Just fitted a SON to my Optima Stinger. Life is Goooood! I have a Shimano Nexus on the wedgie, but the SON is quite a bit better. It almost makes up for the drag from the Magura Julies (note to self: upgrade to Hope). I'm using the Busch & Muller Lumotec Oval until the SON E6 headlight arrives. The SON has much better optics.  Schmidt's Original Nabendynamo, a hub dynamo.  Alternator  Generator, to the USians, but that's not what it is Guy === ** WARNING ** This posting may contain traces of irony. http://www.chapmancentral.com (BT ADSL and dynamic DNS permitting) NOTE: BT Openworld have now blocked port 25 (without notice), so old mail addresses may no longer work. Apologies.