Joined: Aug 2004
Posts: 2,784
Likes: 63
From: Prague, Czech Republic
Bikes: Time ADH01, Merlin Extra Light, Orbea Orca, Ritchey Outback,Tomac Revolver Mountain Bike, Cannondale Crit 3.0 now used for time trials.
I think that you are a great candidate for a visit to a quality local bike shop and let them work you through fitting issues. I am not sure about putting an 8 speed chain on your 7 speed drive train. Is this even an indexed shifting system?