Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.hjbiker43
02-24-09, 10:15 PM
Just got a Shimano Dura Ace 7800 rear derailleur to replace my old fading Ultegra 6500. I plan to use the 7800 with what's left of my present Ultegra 9 spd system which still works great. Now the 7800 is advertised as being compatible with either 9 or 10 spd, but there are no instructions in the service manual on how to set it up for 9 spd. Any suggestions or instructions? Would appreciate any assistance. Thanks!