11-speed (recommended sprocket ratio: 1.8 to 2.0)
FC-S501 number of teeth
45
42
39
SM-GEAR
14
-
-
-
15
-
-
-
16
-
-
-
17
-
-
-
18
-
-
-
19
-
-
-
20
-
-
X
21
-
X
X
22
-
X
-
23
X
X
-
CS-S500
18
-
-
-
20
-
-
-
8-speed (recommended sprocket ratio: 2.0 to 2.25)
FC-S501 number of teeth
45
42
39
SM-GEAR
14
-
-
-
15
-
-
-
16
-
-
-
17
-
-
-
18
-
-
X
19
-
X
X
20
X
X
-
21
X
X
-
22
X
-
-
23
-
-
-
CS-S500
18
-
-
X
20
X
X
-
5-speed (recommended sprocket ratio: 1.3 to 1.5)
The following chainring and sprocket settings are recommended.
TO ENSURE SAFETY
11