| Product Type | Sprockets & Components (Front) |
|---|---|
| Product Group | Chain & Sprockets |
| Catalogue | DIRT |
| Number of Teeth | 13.0 |
| Pitch | |
| Links | |
| Chain Colour | |
| Chain Type | |
| Sprocket Material | |
| Sprocket Type |
FRONT SPROCKET 13 [JTF421/422.13] 520
FRONT DRIVE SPROCKET 13 TEETH [JTF421/422.13] 520
Fitment:
KAWASAKI
KX125 1980-1993
KDX 175 1979-1985
SUZUKI
RG125 FU-N,P,R Wolf 1992-1994
TSR125 (TS125R-L/R) 1990-1994
GT185 1974-1979
TF185 1981-
TS 185 1979-1984
GT200 EX (X5) 1979-1982
SB200 N,X 1979-1981
T20 Super Six 1968
Yamaha ATV
YT125 J,K,L,N (Tri Moto) 1982-1985
YT175 J,K (Tri Moto) 1982-1983
YAMAHA
DT175 (520 HD)
– Carbon Steel S45C.
– Hardness HRC 50-55 After heat treating.
– Each sprocket is sandblasted to reduce surface tension.
– Meet or exceed the highest-quality compound standards set by the motorcycle industry.
– oro2u products are a high quality replacement part and carries our guarantee of your satisfaction.
Part No. SF421-13.DR (Distributed oro2u.com)
Cross reference numbers ONLY.
PSYCHIC MX-50213, JTF421.13, JTF422.13,
For full information on our delivery and returns policy please click the links below.
Form

![FRONT SPROCKET 13 [JTF421/422.13] 520](https://s3.us-west-2.amazonaws.com/exciting-dubinsky.52-56-113-123/wp-content/uploads/2025/09/25032320/stock75679_2-1.jpg)
![FRONT SPROCKET 13 [JTF421/422.13] 520 - Image 2](https://s3.us-west-2.amazonaws.com/exciting-dubinsky.52-56-113-123/wp-content/uploads/2025/09/25032317/stock75679_1-1.jpg)

