NYC - Gear Combination
06-06-06 | 08:56 AM
#26
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Joined: Aug 2005
Posts: 12,769
Likes: 38
From: Rocket City, No'ala
Bikes: 2014 Trek Domane 5.2, 1985 Pinarello Treviso, 1990 Gardin Shred, 2006 Bianchi San Jose
Originally Posted by number18
um, what are those tables supposed to indicate? what is a "skid patch" and how are the numbers on the first table figured?
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06-06-06 | 09:08 AM
#27
crown heights sucka
Joined: May 2006
Posts: 352
Likes: 0
From: brooklyn!
Bikes: pake
Originally Posted by bbattle
The horizontal number is your chainring and the vertical one is your cog. A skid patch is the spot on your rear tire that will be touching the pavement when you skid. Because the rear wheel turns when the cranks turn, the wheel stops spinning when you apply back pressure on the pedals to brake. As the cranks go around, the wheel goes around in a ratio determined by your gearing. Certain ratios have the same patch of tire hitting the ground when the cranks are in the 9 o'clock/3 o'clock positions; your braking position. After so many skids, you'll wear a tire out so the more skid patches you have, the longer the tire will last.
06-06-06 | 09:34 AM
#28
Gone, but not forgotten
Joined: Jul 2002
Posts: 2,301
Likes: 12
From: Newtonville, Massachusetts
Bikes: See: https://sheldonbrown.org/bicycles
Originally Posted by number18
um, what are those tables supposed to indicate? what is a "skid patch" and how are the numbers on the first table figured?
Sheldon "Skidding Wastes Tires" Brown
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+-----------------------------------+ | Habit is the nursery of errors. | | --Victor Hugo | +-----------------------------------+
