Description
The Boyesen Racing Reed for Yamaha 679 delivers measurable performance gains across your entire powerband, from low-end responsiveness to peak acceleration. Laboratory flow analysis confirms that Boyesen’s dual-stage reed design permits greater flow velocity than standard reeds at all operating pressures, translating to real horsepower and throttle response you’ll feel immediately. If you’re serious about maximizing your 679’s potential, this is a bolt-on upgrade that pays dividends.
- Dual-stage reed design
- Higher flow velocity
- Improved low-end response
- Enhanced top-end acceleration
- Laboratory flow-tested
- Yamaha 679 specific
- Bolt-on installation
- MPN: 679
