Oh, a funny by-the-way: when I swapped out the Mavic SSC wheelset that was in the bike (display) it was spaced for six speeds but wearing a 5-speed freewheel. Why? The Alpina has always been fitted with a Portacatena system - drilliumed, even. Until yesterday. When I swapped in the Super Champion Arc en Ciel I wanted to leave the spacing alone - and use a 6-speed freewheel. Removed the chain rest from the rear DO but left the gear lever. So get this: now, when I want to go to my top gear, I have to depress the button before I shift - it's like having to hit the NOS (Nitrous Oxide System - not New Old Stock) button for that extra burst of speed

It's a 12t, so no worries - I won't be in it much.

DD