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California98Civic · 03-18-2018, 11:15 PM

Of course, bike tires are maybe not fully comparable to cars, but I love the chart and I take your point. I have a 23mm Gatorskin on my back wheel right now, but that is the widest tire that fits in the frame (1990s Nashbar design).

The link Capriracer posted a page or so back had this chart buried in it. You'll notice that generally smaller tire size is associated with lower RR:

james

03-18-2018, 11:15 PM	#35 (permalink)
California98Civic Cyborg ECU Join Date: Mar 2011 Location: Coastal Southern California Posts: 6,299 Black and Green - '98 Honda Civic DX Coupe Team Honda 90 day: 66.42 mpg (US) Black and Red - '00 Nashbar Custom built eBike 90 day: 3671.43 mpg (US) Thanks: 2,373 Thanked 2,174 Times in 1,470 Posts	Of course, bike tires are maybe not fully comparable to cars, but I love the chart and I take your point. I have a 23mm Gatorskin on my back wheel right now, but that is the widest tire that fits in the frame (1990s Nashbar design). The link Capriracer posted a page or so back had this chart buried in it. You'll notice that generally smaller tire size is associated with lower RR: james Attached Thumbnails __________________ See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.