Q&D wrote:zef wrote:
Vill du ta kurvor i 40 km/h på den där?
Gör hjuldiametern någon skillnad ?
Några saker jag hittade:
1. Först Några ord från Jobst Brandt:
"A larger wheel rides better on average roads and always corners better
because it brings a longer contact patch to the road. A longer contact
averages traction over more pavement and avoids slip outs for lack of
local traction. Visualize crossing a one inch wide glossy paint stripe
with a 27" wheel and an 18" wheel when banked over in a wet turn."
https://groups.google.com/forum/#!msg/r ... ROn27YOIYJ
2. "Taken to an extreme, really small wheels would confer a significant inertia advantage, but would require either very large chainrings or compound gearing to maintain the net drive ratio. There would be other disadvantages as well, ride quality, stability, for instance.."
http://www.bikeforums.net/classic-vinta ... heels.html
3. "The wheel size on the bike used to set the world speed record on an upright bike was 18 inches. Small wheels usually require fewer spokes to achieve the same stability as the common 26 to 28 inch wheels, and fewer spokes generate less turbulence drag than larger wheels, leading to higher speeds. As pointed out by Alexi Grewal, 1984 Olympic road race gold medalist, a small wheel is more efficient than a large wheel in speeds up to 16 mph. In speeds between 16 and 33 mph, small and large wheels are equally efficient. Only in speeds faster than 33 mph is a large wheel preferable, Grewal says."
http://www.livestrong.com/article/14202 ... s-bicycle/