SPROCKETS
Aluminum
JT SPROCKETS
  • Computer-designed to achieve ultimate strength at
  • minimum weight
  • JT combines leading-edge technology with top
  • materials to produce the ultimate quality sprocket
    range with unbeatable value
  • Every sprocket meets or exceeds the highest
  • possible quality standards set for the motorcycle industry
  • Sprockets are heat-treated and bead-blasted to reduce material surface tension
  • Steel
  • Unless noted, front sprockets are made with C45 steel and SCM415 chromoly steel alloy;
  • rear sprockets made with top-quality-grade C45 high-carbon steel
  • Aluminum rear sprockets are made with high-strength Austrian 7075 T-6
  • anodized aluminum
  • JT aluminum sprockets are about 30% lighter than a comparable steel equivalent, which
  • reduces un-sprung rotating weight and improves performance
  • Lightweight front sprockets available for some applications as noted
  • RUBBER CUSHIONED FRONT SPROCKETS “RB”
  • Used by the major Japanese motorcycle manufacturers since early 1990’s to dampen the chain impact
  • KEY TO NOTES:
    on the teeth of the front sprocket
    LW = Lightweight front.
  • These same sprockets are now available to the aftermarket
  • ST = Steel.
  • Quality, design and OEM proven technology are the same as used for what is supplied to the
  • AL = Aluminum.
    motorcycle manufacturers
    RB = Rubber cushioned.
    NOTE: When installing sprockets which differ from OEM sizes, check for proper clearances before operating.
    FRONT
    REAR
    FRONT
    REAR
    STOCK
    STOCK
    SPROCKET
    SPROCKET
    STOCK
    STOCK
    SPROCKET
    SPROCKET
    FITS MODEL
    GEARING CHAIN
    SIZE
    PART #
    NOTES SIZE
    PART #
    NOTES
    FITS MODEL
    GEARING CHAIN
    SIZE
    PART #
    NOTES SIZE
    PART #
    NOTES
    APRILIA
    GAS GAS
    SXV450/ 550 06-10
    15-46
    520-112 15
    1212-0769
    46
    1210-0646 ST
    125EC/XC 03-11
    13-48
    520-112 13
    JTF564-13
    42
    JTR822-42 ST
    RXV450/ 550 06-10
    15-48
    520-112
    -
    48
    1210-0647 ST
    14
    JTF564-14
    48
    1212-0243 AL
    BETA
    250EC/XC 00-11
    13-47
    520-114 13
    1212-0605
    42
    JTR822-42 ST
    250RR 2T 13-14
    13-49
    520-114 12
    JTF1901-12
    38
    1210-0630 ST
    -
    48
    1212-0243 AL
    300RR 2T 13-14
    13-49
    520-114 13
    1212-0513
    LW
    39
    1210-0631 ST
    300EC/XC 00-11
    13-47
    520-114 13
    1212-0605
    42
    JTR822-42 ST
    14
    1212-0514
    LW
    40
    1210-0083 ST
    -
    48
    1212-0243 AL
    15
    1212-0837
    LW
    42
    1210-1726 ST
    SM400 03-04
    13-42
    520-112 13
    1212-0605
    42
    JTR822-42 ST
    -
    43
    1210-1727 ST
    -
    48
    1212-0243 AL
    -
    44
    1210-0084 ST
    SM450 03-04
    13-42
    520-112 13
    1212-0605
    42
    JTR822-42 ST
    -
    45
    JTR210-45 ST
    -
    48
    1212-0243 AL
    -
    45
    1211-0812 AL
    HONDA
    -
    46
    JTR210-46 ST
    Z50A 69-78
    12-37
    420-76
    12
    JTF252-12
    37
    1210-0085 ST
    -
    46
    1211-0813 AL
    Z50R 79-81
    12-37
    420-76
    13
    JTF252-13
    -
    -
    47
    JTR210-47 ST
    Z50R 82-87
    13-37
    420-76
    14
    JTF252-14
    -
    -
    47
    1211-0814 AL
    Z50R 88-99
    14-37
    420-76
    15
    JTF252-15
    -
    -
    48
    JTR210-48 ST
    Z50RD 86, 92-93
