Vintage Shimano Dura Ace BR-7403 Road Bike Brake Set Dual Pivot Pair Front/Rear | eBay
Dura Ace 7403 STi | John watson | Flickr
Shimano Dura Ace 7403 8 speed STI brake set NOW SOLD! | Retrobike
Looking for advice on a lever that's compatible with a Dura Ace 7403 front derailleur and crankset. My LBS tells me the lever is not working properly and they can't fix it. :