Shimano 6 speed SIS shifter with Shimano 7 speed freewheel?
It's time to put a new freewheel onto my '96 Diamondback MTB which currently has a 6 speed freewheel & SIS derailler & indexed shifter. I like the Shimano 7 speed freewheel (Megarange/Alpine 14-34) which I put on my Raleigh friction shifting road bike. My question is: Is a 6-speed Shimano index shifter & derailler compatible with a Shimano 7 speed hyperglide freewheel?
I have searched for the answer everywhere but didn't find this specific combo... Thanks, all!
DRF aka Thrifty Bill
You will have to replace the shifter to match. Why not stick with six speed? I assume you have twist grip or trigger shifter, so switching it to friction is not an option.
Shifter and freewheel need to match.
Shimano also makes a six speed Megarange. Someone sells them on ebay for $10, might find a better deal elsewhere. Depending what is currently on your bike, you probably need a new chain and perhaps a new RD. It really depends which model derailleur do you have? Shimano makes a lot of models.
Last edited by wrk101; 07-12-10 at 11:04 AM.
Friction shifting mode available? , that will resolve the compatibility issue.
Gap between cogs is narrower so 7 could fit in 126 wide 6 speed frames .
IRD also makes 6 speed freewheels wont have the 24 to 34 T jump , which I dislike
I Have used the 28t #5 of 6 cog a lot , and would miss its ratio combination if its not there..
Last edited by fietsbob; 07-12-10 at 11:23 AM.