wheel dish question - 6 to 7 speed freewheel change
10-22-10, 08:00 AM
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wheel dish question - 6 to 7 speed freewheel change
I'm thinking of changing to a Shimano 7 speed freewheel from the current 6 speed. Will this require a dish change for the wheel?
10-22-10, 09:02 AM
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Unless your current 6-speed is a Sun Tour Ultra-6 on a 120 mm hub, you won't have to change anything but the freewheel. As mentioned above both standard 6 and 7-speed freewheels use 126 mm spacing.
You will have to change your chain unless yours is already a 6/7/8-speed width. You should probably install a new chain anyway to avoid skipping problems with the new freewheel.
You will have to change your chain unless yours is already a 6/7/8-speed width. You should probably install a new chain anyway to avoid skipping problems with the new freewheel.
10-22-10, 09:49 AM
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Unless your current 6-speed is a Sun Tour Ultra-6 on a 120 mm hub, you won't have to change anything but the freewheel. As mentioned above both standard 6 and 7-speed freewheels use 126 mm spacing.
You will have to change your chain unless yours is already a 6/7/8-speed width. You should probably install a new chain anyway to avoid skipping problems with the new freewheel.
You will have to change your chain unless yours is already a 6/7/8-speed width. You should probably install a new chain anyway to avoid skipping problems with the new freewheel.
10-23-10, 06:33 AM
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Death fork? Naaaah!!
I've done 6-7 upgrades that were as easy as swapping out the freewheels. Others have required a complete re-space and re-dish. Most were in between.
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You know it's going to be a good day when the stem and seatpost come right out.
(looking for a picture and not seeing it? Thank the Photobucket fiasco.PM me and I'll link it up.)
10-23-10, 06:52 AM
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If you do find that you have to adjust the dish, make sure that you have a supply of new nipples before you start. On a wheel that old some of the nipples are going to be stubborn and will round off when you try to adjust them.
Good luck!
10-23-10, 01:20 PM
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When I upgraded a friend's bike from 6 to 7 freewheel I had to replace the axle with one slightly longer and had to redish the wheel some. I don't remember the frame but it was European and had good Campy components. I think the old freewheel was 12-17 and the chainrings were 52-42. Ouch!
