Bike Forums - View Single Post - Cranksets: DA vs Record/PW.

11-07-12 | 01:47 AM

#25

carleton

Elitist

Joined: Jul 2005

Posts: 15,966

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From: Atlanta, GA

Quote:

Originally Posted by Nagrom_

They aren't. It's some odd cup and cone thing with needle bearings. They might be "sealed" with an O ring, but its definitely misleading.

A 7710 is just a 7700 with an NJS stamp.
http://bike.shimano.com/media/techdo...9830610606.pdf

http://bike.shimano.com/media/techdo...9830646804.pdf

7700 has needle bearings.
7710 has sealed bearings.

I've owned both.

Here is the correct techdoc for BB7710: http://techdocs.shimano.com/media/techdocs/content/cycle/EV/bikecomponents/BB/EV-BB-7710-1786B_v1_m56577569830728740.pdf

Last edited by carleton; 11-07-12 at 01:53 AM.

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