Sheldon has a chart showing the various cassette cog & spacer thicknesses:
http://sheldonbrown.com/k7.html#transplant Notice how the variations appear quite small but when you stack up enough of them, it can make a difference. There's also a good discussion of freehub body transplants, etc. Not sure if there's a similar chart for freewheels but Harris is the best source I know of for research. dougP -----Original Message----- From: rbw-owners-bunch@googlegroups.com [mailto:[EMAIL PROTECTED] On Behalf Of tallsteelbikes Sent: Wednesday, December 03, 2008 11:26 AM To: RBW Owners Bunch Subject: [RBW] Re: cassettes vs freewheels The cog spacing got tighter when they went from 6 to 7 not from 7 to 8 speed. That is why you need a spacer with the 7 speed cassette on the 8 speed hub. When they went from 8 to 9 they made the cog spacing even tighter. That is why 8 and 9 speed use the same hub body. So if you want a stronger wheel with less dish go with 7 speeds or less on a 7 speed freehub cassette system or a 5/6/7 speed freewheel system. Who really needs or wants 8/9/10 speeds and weaker wheels with more cost and maintenance anyway? Only reason is if you are stuck on STI or just need the latest gadgets to keep up with the Jones'. Cheers, Chris tallsteelbikes.googlepages.com --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en -~----------~----~----~----~------~----~------~--~---