RK YAMAHA
MOTOCROSS KITS
Lightweight
MX Race Kits - Aluminum Rear & Gold Steel C/S Sprockets.
Q/A Quick Acceleration Kits - Quicker then OE Gearing!
| RK Chain/Sprocket Kits - |
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Model |
Model Year |
Sort By Kit Part # |
Notes: |
Front Spkt |
Rear Spkt |
RK Chain |
RTL Price |
| YZ85 |
02-08 |
4002-028Z |
|
1546S-14 |
505-48 |
428MXZ3-118 |
$100.00 |
| YZ85 |
02-08 |
4002-028ZB |
|
1546S-14 |
505K-48 |
428MXZ3-118 |
$110.00 |
| YZ85 |
02-08 |
4002-028ZG |
|
1546S-14 |
505-48 |
GB428MXZ3-118 |
$110.00 |
| YZ85 |
02-08 |
4002-028ZK |
|
1546S-14 |
505K-48 |
GB428MXZ3-118 |
$120.00 |
| YZ80 |
93-01 |
4002-938Z |
|
1505-14 |
505-48 |
428MXZ3-118 |
$100.00 |
| YZ80 |
93-01 |
4002-938ZB |
|
1505-14 |
505K-48 |
428MXZ3-118 |
$110.00 |
| YZ80 |
93-01 |
4002-938ZG |
|
1505-14 |
505-48 |
GB428MXZ3-118 |
$110.00 |
| YZ80 |
93-01 |
4002-938ZK |
|
1505-14 |
505K-48 |
GB428MXZ3-118 |
$120.00 |
| YZ125 |
02-04 |
4012-028S |
|
3246S-13 |
6208-50 |
520MXZ4-114 |
$135.00 |
| YZ125 |
02-04 |
4012-028SG |
|
3246S-13 |
6208-50 |
GB520MXZ4-114 |
$150.00 |
| YZ125 |
02-04 |
4012-028Z |
|
3246S-13 |
208-50 |
520MXZ4-114 |
$155.00 |
| YZ125 |
02-04 |
4012-028ZB |
|
3246S-13 |
208K-50 |
520MXZ4-114 |
$165.00 |
| YZ125 |
02-04 |
4012-028ZG |
|
3246S-13 |
208-50 |
GB520MXZ4-114 |
$170.00 |
| YZ125 |
02-04 |
4012-028ZK |
|
3246S-13 |
208K-50 |
GB520MXZ4-114 |
$180.00 |
| YZ125 |
94-96 |
4012-948Z |
|
3246S-13 |
615-51 |
520MXZ4-114 |
$155.00 |
| YZ125 |
94-96 |
4012-948ZG |
|
3246S-13 |
615-51 |
GB520MXZ4-116 |
$170.00 |
| YZ125 |
97-98 |
4012-978Z |
|
3246S-13 |
615-49 |
520MXZ3-112 |
$155.00 |
| YZ125 |
97-98 |
4012-978ZG |
|
3246S-13 |
615-49 |
GB520MXZ4-116 |
$170.00 |
| YZ125 |
99-01 |
4012-998S |
|
3246S-13 |
6208-49 |
520MXZ3-112 |
$135.00 |
| YZ125 |
99-01 |
4012-998SG |
|
3246S-13 |
6208-49 |
GB520MXZ3-112 |
$150.00 |
| YZ125 |
99-01 |
4012-998Z |
|
3246S-13 |
208-49 |
520MXZ3-112 |
$155.00 |
| YZ125 |
99-01 |
4012-998ZB |
|
3246S-13 |
208K-49 |
520MXZ3-112 |
$165.00 |
| YZ125 |
99-01 |
4012-998ZG |
|
3246S-13 |
208-49 |
GB520MXZ3-112 |
$170.00 |
| YZ125 |
99-01 |
4012-998ZK |
|
3246S-13 |
208K-49 |
GB520MXZ3-112 |
$180.00 |
| YZ250F / YZ125 |
01-06 / 05-08 |
4022-018S |
|
3217S-13 |
6208-49 |
520MXZ4-114 |
$135.00 |
| YZ250F / YZ125 |
01-06 / 05-08 |
4022-018SG |
|
3217S-13 |
6208-49 |
GB520MXZ4-114 |
$150.00 |
| YZ250F / YZ125 |
01-06 / 05-08 |
4022-018Z |
|
3217S-13 |
208-49 |
520MXZ4-114 |
$155.00 |
| YZ250F / YZ125 |
01-06 / 05-08 |
4022-018ZB |
|
3217S-13 |
208K-49 |
520MXZ4-114 |
$165.00 |
| YZ250F / YZ125 |
01-06 / 05-08 |
4022-018ZG |
|
3217S-13 |
208-49 |
GB520MXZ4-114 |
$170.00 |
| YZ250F / YZ125 |
01-06 / 05-08 |
4022-018ZK |
|
3217S-13 |
208K-49 |
GB520MXZ4-114 |
$180.00 |
| YZ250F |
07-08 |
4022-078S |
|
3217S-13 |
6208-50 |
520MXZ4-114 |
$135.00 |
| YZ250F |
07-08 |
4022-078SG |
|
3217S-13 |
6208-50 |
GB520MXZ4-114 |
$150.00 |
| YZ250F |
07-08 |
4022-078Z |
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3217S-13 |
208-50 |
520MXZ4-114 |
$155.00 |
| YZ250F |
07-08 |
4022-078ZB |
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3217S-13 |
