855 / 1409
EXHAUST
TIRES
TUBES /
TIREACC.
SPORTBIKEACC.
CRUISER /
TOURINGACC.
LUGGAGE /
SEATS
COVERS /
SECURITY
WINDSHIELDS
HANDLEBARS /
CONTROLS
LEVERS /
CABLES
FUELSYSTEMS
AIR FILTERS
OIL FILTERS
ELECTRICAL
LIGHTING /
GAUGES
BATTERIES /
CHARGERS
ENGINE
SUSPENSION /
FRAME
DRIVE
CHAIN
SPROCKETS
BRAKES
CHINESE
VEHICLEPARTS
CHEMICALS
GASCANS
TOOLS
TRANSPORT /
TRAILER
PROMOTIONAL
REFERENCE
INDEX
x
X X
X
X
855
STOCKED SIZES: 12-15 means 12 THRU 15
12, 15 means 12 AND 15 only
Continued on the next page
OEM Gearing
Rear Sprockets
Steel Countershaft Sprockets
Application
Year
Rear C/S Chain/ Links Alum. Rear
Sizes Stocked
Standard
Sizes
Stocked Pro Only
Sizes
Stocked
YAMAHA
DT 50 LC
‘88-90
48 13
420-110
50-7021__
41
50-722__
12-15
LB 50 P
‘78-82
32 13
420-92
50-7022__
35,48,51
50-722__
12-15
RX 50 K,L
‘83-84
47 12
420-110
50-7021__
41
50-720__
11-14
YSR 50
‘87-92
44 12
420-100
50-7021__
41
50-720__
11-14
JT1 60
‘71
41 14
420-90
50-7021__
41
50-720__
11-14
RD 60
‘73-75
42 12
420-106
50-7022__
35,48,51
50-720__
11-14
YJ1, K
‘68-69
37 15
420-100
50-7021__
41
50-722__
12-15
YJ2
‘66-69
37 15
420-100
50-7021__
41
50-722__
12-15
YJ2S
‘69
38 14
420-100
50-7021__
41
50-722__
12-15
U7E 70
‘69
35 15
420-100
50-7022__
35,48,51
50-722__
12-15
G6S, G6SB
‘70-71
37 14
420-96
50-7022__
35,48,51
50-722__
12-15
GT 80
‘74-75
41 14
420-106
50-7021__
41
50-720__
11-14
‘76
41 14
420-94
50-7021__
41
50-720__
11-14
‘78-80
41 14
420-92
50-7021__
41
50-720__
11-14
GTMX
‘73-75
41 14
420-106
50-7021__
41
50-720__
11-14
‘76-78
41 14
420-94
50-7021__
41
50-720__
11-14
‘79
41 14
420-92
50-7021__
41
50-720__
11-14
GT1
‘73
41 14
420-106
50-7021__
41
50-720__
11-14
G7S
‘72
37 14
420-96
50-7022__
35,48,51
50-722__
12-15
LB 80-11
‘76
28 14
420-88
50-7021__
41
50-722__
12-15
‘77-78
30 15
420-88
50-7022__
35,48,51
50-722__
12-15
LB 80-3
‘77
31 14
420-92
50-7022__
35,48,51
50-720__
11-14
TY 80
‘74-75
41 12
420-106
50-7021__
41
50-720__
11-14
YG1
‘64
37 15
420-100
50-7022__
35,48,51
50-722__
12-15
YGK
‘67
37 15
420-100
50-7022__
35,48,51
50-722__
12-15
YGT
‘65
51 15
420-106
50-7022__
35,48,51
50-722__
12-15
YG1 TK
‘66
51 15
420-106
50-7022__
35,48,51
50-722__
12-15
YG5T
‘68
55 14
420-100
50-7022__
35,48,51
50-722__
12-15
YG5S
‘69
55 14
420-100
50-7022__
35,48,51
50-722__
12-15
HS1 90
‘70-71
40 13
420-104
50-7022__
35,48,51
50-722__
12-15
HT1 90
‘70-71
49 15
428-106
50-732__
11-15,17,18
HT1 90 MX
‘71
52 15
428-108
50-732__
11-15,17,18
LS2 100
‘72
42 14
420-106
50-7022__
35,48,51
50-722__
12-15
LT2, LT3, 100
‘72-73
49 14
428-106
50-732__
11-15,17,18
LT2 M, LT3 MX
‘72-73
52 14
428-112
50-732__
11-15,17,18
RS 100
‘75-76
36 15
428-102
50-732__
11-15,17,18
YL1 100, E
‘76-77
35 15
420-100
50-7022__
35,48,51
50-722__
12-15
YL2, C 100
‘68-69
37 16
420-104
50-7022__
35,48,51
50-722__
12-15
YL2 CM
‘68
39 16
428-104
50-742__
12-14
AS2 C
‘69
39 15
428-116
50-732__
11-15,17,18
AT1, 125 M, MX
‘69
45 15
428-112
50-732__
11-15,17,18
AT1, M, MX
‘70
45 13
428-112
50-732__
11-15,17,18
AT1, M, MX
‘71
45 14
428-112
50-732__
11-15,17,18
AT2, 125, MX, M
‘72
45 14
428-112
50-732__
11-15,17,18
AT3, 125
‘73
45 14
428-112
50-732__
11-15,17,18
IT 125
‘80-81
46 12
520-100
50-7053__
46
50-652__
13
RD 125
‘75-76
39 14
428-110
50-732__
11-15,17,18
TA 125
‘73-74
36 17
428-110
50-732__
11-15,17,18
YA6 125
‘66
39 15
428-108
50-732__
11-15,17,18
YAS1C 125
‘68
39 15
428-104
50-732__
11-15,17,18
CT1 175
‘69
45 14
428-112
50-732__
11-15,17,18
‘70-71
45 16
428-112
50-732__
11-15,17,18
CT2 175
‘72
45 14
428-112
50-732__
11-15,17,18
CT3 175
‘73
45 15
428-112
50-732__
11-15,17,18
IT 175
‘77-78
41 12
520-94
50-7053__
46
50-652__
13
‘79
41 12
520-96
50-7053__
46
50-652__
13
IT 175
‘80-82
44 12
520-100
50-7057__
44,47,49,52,56
50-652__
13
50-7057U__
48,51,52 Pro-Series
IT 175
‘83
44 12
520-104
50-7057__
44,47,49,52,56
50-652__
13
50-7057U__
48,51,52 Pro-Series
CS3 200 C, B
‘70-71
40 14
428-106
50-732__
11-15,17,18
CS5 200
‘72
40 14
428-106
50-732__
11-15,17,18
SPROCKETS