923 / 1355
EXHAUST
TIRES
TUBES
TIRE
ACCESSORIES
BIKE
ACCESSORIES
PITBIKE
GRAPHICS /SEAT
BODY
MIRRORS
CONTROLS
BARS /GRIPS
LEVERS
CABLES
INTAKE
FUELSYSTEMS
AIR FILTERS
OIL FILTERS
ELECTRICAL
SPARKPLUGS
BATTERIES
CHARGERS
ENGINE
PISTONS
SUSPENSION
DRIVE
CHAIN
SPROCKETS
BRAKES
CHEMICALS
GASCANS
TOOLS
LOCKS
RAMPS /STRAPS
TRAILERS
PROMOTIONAL
REFERENCE
INDEX
x
X X
X
X
923
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
Application
Year
Rear C/S
Chain/
Links
Alum. Rear
Sizes Stocked
Standard
Sizes
Stocked Pro Only
Sizes
Stocked
ATK
406/605
‘94
48
520
50-5259__
48
BETA
200/300 2 stroke
‘13-
520
50-1157__
48-54
50-855__
12-16
350-525RR
‘13-
520
50-1157__
48-54
50-855__
12-16
GAS GAS
EC/ECF125-450
All
520
50-1157__
48-54
HONDA
MB5
‘82
43 13 420-106
50-321__
11-16
MR50K1
‘74-75
43 12 420-92
50-321__
11-16
NS50F
‘90
43 14 420-118
50-321__
11-16
XR50
‘00-03
37 14 420-78
50-3061__
36-40
50-325__
13-15
CRF50
‘04-14
37 14 420-78
50-3061__
36-40
50-325__
13-15
Z50
‘69-71
34 13 420-74
50-3021__
37
50-321__
11-16
‘72-81
37 12 420-76
50-3021__
37
50-321__
11-16
‘82-91
37 12 420-76
50-3021__
37
50-321__
11-16
‘92-99
37 14 420-76
50-3021__
37
50-321__
11-16
ZB50
‘88
39 15 420-100
50-321__
11-16
CR60R
‘83-84
45 14 420-104
50-3023__
46
50-321__
11-16
CL70
‘69-70
47 13 420-102
50-321__
11-16
‘71-72
49 13 420-102
50-321__
11-16
C70
‘72-73
36 14 420-96
50-321__
11-16
‘80-83
36 14 420-96
50-321__
11-16
CRF70
‘04-12
36 15 420-86
50-3023__
46
50-325__
13-15
CT70 3 Speed
‘69-71
38 15 420-88
50-321__
11-16
‘72-94
35 15 420-86
50-321__
11-16
CT70H
‘71-72
45 14 420-92
50-321__
11-16
SL70
‘71-72
44 13 420-96
50-321__
11-16
XL70
‘74-76
44 13 420-96
50-321__
11-16
XR70
‘97-99
36 15 420-86
50-3023__
46
50-321__
11-16
‘00-03
36 15 420-86
50-3023__
46
50-325__
13-15
XL75
‘77-79
36 14 420-94
50-321__
11-16
XR75
‘73-76
44 14 420-100
50-321__
11-16
‘77-78
46 14 420-100
50-321__
11-16
CR80R
‘80-81
47 14 420-108
50-321__
11-16
‘82-83
47 14 420-112
50-3024__
49
50-321__
11-16
‘84
49 14 420-114
50-3023__
46
50-321__
11-16
CR80R
‘85
49 15 420-114
50-3025__
49,50,55
50-321__
11-16
50-3025U__
49 Pro-Series
CR80R
‘86-95
49 15 420-114
50-3025__
49,50,55
50-325__
13-15
50-033__
13-14
50-3025U__
49 Pro-Series
CR80/85R
‘96-07
49 15 420-116
50-3025__
49,50,55
50-325__
13-15
50-033__
13-14
50-3025U__
49 Pro-Series
CR80/85R Expert
‘96-07
55 15 420-126
50-3025__
49,50,55
50-325__
13-15
50-033__
13-14
50-3025U__
49 Pro-Series
CR80/85R Expert 428Conv.
‘96-06
428
50-335__
13-17
CRF80
‘04-13
46 14 420-110
50-3023__
46
50-321__
11-16
XL80S
‘80-86
37 15 420-96
50-321__
11-16
XR80
‘79-84
46 14 420-100
50-321__
11-16
XR80R
‘85-03
46 14 420-110
50-3023__
46
50-321__
11-16
CT90
‘68-69
45 14 428-116
50-3031__
45,50
50-332__
13-16
‘70-78
45 15 428-104
50-3031__
45,50
‘79
45 15 428-86
50-3031__
45,50
EZ90 Cub
‘90-96
35 14 428-102
50-3033__
35
ST90
‘73-74
40 15 428-94
50-3042__
40,48
50-333__
14,15
‘75
40 15 428-94
50-3031__
45,50
XL100
‘74-76
49 14 428-110
50-3042__
40,48
50-334__
13-16
‘77-78
49 14 428-112
50-3041__
50
50-334__
13-16
XL100S
‘79-80
45 15 428-118
50-3041__
50
50-331__
12-15
‘81-83
42 15 428-108
50-3030__
42,57
50-331__
12-15
‘84-86
42 15 428-108
50-3030__
42,57
50-334__
13-16
XR100
‘81-84
50 14 428-112
50-3030__
42,57
50-331__
12-15
XR100R
‘85-03
50 14 428-118
50-3034__
46,48,50,52
50-331__
12-15
CRF100F
‘04-13
50 14 428-118
50-3034__
46,48,50,52
50-331__
12-15
CRF110F
All
38 14 420-110
50-3023__
38,40,45,46
50-321__
11-16
CT110
‘80-86
45 15 428-104
50-3030__
42,57
CR125
‘73
51 14 428-118
50-3042__
40,48
50-333__
14,15
SPROCKETS