[FA] Record Triple 172.5 cranks

I wonder why the seller says that it must have a camp 111mm asymmetric
chorus or record BB.
I have a campag veloce chainset on a shim UN73 BB with no problem.

TerryJ

Quoted message said:

I wonder why the seller says that it must have a camp 111mm asymmetric
chorus or record BB.
I have a campag veloce chainset on a shim UN73 BB with no problem.

1. You shouldn't really use any Campags with a ShimaNO BB.
"Shimano and almost every major bottom bracket maker have
traditionally used the same spindle end cross section of 12.9 mm and two
degree taper. Campagnolo uses the same two degree taper but has a smaller
starting cross section of 12.7 mm. A Shimano crank arm will bottom out on
Campagnolo spindle. A Campagnolo crank arm will not draw far enough onto a
Shimano spindle."
- http://www.branfordbike.com/bottombr/bb2.html#item2
There's no good reason not to use a Mirage/Veloce/Centaur BB with
Veloce cranks. Quality is as good as UN73's and they're not expensive.

2. Current Record (and Chorus) Triple cranks are shaped differently from
Veloce's. They are designed specifically for an asymmetric BB. The only
BBs with the correct spindles (that I know of) are Chorus Triple and
Record Triple asymmetric 111mm.
Xenon/Mirage/Veloce/Centaur cranks are designed for 111 or 115.5mm
*symmetrical* Campag BB's.

~PB, http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=7134082913