Re: [CR] Campy NR Headset & Brinelling

(Example: Framebuilders:Masi)

Date: Mon, 23 Nov 2009 00:05:04 -0500
From: Marcus Coles <marcoles@ody.ca>
To: CLASSIC RENDEZVOUS <classicrendezvous@bikelist.org>
References: <SNT107-W289548703935AA1E218C4CB09E0@phx.gbl>
In-Reply-To:
Subject: Re: [CR] Campy NR Headset & Brinelling


jeff holt wrote:
> Need some CR advice....
> Made the "mistake" of installing an Campy NR headset using the ball bearing retainer v. loose balls when I re-assembled my Cinelli this summer. The result, brinelling (a/k/a indexed steering).
> I've received some conflicting advice:
> Option A) Simply replacing the ball bearing retainer with loose balls can eliminate the problem. Option B) Replace the entire headset as the only way to eliminate the problem.
> Option C) Leave it alone & ride the bike. (This option seems plausible, as when I actually ride, I don't notice a problem.)
> Thoughts & Opinions?
> Jeff Holt
> West Deptford, NJ
> USA
>
> I would go with Option A) too, even if it doesn't work and I'm pretty sure it will, all it costs is bearing balls, grease and a little time. Another trick you might try in addition to Option A) is rotating the cups 1/4 turn, take a close look at them, in my experience the biggest indentations are usually at the front and rear so rotating them puts the big divots to the side where they get less loading.

Marcus Coles
London, Ontario, Canada