Re: [CR]Bullseye Pulleys/was Replacement Pulleys for NR?


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Date: Fri, 23 Apr 2004 06:20:42 -0700
To: "Eric Elman" <tr4play@cox.net>, classicrendezvous@bikelist.org
From: "Jan Heine" <heine93@earthlink.net>
Subject: Re: [CR]Bullseye Pulleys/was Replacement Pulleys for NR?


Eric,

Sorry, I should have been more clear: Yes, with one washer on each side, Bullseye pulleys do work, but the distance between cage plates is less than with Campagnolo pulleys. This may be a good thing or a bad thing, but it's different from what Campagnolo intended.

What about using older Shimano et al. pulleys, which appear to be the same diameter/thickness as Campy? Are those easily available? I am talking about user bikes - for a collectible bike that gets ridden a few hundred miles a year in nice weather, the pulleys shouldn't wear out all that fast! -- Jan Heine, Seattle Editor/Publisher Vintage Bicycle Quarterly http://www.mindspring.com/~heine/bikesite/bikesite/

Jan,

If I understand your email correctly, my experieance is been different then yours.

I am currently using two Campagnolo rear derailleurs (NR Pat 75 and SR 1st gen Pat 73) with these pulleys and the original washers - one washer on either side of each pulley. The washers are plenty thick enough and I have no problems running a Regina cheapo (all black but otherwise like the Oro) and a Regina Oro chain on the other. I know the washers from one set is original as I took the whole set-up up from its sealed bag. I still have another NOS sealed set and the washers appear the same too. Interestingly, the washers are not metric while the bearings are.

I do agree that the aluminum pulleys are noisy and wear faster then the plastic factory units.

Eric "confused, am I to thick?" Elman Somers, CT


----- Original Message -----
From: Jan Heine
To: classicrendezvous@bikelist.org
Sent: Thursday, April 22, 2004 8:01 PM
Subject: Re: [CR]Bullseye Pulleys/was Replacement Pulleys for NR?


Ahh, but the Bullseye washers were too thin when using 2, and too thick when using all 4 (2 per side). When using a 7/8 speed chain, you could use 2 (1 per side), but the NR/SR bolt heads would protrude a bit. I guess it wasn't only standard bearings, but also standard washers. The obvious solution is machining custom washers...

Also, the aluminum pulleys are noisy, plus they wear faster than plastic. Still, I raced with them for many years with good results. Not a single race I did not finish due to pulley failure ;-) -- Jan Heine, Seattle Editor/Publisher Vintage Bicycle Quarterly http://www.mindspring.com/~heine/bikesite/bikesite/