8spd freehub with 7spd cluster?
12-22-08, 03:41 PM
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8spd freehub with 7spd cluster?
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Last edited by dprayvd; 11-26-13 at 10:33 AM.
12-22-08, 03:45 PM
#2
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According to Sheldon, all you need to do is add a 4.5 mm spacer.
12-22-08, 04:57 PM
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No problem, any time I can pass along the wisdom of someone else, I'll do it! 
12-22-08, 05:54 PM
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Actually there's a bit more to it than that.
If you examine your cassette carefully you may find that it's held together with some small bolts or rivets that project out on the back side. The typical 4.5mm spacer will interfere with those. Remove the little bolts or grind off the rivet heads and, if necessary, install the cassette one cog at a time.
If you examine your cassette carefully you may find that it's held together with some small bolts or rivets that project out on the back side. The typical 4.5mm spacer will interfere with those. Remove the little bolts or grind off the rivet heads and, if necessary, install the cassette one cog at a time.
12-23-08, 02:59 AM
#7
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Spacer thickness- IOW no. My LBS sells the 4.5MM spacer for $2!
https://sheldonbrown.com/k7.html#spacing
I've taken an "E" & an "H" to make a semi corn cob.
13-14-15-16-18-21-24
Then I found an 8 speed FH body off a junk wheel and made eight 7 speed cogs fit by thinning the spacers- (don't use power tools)
13-14-15-16-17-19-21-24. Love it!
https://sheldonbrown.com/k7.html#spacing
I've taken an "E" & an "H" to make a semi corn cob.
13-14-15-16-18-21-24
Then I found an 8 speed FH body off a junk wheel and made eight 7 speed cogs fit by thinning the spacers- (don't use power tools)
13-14-15-16-17-19-21-24. Love it!
12-23-08, 08:00 AM
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Actually, Retro Grouch, I have already done that. I've a "modified" corncob upper 5 cogs:
12-14-15-16-18, then a 21 & 24. I lost the 28 and Dremel'd a 15 to align the ramps. The 15 is from a "M" cassette; the others from an "E."
If I get unlazy and decide to build an 8spd rig (I've a '93 Rockhopper lump waiting, but my current rig runs without problem), I'll add an 11, or perhaps a 13.
A question:
--Are the 7spd spacers the requisite 4.5mm I need? Or from something else?
12-14-15-16-18, then a 21 & 24. I lost the 28 and Dremel'd a 15 to align the ramps. The 15 is from a "M" cassette; the others from an "E."
If I get unlazy and decide to build an 8spd rig (I've a '93 Rockhopper lump waiting, but my current rig runs without problem), I'll add an 11, or perhaps a 13.
A question:
--Are the 7spd spacers the requisite 4.5mm I need? Or from something else?
Actually, if it was my bike, I think that I'd transplant the narrower 7-speed freehub body onto the new wheel. You'll have to redish the wheel, of course, but that'll make it stronger.
