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02-22-07, 05:04 PM
I decided that I would try SIS shifting on my older Road Bike.
I replaced the 6 speed FW with a 7 speed FW 12-28, got a set of downtube 7 speed shimano SIS shifters on E-bay. I took a fairly new SORA derailer off of another bike (the Sora was not rated for a 32 tooth FW anyway)
I can get the low to high shifting to work fine but cannot get the high to low to index properly. It takes two clicks to get off the 28T. If I adjust for high to low it wont shift up on the first click and clatters.
The Chain is the same one. The 6 speed suntour had a 28 tooth high gear.
Could it be the Chain?
I replaced the 6 speed FW with a 7 speed FW 12-28, got a set of downtube 7 speed shimano SIS shifters on E-bay. I took a fairly new SORA derailer off of another bike (the Sora was not rated for a 32 tooth FW anyway)
I can get the low to high shifting to work fine but cannot get the high to low to index properly. It takes two clicks to get off the 28T. If I adjust for high to low it wont shift up on the first click and clatters.
The Chain is the same one. The 6 speed suntour had a 28 tooth high gear.
Could it be the Chain?