RE: [CR]seatpost mods to Campagnolo NR seatposts.....

(Example: Framebuilders:Brian Baylis)

From: "Mark Bulgier" <mark@bulgier.net>
To: 'Wayne Davidson' <wayne.collect@xtra.co.nz>, CR BIKE LIST <classicrendezvous@bikelist.org>
Subject: RE: [CR]seatpost mods to Campagnolo NR seatposts.....
Date: Sun, 19 Jan 2003 15:13:24 -0800


Wayne Davidson wrote;
> Hi all, have any of you altered a Campagnolo NR seatpost the
> same way SR SAKAE altered there similar seatpost to SL specs?
> SR put a big slice thru the head lengthways to make it a
> wishbone instead of a solid lump of alloy.

Campy's first seatposts were done that way - way before Sakae Ringyo. See: http://bulgier.net/pics/bike/Campy/SteelSeatpost-50s-under.jpg

This seatpost was steel though, so doing it in aluminum might be dicey strength-wise. I didn't hear of any of the Japanese SLs breaking, but they weren't common, so I might not have heard of it even if they did break. Try to leave rounded transitions (fillets) rather than sharp corners if you do it, and polish out any machining/filing marks - standard anti-fatigue advice for any part that'll see cyclical loads

Mark Bulgier
Seattle, Wa
USA