ace set-upon ana old mountain bike and like it quite a bit. Am I coorect in understanding that you are discarding rings and whole cranksets?

I don't know if they've got value, but I don't think they're worthless. I like them and have several sets, but the people who hate them seem to be more vocal about it...

I like them. In general I take a dim view of all those crazy Shimano innovations, but biopace is a good one. Sheldon Brown said you could even use biopace rings with an IGH or single speed, but I did not find that to be the case. So I don't use them much, since I don't like derailleurs much. If anyone has a really big 110 BCD ring, like 62T or something, please let me know... that's what I need for my recumbent.

I have sold a couple of sets of rings on CL for about $25 a set. Sold both sets locally (Chicagoland) but had an inquiry from the great Northwestern region.

I liked em just fine on my Miyata 1000....I didn't find it to be a really noticable difference from round rings though.

I like them on my MTB

+1... The cranks are standard cranks, the only differences are the chain rings. If you are throwing out the cranks you are throwing out cranks that can be used with round rings as easily as biopace...

I use them as trade bait. Some of the local fellows like them.

-Kurt

Not if I find out there is a market for them. How many have I pitched? And, for what it is worth, The Old Shed just can't hold all the stuff that comes my way.

Nope, tossed rings, cranks and all.

face palm!
The cranks are the same as any other, the rings are biopace ad can b easily replaced. Biopace make great parts for flip bikes.
I'll toss biopac on them and sell them while keeping the round rings for myself, or a single speed or 1x8 build etc.

I've actually wanted to give them a shot, just to see if I actually liked them or not. If you happen to have/find a crank-set that has a 36-40tooth ring on it, shoot me a PM.

Personally, I cannot see much difference in feel when I have used Bio-pace but I have not used them much. I developed a serious dislike for oval rings after my experience with my Motobecane Mirage, fitted with this...



I'd like to see anybody spin that crank at 80rpm:-(

Feel free to toss as many Biopace-equipped cranks you want over here.

-Kurt

I think somebody is trolling

Otherwise, I'll take ring sets as spares. I like them on my MTB, and I just started using a set on a road bike, jury is still out.

They usually fetch $10 a set on Ebay so I put them there.
They frequently come on triple cranks and I like triples.

After reading your great web site I'd never expect you to throw out perfectly good gear. I rode a flip bike that had them for a while and I think I could get to like them. They are certainly worth using in trade, easy Ebay income, or for flip bikes.

Sec..er..thirded? I'm gathering parts for a mutant hybrid build, and I'm thinking of using a Biopace ring on the front just because I've always wanted to try one. Mostly what I've heard is they're easier on the knees.

You won't find one. 40t was as small as they made them in 130BCD, and in steel at that.

Top

I'm running a BioPace triple on the Shogun I traded my Voyageur to SouthPawBoston for. Don't know if it was original to the Voyageur or not, but that's what was on it when I acquired it and I used it for the Shogun build. Heck, I'd never heard of BioPace before and thought I had a mucked up set of rings at the time! After asking around a bit, it became very clear that BioPace is a particularly polarizing topic: you either love 'em or hate 'em. I was warned that they would screw up my knees, and I was also told that they were the best possible set of rings for your knees. Whatever! At any rate, I figured I could yank 'em and replace 'em if I hated 'em, right? I just finished a 600+ mile tour on the Shogun and I've also put in an additional 1500 miles or so of long rides this spring, including eight or nine metric centuries or so. And here's the thing: I don't really notice any difference except in the granny gear (which has an odd-to-me cadence.) My knees are just fine, the rings look nice and function well. I'd keep them or sell them or use them: don't toss them, though.

I like them and have been using them on every bike I have owned for the last 18 years, they help my knees & I don't know if I could ride round rings anymore.

Glenn

They typically find their way in the trash for me as well... though I have a 52/40 combo right now, who wants to save it?

Works fine on my 1988 Cannondale SR500..

Interesting to watch the oval chainrings as I ride, any better? I can't tell.