PBR Ultra-Light C45 Steel 4690 - 520 SprocketRef : PBR01082A / 1108946001

The PBR ultra-light C45 steel sprocket 4690 (520) is designed for motocross riders looking for a robust and compact component for their transmission. Developed in collaboration with WMX champion Kiara Fontanesi, this sprocket features a lightweight design with technical solutions dedicated to reducing weight without apparent compromise on mechanical strength.

• Manufacturer reference: 4690 48 C45
• Brand: PBR
• Material: black galvanized C45 steel, CNC machined
• Number of teeth: 48 (pitch 520)
• Type: standard, for 520 chain
• Color: black

The lightweight drilling and CNC machining give this sprocket a technical and refined look while reducing unsprung mass — a noticeable advantage in acceleration and corner exit. Its galvanized treatment provides protection against corrosion, useful in muddy and wet conditions encountered in motocross.

Compatibility and application examples: ideal for lightweight motocross and enduro machines. Top 3 motorcycles frequently equipped with this reference:

• YAMAHA YZ 450 F (2026 - 450 cc)
• KTM 500 EXC-F (2024 - 500 cc)
• FANTIC XX 125 (2022 - 125 cc)