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Shimano road vs mtb compatibility(4 posts)

Shimano road vs mtb compatibilityniklas
Oct 8, 2001 8:26 AM
I have a Bianchi Axis cyclocross bike with a xt rear derailleur. I plan on getting another wheelset and my concern is will the derailleur handle a road cassette? Are the steps the same (width) between the current 11-32mtb rear cassette and a road cassette? Thanks in advance!
re: Shimano road vs mtb compatibilitydavet
Oct 8, 2001 8:59 AM
Assuming the same number of cogs (8sp or 9 sp), the rear der can operate fine with a road cassette. A slight amount of 'tuning' may have to be done on the rear der.
re: Shimano road vs mtb compatibilityRusty Coggs
Oct 8, 2001 4:51 PM
Actually the derailer doesn't know or care how many cogs there are.The Shimano mtb cog spacing is the same as road spacing,within the same speeds.All mtb rear derailers are compatible with all shimano index shifters with the exception of pre 9 speed Dura Ace shifters which must be used with pre 9 speed DA rear derailers.If he puts an 8 speed cassete on a 8/9 speed hub,and uses 9 speed shifters, it won't shift,but that's because of the shifter, not the derailer.
re: Shimano road vs mtb compatibilityniklas
Oct 9, 2001 5:48 AM
Thanks for your input! Nice to get answers swiftly and accurately.