208K-50 |
520MXZ4-114 |
$165.00 |
| YZ250F |
07-08 |
4022-078ZG |
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3217S-13 |
208-50 |
GB520MXZ4-114 |
$170.00 |
| YZ250F |
07-08 |
4022-078ZK |
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3217S-13 |
208K-50 |
GB520MXZ4-114 |
$180.00 |
| YZ250 |
94-97 |
4022-948Z |
|
3216S-13 |
615-50 |
520MXZ4-114 |
$155.00 |
| YZ250 |
94-97 |
4022-948ZG |
|
3216S-13 |
615-50 |
GB520MXZ4-114 |
$170.00 |
| YZ250 |
98 |
4022-988Z |
|
3216S-14 |
615-51 |
520MXZ3-116 |
$155.00 |
| YZ250 |
98 |
4022-988ZG |
|
3216S-14 |
615-51 |
GB520MXZ4-116 |
$165.00 |
| YZ250 |
99-08 |
4022-998S |
|
3370S-14 |
6208-51 |
520MXZ4-116 |
$135.00 |
| YZ250 |
99-08 |
4022-998SG |
|
3370S-14 |
6208-51 |
GB520MXZ4-116 |
$150.00 |
| YZ250 |
99-08 |
4022-998Z |
|
3370S-14 |
208-51 |
520MXZ4-116 |
$155.00 |
| YZ250 |
99-08 |
4022-998ZB |
|
3370S-14 |
208K-51 |
520MXZ4-116 |
$165.00 |
| YZ250 |
99-08 |
4022-998ZG |
|
3370S-14 |
208-51 |
GB520MXZ4-116 |
$170.00 |
| YZ250 |
99-08 |
4022-998ZK |
|
3370S-14 |
208K-51 |
GB520MXZ4-116 |
$180.00 |
| YZ250 |
99-08 |
4122-998S |
|
3370S-14 |
6208-51 |
520EXW-116 |
$150.00 |
| YZ250 |
99-08 |
4122-998SG |
|
3370S-14 |
6208-51 |
GB520EXW-116 |
$165.00 |
| WR250F |
01-06 / 07-08 |
4121-018S |
T/E Kit for 01-06 models, contains 1 tooth smaller than OE rear. QA Kit for 07-08 models, contains 1 tooth larger than OE rear. |
3217S-13 |
6208-51 |
520EXW-114 |
$150.00 |
| WR250F |
01-06 / 07-08 |
4121-018SG |
T/E Kit for 01-06 models, contains 1 tooth smaller than OE rear. QA Kit for 07-08 models, contains 1 tooth larger than OE rear. |
3217S-13 |
6208-51 |
GB520EXW-114 |
$165.00 |
| YZ450F / WR400,426,450F |
03-04 / 99-06 |
4042-038S |
T/E kit for WR400,426,450F 14-50, 3.57 |
3370S-14 |
6208-49 |
520MXZ4-116 |
$135.00 |
| YZ450F / WR400,426,450F |
03-04 / 99-06 |
4042-038SG |
T/E kit for WR400,426,450F 14-50, 3.57 |
3370S-14 |
6208-49 |
GB520MXZ4-116 |
$150.00 |
| YZ450F / WR400,426,450F |
03-04 / 99-06 |
4042-038Z |
T/E kit for WR400,426,450F 14-50, 3.57 |
3370S-14 |
208-49 |
520MXZ4-116 |
$155.00 |
| YZ450F / WR400,426,450F |
03-04 / 99-06 |
4042-038ZB |
T/E kit for WR400,426,450F 14-50, 3.57 |
3370S-14 |
208K-49 |
520MXZ4-116 |
$165.00 |
| YZ450F / WR400,426,450F |
03-04 / 99-06 |
4042-038ZG |
T/E kit for WR400,426,450F 14-50, 3.57 |
3370S-14 |
208-49 |
GB520MXZ4-116 |
$170.00 |
| YZ450F / WR400,426,450F |
03-04 / 99-06 |
4042-038ZK |
T/E kit for WR400,426,450F 14-50, 3.57 |
3370S-14 |
208K-49 |
GB520MXZ4-116 |
$180.00 |
| YZ450F / WR400,426,450F |
03-04 / 99-06 |
4142-038S |
T/E kit for WR400,426,450F 14-50, 3.57 |
3370S-14 |
6208-49 |
520EXW-116 |
$150.00 |
| YZ450F / WR400,426,450F |
03-04 / 99-06 |
4142-038SG |
T/E kit for WR400,426,450F 14-50, 3.57 |
3370S-14 |
6208-49 |
GB520EXW-116 |
$165.00 |
| YZ450F |
2005 |
4042-058S |
|
3370S-14 |
6208-51 |
520MXZ4-116 |
$135.00 |
| YZ450F |
2005 |
4042-058SG |
|
3370S-14 |
6208-51 |
GB520MXZ4-116 |
$150.00 |
| YZ450F |
2005 |
4042-058Z |
|
3370S-14 |
208-52 |
520MXZ4-116 |
$155.00 |
| YZ450F |
2005 |
4042-058ZG |
|
3370S-14 |
208-52 |
GB520MXZ4-116 |
170.00 |
| YZ450F |
2005 |
4142-058S |
|
3370S-14 |
