FRONT SPROCKET 14 [JTF555.14] 428 MX-55514
The Dirt Racing Front Drive Sprocket JTF555.14 is designed for 428 chain conversion from a 420 chain setup. It is manufactured from S45C carbon steel and heat treated to HRC 50–55 for durability. The sprocket features a sandblasted finish to reduce surface tension and meets or exceeds motorcycle industry compound quality standards. It serves as a direct OEM replacement. Specifications include 14 teeth, 428 chain size, S45C carbon steel material, HRC 50–55 hardness, and a sandblasted surface finish. Cross-reference OEM part numbers include JTF555, JTF547, and SF547-14.DR.
- SKU
- SF547-14.DR
- Brand
- Dirt Racing
- Availability
- In Stock (15)
FULL DESCRIPTION
Dirt Racing Front Sprocket 14 Tooth for 428 Chain Conversion
Upgrade your motorcycle's drivetrain with this high-quality front drive sprocket from Dirt Racing. Designed specifically for 428 chain conversions, this sprocket offers enhanced strength and durability compared to standard 420 chain setups. It is engineered as a direct OEM replacement, ensuring a precise fit and reliable performance.
Key Features:
- Facilitates conversion from a 420 chain setup to a more robust 428 heavy-duty chain.
- Manufactured from durable S45C carbon steel for extended wear life.
- Heat-treated to HRC 50–55 for exceptional hardness and resistance to deformation.
- Features a sandblasted finish to reduce surface tension and improve material integrity.
- Meets or exceeds stringent motorcycle industry quality standards.
- Provides a direct fit as an OEM replacement part.
Specifications:
- Tooth Count: 14
- Chain Size Compatibility: 428 (Designed for conversion from 420)
- Material: S45C Carbon Steel
- Hardness: HRC 50–55
- Surface Finish: Sandblasted