    16
    1212-1293
    -
    -
    48
    1211-0815 AL
    17
    1212-1294
    -
    -
    49
    JTR210-49 ST
    CRF50F 04-16/
    14-37
    420-78
    13
    JTF1256-13
    37
    1212-0232 ST
    -
    49
    1211-0816 AL
    XR50R 00-04
    14
    JTF1256-14
    37
    -
    -
    -
    50
    JTR210-50 ST
    15
    JTF1256-15
    -
    -
    50
    1211-0817 AL
    16
    1212-0213
    -
    -
    51
    JTR210-51 ST
    CR60R 83-84
    14-45
    420-104 13
    JTF253-13
    36
    JTR1214-36 ST
    -
    51
    1211-0818 AL
    14
    JTF253-14
    45
    JTR1214-45 ST
    -
    52
    JTR210-52 ST
    15
    JTF253-15
    46
    JTR1214-46 ST
    -
    52
    1211-0819 AL
    16
    1212-0226
    47
    JTR1214-47 ST
    -
    53
    JTR210-53 ST
    17
    1212-0558
    49
    JTR1214-49 ST
    -
    53
    1211-0820 AL
    CT70 69-71
    15-38
    420-88
    13
    JTF253-13
    35
    JTR256-35 ST
    350RR 12
    13-50
    520-114 12
    JTF1901-12
    41
    1210-0841 ST
    CT70H 70-72
    14-45
    420-92
    15
    JTF253-15
    37
    JTR256-37 ST
    400RR 10-12
    13-50
    520-114 13
    1212-0513
    LW
    42
    JTR822-42 ST
    CT70 91-94
    15-35
    420-86
    16
    1212-0226
    38
    JTR256-38 ST
    450RR 10-12
    13-50
    520-112 14
    1212-0514
    LW
    43
    JTR822-43 ST
    SL70 71-72
    13-44
    420-96
    17
    1212-0558
    44
    JTR256-44 ST
    498 RR 12
    13-50
    520-112 15
    1212-0837
    LW
    44
    1210-0842 ST
    XL70 74-76
    13-44
    420-96
    -
    46
    JTR256-46 ST
    520RR 10-11
    13-50
    520-112
    -
    45
    1210-0658 ST
    XR70R 97-99
    15-36
    420-86
    13
    JTF253-13
    36
    JTR1214-36 ST
    -
    46
    1212-0242 ST
    15
    JTF253-15
    46
    JTR1214-46 ST
    -
    47
    1210-0659 ST
    16
    1212-0226
    47
    JTR1214-47 ST
    -
    48
    1212-0243 ST
    -
    49
    JTR1214-49 ST
    -
    49
    JTR822-49 ST
    CRF70 04-12/
    15-36
    420-86
    13
    JTF1256-13
    36
    JTR1214-36 ST
    -
    50
    1212-0244 ST
    XR70R 00-04
    14
    JTF1256-14
    45
    JTR1214-45 ST
    -
    52
    1212-0245 ST
    15
    JTF1256-15
    46
    JTR1214-46 ST
    BMW
    16
    1212-0213
    47
    JTR1214-47 ST
    G450X 08-10
    15-48
    520-114 15
    1212-0765
    48
    1210-0656 ST
    -
    49
    JTR1214-49 ST
    15
    1212-0767
    51
    1210-0657 ST
    XL75 77-79
    14-36
    420-94
    12
    JTF252-12
    35
    JTR256-35 ST
    F650GS 08-12
    17-41
    525-116 15
    1212-0768
    41
    1210-0642 2 ST
    XR75 73-76
    14-44
    420-100 13
    JTF252-13
    36
    JTR256-36 ST
    -
    41
    1210-0638 3 ST
    XR75 77-78
    14-46
    420-100 14
    JTF252-14
    37
    JTR256-37 ST
    G650 Xchallenge,
    15
    JTF252-15
    38
    JTR256-38 ST
    Xcountry 07-09
    16-47
    520-112 -
    -
    47
    1210-0669 ST
    -
    44
    JTR256-44 ST
    F700GS 13-17
    17-42
    525-116 15
    1212-0768
    41
    1210-0638 ST
    -
    46
    JTR256-46 ST
    -
    42
    1210-0639 ST
    2 For 8.5mm bolts.
    F800GS 08-12
    16-42
    525-116 15
    1212-0768
    42
    1210-0639 3 ST
    3 For 10.5mm bolts.
    -
    42
    1210-0643 2 ST
    F800GS 13-17
    17-42
    525-116 15
    1212-0768
    42
    1210-0638 ST
    -
    42
    1210-0639 ST
    JT SPROCKETS continued on next page.
    2018 PARTS UNLIMITED OFFROAD