6208-51 |
520EXW-116 |
$150.00 |
| YZ450F |
2005 |
4142-058SG |
|
3370S-14 |
6208-51 |
GB520EXW-116 |
$165.00 |
| YZ450F / WR450F |
06-08 / 07-08 |
4042-068S |
Kit is OE for 07-08 WR450F 13-50, 3.85 |
3370S-13 |
6208-50 |
520MXZ4-114 |
$135.00 |
| YZ450F / WR450F |
06-08 / 07-08 |
4042-068SG |
Kit is OE for 07-08 WR450F 13-50, 3.85 |
3370S-13 |
6208-50 |
GB520MXZ4-114 |
$150.00 |
| YZ450F / WR450F |
06-08 / 07-08 |
4042-068Z |
Kit is OE for 07-08 WR450F 13-50, 3.85 |
3370S-13 |
208-50 |
520MXZ4-114 |
$155.00 |
| YZ450F / WR450F |
06-08 / 07-08 |
4042-068ZB |
Kit is OE for 07-08 WR450F 13-50, 3.85 |
3370S-13 |
208K-50 |
520MXZ4-114 |
$165.00 |
| YZ450F / WR450F |
06-08 / 07-08 |
4042-068ZG |
Kit is OE for 07-08 WR450F 13-50, 3.85 |
3370S-13 |
208-50 |
GB520MXZ4-114 |
$170.00 |
| YZ450F / WR450F |
06-08 / 07-08 |
4042-068ZK |
Kit is OE for 07-08 WR450F 13-50, 3.85 |
3370S-13 |
208K-50 |
GB520MXZ4-114 |
$180.00 |
| YZ450F / WR450F |
06-08 / 07-08 |
4142-068S |
Kit is OE for 07-08 WR450F 13-50, 3.85 |
3370S-13 |
6208-50 |
520EXW-114 |
$150.00 |
| YZ450F / WR450F |
06-08 / 07-08 |
4142-068SG |
Kit is OE for 07-08 WR450F 13-50, 3.85 |
3370S-13 |
6208-50 |
GB520EXW-114 |
$165.00 |
| YZ400F |
98 |
4042-988Z |
|
3370S-14 |
615-50 |
520MXZ4-116 |
$155.00 |
| YZ400F |
98 |
4042-988ZG |
|
3370S-14 |
615-50 |
GB520MXZ4-116 |
$170.00 |
| YZ400F,426F / WR400F,426F,450F |
99-02 / 99-06 |
4042-998S |
Kit is OE gearing for WR 14-50, 3.57 |
3370S-14 |
6208-50 |
520MXZ4-116 |
$135.00 |
| YZ400F,426F / WR400F,426F,450F |
99-02 / 99-06 |
4042-998SG |
Kit is OE gearing for WR 14-50, 3.57 |
3370S-14 |
6208-50 |
GB520MXZ4-116 |
$150.00 |
| YZ400F,426F / WR400F,426F,450F |
99-02 / 99-06 |
4042-998Z |
Kit is OE gearing for WR 14-50, 3.57 |
3370S-14 |
208-50 |
520MXZ4-116 |
$155.00 |
| YZ400F,426F / WR400F,426F,450F |
99-02 / 99-06 |
4042-998ZB |
Kit is OE gearing for WR 14-50, 3.57 |
3370S-14 |
208K-50 |
520MXZ4-116 |
$165.00 |
| YZ400F,426F / WR400F,426F,450F |
99-02 / 99-06 |
4042-998ZG |
Kit is OE gearing for WR 14-50, 3.57 |
3370S-14 |
208-50 |
GB520MXZ4-116 |
$170.00 |
| YZ400F,426F / WR400F,426F,450F |
99-02 / 99-06 |
4042-998ZK |
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3370S-14 |
208K-50 |
GB520MXZ4-116 |
$180.00 |
| YZ400,426F / WR400,426,450F |
99-02 / 99-06 |
4142-998S |
Kit is OE gearing for WR400,426,450F |
3370S-14 |
6208-50 |
520EXW-116 |
$150.00 |
| YZ400,426F / WR400,426,450F |
99-02 / 99-06 |
4142-998SG |
Kit is OE gearing for WR400,426,450F |
3370S-14 |
6208-50 |
GB520EXW-116 |
$165.00 |
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| S |
Steel Sprocket Non-Gold Chain |
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| SG |
Steel Sprocket, Gold Chain |
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| Z |
Aluminum Sprocket, Non-Gold Chain |
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| ZG |
Aluminum Sprocket, Gold Chain |
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| ZB |
Black Aluminum Sprocket - Non-gold Chain |
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| ZK |
Black Aluminum Sprocket, Gold Chain |
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