BOYESEN RAD BLOCK 87-04 KX500
4.1 Trustpilot 99.9% positive on eBay
Delivery to United States 5–8 business days
Spread the cost with 
BOYESEN RAD BLOCK 87-04 KX500. Delivered with carbon fiber reeds for greater performance gains. Maintains flow velocity through the valve and redirects intake charge for more even distribution to the intake ports. Features sharper, quicker throttle response. Added torque improves performance on hills, through corners and over technical jumps. Increases horsepower in low-, middle-, and top-end ranges. One-piece aluminum casting, no trimming or plastic inserts required.
- SKU
- 05-R13
- Brand
- Boyesen
- Availability
- In Stock (2)
Fitments (18)
| Make | Model | Year |
|---|---|---|
| KAWASAKI | KX 500 | 1987 |
| KAWASAKI | KX 500 | 1988 |
| KAWASAKI | KX 500 | 1989 |
| KAWASAKI | KX 500 | 1990 |
| KAWASAKI | KX 500 | 1991 |
| KAWASAKI | KX 500 | 1992 |
| KAWASAKI | KX 500 | 1993 |
| KAWASAKI | KX 500 | 1994 |
| KAWASAKI | KX 500 | 1995 |
| KAWASAKI | KX 500 | 1996 |
| KAWASAKI | KX 500 | 1997 |
| KAWASAKI | KX 500 | 1998 |
| KAWASAKI | KX 500 | 1999 |
| KAWASAKI | KX 500 | 2000 |
| KAWASAKI | KX 500 | 2001 |
| KAWASAKI | KX 500 | 2002 |
| KAWASAKI | KX 500 | 2003 |
| KAWASAKI | KX 500 | 2004 |
- General Product Group
- Carburettor & Intake
- General Product Type
- Reeds - Valve
- Variant Id
- 208754
FULL DESCRIPTION
Boyesen RAD Valve with Carbon Fiber Reeds
Experience a significant performance upgrade with the Boyesen RAD Valve, now enhanced with cutting-edge carbon fiber reeds. This innovative intake manifold design is engineered to optimize your engine's breathing, delivering noticeable improvements across the entire RPM range.
Key Features:
- Enhanced Performance: Carbon fiber reeds provide superior responsiveness and durability for maximum power gains.
- Optimized Flow Velocity: The unique design maintains crucial flow velocity through the valve, ensuring efficient intake charge delivery to the ports.
- Improved Distribution: Redirects the intake charge for a more even distribution to the intake ports, leading to smoother power delivery.
- Sharper Throttle Response: Enjoy a more immediate and precise throttle reaction, giving you greater control.
- Increased Torque: Benefit from added torque, which is particularly advantageous for tackling hills, navigating corners, and powering through technical terrain.
- Horsepower Gains: Expect increased horsepower in the low-, mid-, and especially the top-end power bands.
- Durable Construction: Features a robust one-piece aluminum casting, eliminating the need for trimming or plastic inserts.
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).
Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.
Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.