SPROCKETS

SPROCKETS

ALUMINUM REAR SPROCKETS

The 7075 T651 aluminum we use for these sprockets receives an extra tempering which

reduces distortion and provides optimal thickness vs. typically thinner 7075 T6 sprockets

100% machined, no stamping or grinding

Optimal tooth thickness results in maximum tooth and chain contact

We leave the “cleaning” grooves out of our sprockets, because more aluminum contacting

your chain means longer chain and sprocket life

Moose Racing rear sprockets come anodized in black; select Moose Racing rear sprockets

are available in blue, orange, and red

See price list on page 391

Made in the U.S.A.

CHROMOLY STEEL FRONT SPROCKETS

Machined from impact and wear resistant chromoly steel

Inner splines are broached to provide maximum spline-to-countershaft contact – this helps distribute driveline forces over the largest possible area

Heat-treated, then finished with a nickel coating for corrosion resistance and lubricity

BE SURE TO CHECK FOR CLEARANCE WHEN ORDERING SIZES LARGER THAN STOCK

See price list on page 391

Made in the U.S.A.

STANDARD

FRONT

REAR

STANDARD

FRONT

REAR

FITS MODEL

CHAIN

GEARING

SIZE

P ART  #

SIZE

P ART  #

FITS MODEL

CHAIN

GEARING

SIZE

P ART  #

SIZE

P ART  #

HONDA

HONDA (CONT)

MB 5 82

420-106 13/43

12

M603-21-12 4 -

-

CR80R 85

420-114 15/49

12

M603-21-12 4 49

M630-25-49

MR50 74-75

420-92

-

13

M603-21-13 -

-

13

M603-21-13 49

1211-0660 1

Z50A 69-71

420-74

13/34

14

M603-21-14 -

-

14

M603-21-14 50

M630-25-50

Z50A 72-78

420-76

12/37

15

M603-21-15 -

-

15

M603-21-15 50

1211-0661 1

Z50R 79-81

420-76

12/37

-

-

-

51

1211-0662 1

Z50R 82-87

420-76

13/37

-

-

-

52

1211-0663 1

Z50R 88-99

420-76

14/37

-

-

-

55

1211-0666 1

ZB50 88

420-100 15/39

-

-

-

56

1211-0150

CRF/ XR50R 00-16

420-78

14/37

14

M603-25-14 35

1211-0003

-

56

1211-0667 1

15

M603-25-15 37

M630-61-37

CR80R 86-95

420-114 15/49

14

M603-25-14 49

M630-25-49

-

39

1211-0004

CR80R 96-02

420-116 15/49

15

M603-25-15 49

1211-0660 1

CR60R 83-84

420-104 14/45

12

M603-21-12 4 36

M630-23-36

CR85R 03-04

420-116 15/50

-

50

M630-25-50

13

M603-21-13 46

M630-23-46

CR85R 05-07

420-116 15/49

-

50

1211-0661 1

14

M603-21-14 -

-

CR85RB EXP 03-04

420-116 15/56

-

51

1211-0662 1

15

M603-21-15 -

-

CR85RB EXP 05-07

420-116 15/55

-

52

1211-0663 1

CL70 69-70

420-102 13/47

12

M603-21-12 4 -

-

-

55

1211-0666 1

CL70 71-72

420-102 13/49

13

M603-21-13 -

-

-

56

1211-0150

C70 72-83

420-96

14/36

14

M603-21-14 -

-

-

56

1211-0667 1

CT70 3-Speed 69-94 420-88

-

15

M603-21-15 -

-

XL100S 79-80

428-118 15/45

13

M603-31-13 -

-

CT/ SL70 71-72

420-96

-

-

-

XL100S 81-83

428-108 15/42

14

M603-31-14 -

-

XL70 74-76

420-96

13/44

12

M603-21-12 4 -

-

15

M603-31-15 -

-

13

M603-21-13 -

-

XR100R 81-84

428-112 14/50

13

M603-31-13 -

-

14

M603-21-14 -

-

14

M603-31-14 -

-

15

M603-21-15 -

-

15

M603-31-15 -

-

XR70R 97-99

420-86

15/36

12

M603-21-12 4 36

M630-23-36

CRF/ XR100R 85-13

428-118 14/50

13

M603-31-13 48

1211-0002

13

M603-21-13 46

M630-23-46

14

M603-31-14 48

1211-0658 1

14

M603-21-14 -

-

15

M603-31-15 50

M630-34-50

15

M603-21-15 -

-

-

50

1211-0659 1

CRF/ XR70R 00-12

420-86

15/36

14

M603-25-14 36

M630-23-36

CRF110F 13-16

420-86

14/38

12

M603-21-12 4 36

M630-23-36

15

M603-25-15 46

M630-23-46

13

M603-21-13 46

M630-23-46

XL75 77-79

420-94

14/36

12

M603-21-12 4 -

-

14

M603-21-14

-

XR75 73-76

420-100 14/44

13

M603-21-13 -

-

15

M603-21-15

-

XR75 77-78

420-100 14/46

14

M603-21-14 -

-

CB125S 70-73

428-102 15/40

15

M603-32-15 -

-

15

M603-21-15 -

-

SL125 71

428-110 15/49

-

-

XL80S 80-86

420-96

15/37

12

M603-21-12 4 -

-

NX125 88-90

428-130 15/46-48

15

M603-32-15 -

-

XR80 79-84

420-100 14/46

13

M603-21-13 -

-

CR125R 87-96

520-114 13/51

12

M602-14-12 45

M601-14-45

14

M603-21-14 -

-

CR125R 97

520-114 12/49

13

M602-14-13 45

1211-0648 1

15

M603-21-15 -

-

CR125R 98-99

520-114 13/51

-

46

M601-14-46

CRF/ XR80R 85-13

420-110 14/46

12

M603-21-12 4 36

M630-23-36

CR125R 00-01

520-114 13/51

-

46

1211-0649 1

13

M603-21-13 46

M630-23-46

CR125R 02

520-114 13/51

-

47

M601-14-47

14

M603-21-14 -

-

CR125R 03

520-116 13/52

-

47

1211-0650 1

15

M603-21-15 -

-

-

48

M601-14-48

CR80R 80

420-108 14/47

12

M603-21-12 4 -

-

-

48

1211-0651 1

CR80R 81-83

420-112 14/47

13

M603-21-13 -

-

-

49

M601-14-49

14

M603-21-14 -

-

-

49

1211-0652 1

15

M603-21-15 -

-

-

50

M601-14-50

CR80R 84

420-114 14/49

12

M603-21-12 4 36

M630-23-36

-

50

1211-0653 1

13

M603-21-13 46

M630-23-46

-

51

M601-14-51

14

M603-21-14 -

-

-

50

1211-0654 1

15

M603-21-15 -

-

-

52

M601-14-52

-

52

1211-0655 1

-

53

M601-14-53

-

53

1211-0656 1

-

54

M601-14-54

-

54

1211-0657 1

1 Red.

4 P ART #M603-21-12 may require lock plate modification.

SPROCKETS continued on next page.

2018 PARTS UNLIMITED OFFROAD