RE: [CR]Magistroni Sr. Cranks w/101 mm spacing


Example: Production Builders:Cinelli:Laser

From: "Ken Freeeman" <freesound@comcast.net>
To: <hsachs@alumni.rice.edu>, <rg500g@yahoo.com>, "'Classic Rendezvous'" <classicrendezvous@bikelist.org>
Subject: RE: [CR]Magistroni Sr. Cranks w/101 mm spacing
Date: Tue, 3 Jan 2006 23:48:29 -0500
Thread-Index: AcYQzjqnyi8pv7I/QliVY67KCzd5tAAGwhAg
In-Reply-To: <43BB247D.3070805@cox.net>


My old Magistroni (actually FB) had aluminum rings, with little adapter bars by Simplex to attach the 6-hole rings to the 3-pin spider.

I have seen Ebay photos of old Frejus's (Frejii?) that have close-spaced chainwheels and large cogsets. These would be half-step geared. A 52-36 in the front would lean toward an Alpine gear pattern. Wider range than a half-step but harder to shift. At least I always get lost in the things.

Ken (10 speeds doesn't seem like so many!!!) Freeman Ann Arbor, MI

-----Original Message----- From: classicrendezvous-bounces@bikelist.org [mailto:classicrendezvous-bounces@bikelist.org] On Behalf Of Harvey M Sachs Sent: Tuesday, January 03, 2006 8:27 PM To: rg500g@yahoo.com; Classic Rendezvous Subject: re: [CR]Magistroni Sr. Cranks w/101 mm spacing

The issue is not likely to be what the lowest inner would be for the Magistroni, but finding the hardware and combo to fit. I suspect the radius would allow a 36 or so, but finding the hardware ffor mounting a pair of rings... A commonly available (?) alternative is the aluminum chainring set from the 3-arm cotterless Campy (GS?), which has the identical BCD. A Magistroni ring lies right on top of my 3-arm Campy, and looks perfect -- but I did not disassemble.

But, if you don't want that Magistroni, and if it is in decent shape, I might be able to give it a good home... :-). Of course, you know that Italian bb spindles are a different diameter from the rest of the world, eh?

harvey sachs mcLean VA

I've seen a Magistroni Sr. crank for sale that may be period correct for my project, with 101 mm spacing. My question concerns the chainrings. What is the smallest permissible size for the low ring? I'm seeing a tooth gap of 3-5 teeth between low and high on these rings that are presented for sale and I'm asking myself what's the use? As much as I'm trying to get the right stuff back on the frameset I want something that will get up the hill. I'm never going to submit this bike for a concours review, and I intend on riding it regularly. My first impressions may be inappropriate, but I can't see the utility of a 3-5 tooth gap on the chainrings. If, on the other hand, a 40-42 tooth lower ring can be had for this 101 mm, 3 arm setup, then I'd be happy with the Magistroni, whether or not the chainrings were quite correct. If anyone knows of Magistroni Sr. cranksets with 40/50 ring sets or so I'd greatly appreciate a confirmation. Otherwise, I'll put as old a Record crank as I can find on the bike and say to myself that any sane person in 1958 would do the same once they saw Campagnolo's new crankset.

Scott Baxter
St. Louis, MO