AFAM 520MX6 14/52 Reinforced Chain Kit - Ultra-Light Sprocket for GAS GAS, HUSQVARNA, and KTM 150, 250, 350, and 450 models from

AFAM offers this reinforced 520MX6 chain kit for the GAS GAS MCF 250 cc, GAS GAS MCF FACTORY EDITION 250 cc, GAS GAS MCF 350 cc, HUSQVARNA FC 250 cc, HUSQVARNA FC 350 cc, KTM SX 150 cc, KTM SX-F 250 cc, KTM SX-F ADAMO EDITION 250 cc, KTM SX-F FACTORY EDITION 250 cc, KTM SX-F 350 cc, KTM SX-F 450 cc, KTM SX-F FACTORY EDITION 450 cc, with an A520MX6-GG chain with 118 links, a standard 73301 14-tooth steel sprocket, and a 72304 52-tooth aluminum sprocket. The chain features a gold/gold finish, a 520 pitch, and reinforced construction suitable for MX use. The 14/52 gear ratio, or 3.71, prioritizes traction and acceleration while maintaining a longer gear ratio than a 13/52 setup. The Ultra-Light 7075 T6 aluminum sprocket reduces weight compared to a steel sprocket, contributing to a more responsive drivetrain. This configuration thus combines the durability of a steel sprocket with the lightness of an aluminum sprocket to withstand the high stresses of motocross.

Fits:

GAS GAS MC 250 F 2026

GAS GAS MC 250 F 2025

GAS GAS MC 250 F 2024

GAS GAS MC 350 F 2025

GAS GAS MC 350 F 2024

GAS GAS MC 250 F FACTORY EDITION 2026

HUSQVARNA FC 250 2025

HUSQVARNA FC 250 2024

HUSQVARNA FC 250 2023

HUSQVARNA FC 350 2025

HUSQVARNA FC 350 2024

HUSQVARNA FC 350 2023

KTM 150 SX 2023

KTM 150 SX 2022

KTM 150 SX 2021

KTM 150 SX 2020

2023 KTM 450 SX-F

2021 KTM 450 SX-F FACTORY EDITION

2024 KTM 250 SX-F

2027 KTM 250 SX-F

2026 KTM 250 SX-F

2025 KTM 250 SX-F

2025 KTM 250 SX-F ADAMO EDITION

2027 KTM 350 SX-F

2026 KTM 350 SX-F

2025 KTM 350 SX-F

KTM 150 SX 2019

KTM 250 SX-F FACTORY EDITION 2027

2026 KTM 250 SX-F Factory Edition