[CR]Replacement NR/SR chainrings


Example: Framebuilders:Alberto Masi
From: "Andrew Gillis" <apgmaa@earthlink.net>
To: <classicrendezvous@bikelist.org>
References: <200308060623.h766NQ5L028951@newcastle.cs.ubc.ca> <3F30A3F7.98C78CFC@earthlink.net>
Date: Wed, 6 Aug 2003 00:59:47 -0700
Subject: [CR]Replacement NR/SR chainrings

CRs:

I've been using the TA chainrings (chainwheels) in the SuperRecord 144 style and I find them to be of excellent quality. Their special tooth profile seems to make the chain run smoother and quieter. A 41 tooth is readily available as well.

I've usually replaced NR/SR chainrings every two to three years, and chains and freewheels/ cassettes every year. The 9 speed stuff wears a bit faster, so new chainrings every two years seem to be a necessity.

I'm not so fond of the TA rings for Campy 9 speed, only because a select few teeth on the 52/53 rings are cut to 1/2 height. This design gives an easy downshift under pressure, but it makes the chain easy to inadvertently downshift when back-pedaling (at a stoplight) with an angled chain alignment.

This altered TA tooth profile is not on the 144 mm chainrings. No pick up pins or altered teeth on the retro-compatible, just the classic plain and simple necessities.

Support your aftermarket manufacturer, while you still can!

Andrew Gillis (Long Beach, CA)