Chainring Cog
min:
max:
How many Skid Patches will I have for each gear?
 Ring Cog  34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 Ring   Cog
11 11 11 11 11 11 11 11 11 11 11 1 11 11 11 11 11 11 11 11 11 11 11
12 6 12 1 12 6 4 3 12 2 12 3 4 6 12 1 12 6 4 3 12 2 12
13 13 13 13 13 13 1 13 13 13 13 13 13 13 13 13 13 13 13 1 13 13 13
14 7 2 7 14 7 14 7 14 1 14 7 14 7 14 7 2 7 14 7 14 7 14
15 15 3 5 15 15 5 3 15 5 15 15 1 15 15 5 15 3 5 15 15 5 15
16 8 16 4 16 8 16 2 16 8 16 4 16 8 16 1 16 8 16 4 16 8 16
17 1 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 1 17 17 17 17
18 9 18 1 18 9 6 9 18 3 18 9 2 9 18 3 18 9 6 9 18 1 18
19 19 19 19 19 1 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19
20 10 4 5 20 10 20 1 20 10 20 5 4 10 20 5 20 2 20 5 20 10 20
21 21 3 7 21 21 7 21 21 1 21 21 7 21 21 7 3 21 7 21 21 7 21
Green is good, blue okay, avoid red.
Still can't decide? Check out the recommendations on the Skid Patch Math page.