hotch
02-22-03, 05:52 PM
I have a Trek 1100 in perfect condition that came with shifters on the down tube. I wonder what type of agony and cost would be involved with converting it to STI shifters?
Bicycle Mechanics - Switching to STI shifters
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.View Full Version : Switching to STI shifters
pokey
02-22-03, 06:17 PM
How many speeds on the rear, and what is the rear dropout spacing?
hotch
02-22-03, 07:07 PM
7 on the rear, triple on the front, der are shimano rx100
pokey
02-22-03, 07:53 PM
Originally posted by hotch
7 on the rear, triple on the front, der are shimano rx100 You can look for rsx7 speed STI which shift either a double or triple up front, or you could use a RSX,, RX100 or 105 triple 8 speed shimano STI ,to shift the 7 speeed even though the cog spacing isn't exactly the same. but good luck finding them new and I wouldn't waste my time on used.A 9 speed rear hub for using 9 speed STI requires 130mm dropout spacing and yours may be 126,but you need to measure.Aluminum doesn't like to be bent.You can use 9 speed sti with your hub by getting a 9 speed cassette,removing a cog and a spacer so it fits the hub and use a 9 speed sti shifter to shift the remaining 8 cog.Use a 9 speed chain.You may also need a STI compatible front derailer,but your rear will work.
7 on the rear, triple on the front, der are shimano rx100 You can look for rsx7 speed STI which shift either a double or triple up front, or you could use a RSX,, RX100 or 105 triple 8 speed shimano STI ,to shift the 7 speeed even though the cog spacing isn't exactly the same. but good luck finding them new and I wouldn't waste my time on used.A 9 speed rear hub for using 9 speed STI requires 130mm dropout spacing and yours may be 126,but you need to measure.Aluminum doesn't like to be bent.You can use 9 speed sti with your hub by getting a 9 speed cassette,removing a cog and a spacer so it fits the hub and use a 9 speed sti shifter to shift the remaining 8 cog.Use a 9 speed chain.You may also need a STI compatible front derailer,but your rear will work.