Replace Chainrings on Biopace?

Yes, it will work fine.

Thanks!

Forgot to ask - is there a special spec for the front chainrings since this is a 7-speed? Or, will any Shimano 53/39 work?

Quoted post said:

Originally posted by Jesse Falsone
Thanks!

Forgot to ask - is there a special spec for the front chainrings since this is a 7-speed? Or, will any Shimano 53/39 work?

Go with an after market supplier and save some money.

Try Salsa or Stronglight. I used Salsa last year when I upgraded the drive train on an old Ultegra 600 (7 speed) and it works fine.

http://www.excelsports.com/new.asp?page=7&major=1&minor=12

Jesse Falsone said:

Forgot to ask - is there a special spec for the front
chainrings since this is a 7-speed? Or, will any Shimano
53/39 work?

Any 130 BCD chainrings will work, but my advice is to stick
with the Biopace rings unless they're badly worn. They're
nice, and they're easy on the knees!

See: sheldonbrown.combiopaceOpen ↗

Sheldon "Biopace" Brown +--------------------------------------------
+
| All the world's a stage and most of us | are desperately
| unrehearsed. | --Sean O'Casey |
+--------------------------------------------+ Harris
Cyclery, West Newton, Massachusetts Phone 617-244-9772 FAX
617-244-1041 harriscyclery.comharriscyclery.comOpen ↗ Hard-to-find parts
shipped Worldwide captainbike.comcaptainbike.comOpen ↗
sheldonbrown.comsheldonbrown.comOpen ↗

"Sheldon Brown" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Jesse Falsone said:

Forgot to ask - is there a special spec for the front
chainrings since this is a 7-speed? Or, will any Shimano
53/39 work?

Any 130 BCD chainrings will work, but my advice is to
stick with the Biopace rings unless they're badly worn.
They're nice, and they're easy on the knees!

For you maybe. I had an old bike with Biopace that I keep at
my in-laws house to ride when we visit. On the last visit my
knees were killing me within a couple of days. Changed out
the biopace rings for standard round ones and viola! No more
knee pain.

Cathy Boland said:

"Sheldon Brown" <[email hidden]> wrote in
message "]news:[email hidden]...

Quoted message said:

Jesse Falsone said:

Forgot to ask - is there a special spec for the front
chainrings since this is a 7-speed? Or, will any Shimano
53/39 work?

Any 130 BCD chainrings will work, but my advice is to
stick with the Biopace rings unless they're badly worn.
They're nice, and they're easy on the knees!

For you maybe. I had an old bike with Biopace that I
keep at my in-laws house to ride when we visit. On the
last visit my knees were killing me within a couple of
days. Changed out the biopace rings for standard round
ones and viola!

Your bike turned into a stringed instrument?

Greg

"G.T." <[email hidden]> wrote in message news:<[email hidden]>...

Quoted message said:

Cathy Boland said:

"Sheldon Brown" <[email hidden]> wrote in
message "]news:[email hidden]...

Quoted message said:

Jesse Falsone wrote:

>Forgot to ask - is there a special spec for the front
>chainrings since this is a 7-speed? Or, will any
>Shimano 53/39 work?

Any 130 BCD chainrings will work, but my advice is to
stick with the Biopace rings unless they're badly worn.
They're nice, and they're easy on the knees!

For you maybe. I had an old bike with Biopace that I
keep at my in-laws house to ride when we visit. On the
last visit my knees were killing me within a couple of
days. Changed out the biopace rings for standard round
ones and viola!

Your bike turned into a stringed instrument?

Greg

Dear Greg,

Probably not. It's actually an old joke, nicely phrased by
Cathy, intentionally or not.

It's also a good way to avoid hunting for that pesky
accented letter.

(If you think that spelling and punctuation are annoyingly
hard in English, try writing in one of the flyspeck
languages.)

Voilà!

Carl Fogel

Carl Fogel said:

"G.T." <[email hidden]> wrote in message
news:<[email hidden]>...

Quoted message said:

Cathy Boland said:

"Sheldon Brown" <[email hidden]> wrote in
message "]news:[email hidden]...

>Jesse Falsone wrote:
>
>
>
>>Forgot to ask - is there a special spec for the front
>>chainrings since this is a 7-speed? Or, will any
>>Shimano 53/39 work?
>
>Any 130 BCD chainrings will work, but my advice is to
>stick with the Biopace rings unless they're badly worn.
>They're nice, and they're easy on the knees!
>

For you maybe. I had an old bike with Biopace that I
keep at my in-laws house to ride when we visit. On the
last visit my knees were killing me within a couple of
days. Changed out the biopace rings for standard round
ones and viola!

Your bike turned into a stringed instrument?

Greg

Dear Greg,

Probably not. It's actually an old joke, nicely phrased by
Cathy, intentionally or not.

It's also a good way to avoid hunting for that pesky
accented letter.

(If you think that spelling and punctuation are annoyingly
hard in English, try writing in one of the flyspeck
languages.)

Voilà!

Voila! looks fine to me. I don't need no stinking accents to
read, only to pronounce. Even the ignorant walla works for
me. But viola?

Greg

Jesse Falsone said:

Last year a friend gave me his Trek 660 as an enticement
to get into riding. Well, it worked and I now own a very
nice custom steel bike. I've upgraded some parts on the
660, and I'm now in the middle of a rebuild so that the
bike can be passed on to another sucker. I want to
complete the rebuild on the cheap, so I'm only doing what
is absolutely necessary or what can be done for very
little money. I've had to replace a worn BB and cassette
so far, but all the other components are just fine after a
thorough cleaning and inspection. An experienced friend of
mine told me to dump the Biopace, although I never had any
complaints with it. My question is if I choose to do this,
can I use the same Shimano 600 cranks with standard 53-39
chainrings? If I have to replace the cranks too, I'll
leave the Biopace on.

Standard 130mm rings fit fine but you might just tell the
prospective buyer that. Some riders prefer BioPace. And you
can't necessarily mark the bike up the amount you spend on
two new rings.

--
Andrew Muzi www.yellowjersey.org Open every day since 1
April, 1971

Jesse Falsone said:

Thanks!

Forgot to ask - is there a special spec for the front
chainrings since this is a 7-speed? Or, will any Shimano
53/39 work?

--

Any will work but older (six, seven) cost less.

--
Andrew Muzi www.yellowjersey.org Open every day since 1
April, 1971