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Bill Baer · 03-21-2011, 11:26 AM

Well Joe 29.5" tire rolls 5.3% more per revolution than does the 28" so it should drop your RPM ~5.3% (6440 vs. 6800).The 4:56 is 10.9% more gear than the 4.11 which should have you spinning about 7140 with the 29" tire.
However if you can get something close to a 4:33 gear ( a 4:11 +5.3%) it should be right back @ ~6800

03-21-2011, 11:26 AM	#2
Bill Baer Senior Member Join Date: Jul 2007 Location: Nothern IL Posts: 596 Likes: 1 Liked 1 Time in 1 Post	Re: changing tire size Well Joe 29.5" tire rolls 5.3% more per revolution than does the 28" so it should drop your RPM ~5.3% (6440 vs. 6800).The 4:56 is 10.9% more gear than the 4.11 which should have you spinning about 7140 with the 29" tire. However if you can get something close to a 4:33 gear ( a 4:11 +5.3%) it should be right back @ ~6800 __________________ Bill Baer 3391 SC, 339B SC, QR Last edited by Bill Baer; 03-21-2011 at 11:39 AM.