Dura Ace Cranks 7703 & 7701

Daniel Anderson said:

I just got some cranks off of e-bay, and the vendor sent
the 7703 (with three chain rings) instead of the 7701
(with only two). Can I just remove the 30 ring and forge
on ahead, or is there a substantial difference that would
make it necessary to exchange for the 7701?

Yes, you can just remove the 30 and run it as a double.

Sheldon "Easy One" Brown
-------------------------------------------------
I was on vacation, traveling in France and England
throughout most of the month of June.

Due to the SPAM and Virus problem, I typically get about
4,000 emails daily. Usually my filters are able to deal with
the flood, but while I was overseas, I wasn't able to get
Internet access as often as I would have liked.

As a result, my mailbox got choked up on two occasions,
causing the loss of about 190 mb of mail (tens of thousands
of messages) each time.

If you mailed me and didn't get an answer, please re-send
your message.

All the best,

Sheldon 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 ↗

In article <[email hidden]>,
[email hidden] says...

Quoted message said:

Daniel Anderson said:

I just got some cranks off of e-bay, and the vendor sent
the 7703 (with three chain rings) instead of the 7701
(with only two). Can I just remove the 30 ring and forge
on ahead, or is there a substantial difference that would
make it necessary to exchange for the 7701?

Yes, you can just remove the 30 and run it as a double.

I'm curious, would you need the double or triple BB?
---------------
Alex

Daniel Anderson said:

I just got some cranks off of e-bay

You need to scan your PC for the presence of malware
immediately.

Michael J. Klein [email hidden] Dasi Jen, Taoyuan
Hsien, Taiwan, ROC Please replace mousepotato with
asiancastings
---------------------------------------------

Daniel Anderson said:

Quoted message said:

Quoted message said:

I just got some cranks off of e-bay, and the vendor sent
the 7703 (with three chain rings) instead of the 7701
(with only two). Can I just remove the 30 ring and forge
on ahead, or is there a substantial difference that would
make it necessary to exchange for the 7701?

I replied:

Quoted message said:

Quoted message said:

Yes, you can just remove the 30 and run it as a double.

Alex Rodriguez asked:

Quoted message said:

I'm curious, would you need the double or triple BB?

Chainline would be better with the 109 mm ("double"😉

Sheldon "sheldonbrown.comchainlineOpen ↗" Brown +-------------------------------------
+
| Natural laws have no pity. | --Robert A. Heinlein |
+-------------------------------------+ 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 ↗

In article <[email hidden]>,

Daniel Anderson said:

I just got some cranks off of e-bay, and the vendor sent
the 7703 (with three chain rings) instead of the 7701 (with
only two). Can I just remove the 30 ring and forge on
ahead, or is there a substantial difference that would make
it necessary to exchange for the 7701?

Lucky you! Supergo sells the 7701 for $199.98, the 7703 is
$249.98, Colorado Cyclists is $199.99 vs $299.99. Nashbar
has the 7701 for $189. That 30 tooth ring sure is
expensive, isn't it?

Sell your 7703 before you use it and buy a 7701, then pocket
the $50 to $110 difference.