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View Full Version : WTB: BIOPACE Chainrings 50-44-28


Not the Slowest
10-05-2012, 11:54 AM
Yup, I am looking for Biopace Chainrings for my Commuter /Brevet bike.
Half-step gearing makes this work and really want the 50 & 44 , but will take the 28 with the others.

Yes I know I can swap this out for a standard triple but with the Half-step and 7 gears the jumps are pretty nice. For whatever reason, climbing is a bit easier for me on the Biopace.

Let me know what you have and only Chainrings in VERY GOOD Condition please.
OH YEAH, Trying NOT looking to break the bank on this, so please be kind.

Thanks

Robert

fiamme red
10-05-2012, 11:59 AM
You might also try a search for Biopace on eBay. You can often find entire cranksets going cheap.

Here are 50/44/28 rings:

http://www.ebay.com/itm/Shimano-Bio-Pace-Triple-50-44-28T-Half-Step-Touring-Vintage-Trek-520-Miyata-ATB-/251160261311?pt=Cycling_Parts_Accessories&hash=item3a7a5172bf

Not the Slowest
10-05-2012, 12:03 PM
Thanks, I saw that and will be making an offer.
Last week I missed a set for $19.99.

Robert

Not the Slowest
10-10-2012, 11:18 AM
Ebay set sold from under me.

fiamme red
10-10-2012, 12:35 PM
Consider buying individual rings on eBay. A 48t ring makes more sense than a 50t, since 48/44/28 would be closer to a true mathematical half-step than a 50/44/28.

Not the Slowest
10-10-2012, 12:39 PM
Consider buying individual rings on eBay. A 48t ring makes more sense than a 50t, since 48/44/28 would be closer to a true mathematical half-step than a 50/44/28.

Agreed, but the 44 is the tougher find and most used.
Prefer not to break the bank on this but am keep my eyes open.

Robert

fiamme red
10-10-2012, 12:55 PM
A 46/42/28 (with a 12-28 freewheel) would work nicely too.

Not the Slowest
10-10-2012, 01:02 PM
I am running a 12-28 and that works fine.
One wheel I have is a freewheel, the other is a Open Pro with same casette and spacers.

LouDeeter
10-10-2012, 05:19 PM
I have used 46 and 42 you can have for $10 shipped.

Not the Slowest
10-10-2012, 05:29 PM
Lou, Thanks that's a very generous offer. I need to crunch the gearing tonite to see what I am losing at the top. Obviously most of my riding is in the top-middle and I am more of a gear cruncher than a spinner. Maybe this is a good way to save my knees some future ache.

I have used 46 and 42 you can have for $10 shipped.

Robert

fiamme red
10-10-2012, 05:33 PM
Lou, Thanks that's a very generous offer. I need to crunch the gearing tonite to see what I am losing at the top. Obviously most of my riding is in the top-middle and I am more of a gear cruncher than a spinner. Maybe this is a good way to save my knees some future ache.You shouldn't need a gear higher than 46/12 on a brevet/commuter bike.

Not the Slowest
10-10-2012, 05:47 PM
You shouldn't need a gear higher than 46/12 on a brevet/commuter bike.

On brevet's No.

My commute is 44 miles RT unless I do Laps in Central Park which means another 12 or so. So most times, no.

I just need to get used to using a few more gear combinations,that's all.

The bike proves to be a good foul weather Sunday group ride. Of course who doesn't want to ride behind the guy with the fenders when the rain starts.

fiamme red
10-10-2012, 05:51 PM
On brevet's No.

My commute is 44 miles RT unless I do Laps in Central Park which means another 12 or so. So most times, no.

I just need to get used to using a few more gear combinations,that's all.Well, maybe you might want a higher gear if you race other commuters (alias, "cat. 6 racing"). ;)

Even on club rides, those very high gears are seldom useful.

Not the Slowest
10-10-2012, 05:56 PM
Well, maybe you might want a higher gear if you race other commuters (alias, "cat. 6 racing"). ;)

Even on club rides, those very high gears are seldom useful.

LOL, that's true.
Hey it's Noo Yawk..it's a tough town.

You are right, but I need to get my bike and head home.

I'll end up squaring it all with Lou later.

Thanks

Rob