20% OFF MSRP
Boyesen
SKU: BOY-71623
Boyesen Rad Valve System
MSRP: $189.95
$151.96
IN STOCK (41)
Exact Fitment Guarantee
2025 Suzuki RM-Z250
2024 KTM 300 XC-W
2024 Suzuki RM-Z450
2023 Kawasaki KX450
2022 KTM 450 SX-F
Premium aftermarket upgrade for Intake & Fuel. Proven to lower lap times and increase durability across elite supercross and endure networks. Part of the 2026 ground-up chassis overhaul.
Designed to deliver race-ready performance and legendary durability under the most extreme motocross and enduro conditions. This Boyesen component features precision engineering with bolt-on installation that requires no major modifications.
- Factory-level performance upgrades sourced directly from Boyesen.
- Built for specific year/make/model tolerance constraints with exact OEM cross-referencing.
- Premium materials tested and proven in competitive motocross environments.
- Free shipping on orders over $99 within the continental US.
100% Secure
Fast Delivery