Join Date: Sep 2007
Location: Base of the Rocky Mountains, Canada. Wonderous things!
Bikes: 2010 Cannondale Hooligan 3
The Vitesse D7 has a Neos which is a joint production with Suntour. It isn't a particularly accurate or quiet derailleur, but it isn't the worst. If you want to change derailleurs, you will need to get a derailleur hanger for your Vitesse (unless you already have one), as the Neos doesn't mount on a hanger, it mounts on your chainstay.
One thing that made quite a bit of noise on my Speed D7 was the plastic tooth that keeps the chain from falling inwards. It was rubbing the chain constantly initially and backing it off just a tiny bit helped, i'd check that piece too. My experience with the Speed / Vitesee D7 is that it simply isn't a very quiet bike - the hubs aren't very quiet, the chain tooth can whirr against the chain, and the Neos clicks and clanks - but the bike itself still works quite well.
Last edited by Abneycat; 04-09-09 at 01:37 PM.