Description
If you’re running a KX250 or competitive ATV and need throttle response that actually matches your input, reed quality is non-negotiable. The Boyesen Pro Series delivers the fastest piston speed tracking in its class, translating directly to acceleration gains without sacrificing durability. This is the upgrade that separates consistent lap times from guesswork.
- Dual-stage reed design
- Carbon fiber top reed
- Fiberglass/epoxy bottom reed
- Quick piston speed response
- Maximizes horsepower output
- Maximizes torque delivery
- Extended reed life
- Sold per cylinder set
- Bolt-on installation
- MPN: PRO04
