OEM 15 LINK WIDE UPPER SPROCKETS

Number of Teeth
P/N
18

19
20
23
24

OEM 15 LINK WIDE CHAINS

PITCH
P/N
68
70
72
74

OEM 13 LINK WIDE LOWER SPROCKETS

Number of Teeth
P/N
43

OEM 13 LINK WIDE CHAINS

PITCH
P/N
68
70
72

OEM 13 LINK WIDE UPPER SPROCKETS

Number of Teeth
P/N
18
19

AC-0602-444

19*

AC-0602-470

20AC-0602-456
21AC-0602-494
22AC-0602-455
23AC-0602-452
24AC-0602-446

OEM 13 LINK WIDE LOWER SPROCKETS

PITCH
P/N
35
39
39*AC-0702-170
40
40*

AC-0702-187


42AC-0602-909
44AC-0602-812
44*AC-0602-813
* Reverse and 2 Speed Sprocket
CHAIN CASE PERFORMANCE SPECIFICATIONS
SprocketsRatioChain PitchMPH=0.0192 x RPM x Ratio MPR/rpm (Engine)
600070008000900010,000
24/35
.686
70
79.0
92.2
105.4
118.5
131.7
22/33
.667
68
76.8
89.6
102.5
115.3
128.1
21/33
.636
68
73.3
85.5
97.7
109.9
122.1
24/39
.615
72
70.8
82.7
94.5
106.3
118.1
22/37
.595
70
68.5
80.8
91.4
102.8
114.2
23/40
.575
72
66.2
77.3
88.3
99.4
110.4
20/35
.571
68
65.8
76.7
87.7
98.7
109.6
21/37
.568
70
65.4
76.3
87.2
98.2
109.1
22/40
.550
72
63.3
73.9
84.5
95.0
105.6
19/35
.543
68
62.6
73.0
83.4
93.8
104.3
22/41
.536
72
61.7
72.0
82.3
92.6
102.9
20/39
.513
70
59.1
68.9
78.8
88.6
98.5
21/41
.512
72
59.0
68.8
78.6
88.4
98.3
21/42
.500
72
57.6
67.2
76.8
86.4
96.0
20/41
.488
72
56.2
65.6
75.0
84.3
93.7
19/39
.487
70
56.1
65.5
74.8
84.2
93.5
18/37
.486
68
56.0
65.3
74.6
84.0
93.3
16/33
.484
66
55.8
65.0
74.3
83.6
92.9
19/40
.475
70
54.0
63.0
72.0
81.2
90.0
20/43
.465
72
53.6
62.5
71.42
80.4
89.3
19/41
.463
72
53.3
62.2
71.1
80.0
88.9
18/39
.461
70
53.2
62.1
71.0
79.8
88.7
17/37
.459
68
52.9
61.7
70.5
79.3
88.1
18/40
.450
70
51.8
60.4
69.1
77.8
86.4
19/43
.442
72
50.9
59.4
67.89
76.4
84.9

Bold lettering indicates perfect chain fit.
*Use as a guide only

When using 9 tooth drives, multiply above chart to compensate for overdrive
clutch and longer drives. Example: 20/39 at 8000 rpm using data from above chart
of 78.8 mph X 1.24 = 97.71 mph. When using 10 tooth drivers, multiply above
chart by 1.36 to compensate for overdirve and extra large drivers. Example:
20/39 at 8000 rpm using data from above chart of 78.8 mph X 1.36= 107.17 mph.

Fast True Pitch™ 15 Link Wide Upper Sprockets & Chain
Number of TeethP/N
18FL-161-4518
19FL-161-4519
20FL-161-4520
21FL-161-4521
22FL-161-4522
23FL-161-4523
24FL-161-4524
25FL-161-4525
26FL-161-4526
33FL-161-4533
34FL-161-4534
35FL-161-4535
37FL-161-4537
39FL-161-4539
40FL-161-4540
41FL-161-4541
42FL-161-4542
43FL-161-4543
70 Pitch ChainFL-164-1570
72 Pitch ChainFL-164-1572

 
 
 

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