BOYESEN RAD VALVE 03-11 RM125, BLOCK RAD-21J, RAD21J
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Delivery to United States 5–8 business days
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BOYESEN RAD VALVE 03-11 RM125, BLOCK RAD-21J, RAD21J. Now delivered with carbon fiber reeds for even greater performance gains. Maintains flow velocity through the valve and redirects intake charge for more even distribution to the intake ports. Sharper, quicker throttle response. Added torque improves performance on hills, through corners and over technical jumps. Increases horsepower in low-, middle- and especially the top-end ranges. One-piece aluminum casting, no trimming or plastic inserts required.
- SKU
- 05-R21J
- Brand
- Boyesen
- Availability
- In Stock (1)
Fitments (5)
| Make | Model | Year |
|---|---|---|
| SUZUKI | RM 125 | 2003 |
| SUZUKI | RM 125 | 2004 |
| SUZUKI | RM 125 | 2005 |
| SUZUKI | RM 125 | 2006 |
| SUZUKI | RM 125 | 2007 |
- General Product Group
- Carburettor & Intake
- General Product Type
- Reeds - Valve
- Variant Id
- 208765
FULL DESCRIPTION
Boyesen RAD Valve Performance Intake System
Upgrade your motorcycle's intake system with the Boyesen RAD Valve. This performance-enhancing component is engineered to optimize airflow and fuel distribution for a noticeable improvement in power and responsiveness.
The Boyesen RAD Valve features a unique design that maintains flow velocity through the valve. It actively redirects the intake charge for a more even distribution to the intake ports, ensuring efficient combustion across all engine speeds.
Key Features:
- Enhanced Performance: Delivers sharper, quicker throttle response for improved control and acceleration.
- Increased Torque: Provides added torque, benefiting performance on hills, through corners, and over technical terrain.
- Broader Power Band: Increases horsepower in the low-, mid-, and especially the top-end engine ranges.
- Premium Construction: Features a durable one-piece aluminum casting, eliminating the need for trimming or plastic inserts.
- Carbon Fiber Reeds: Now includes carbon fiber reeds for even greater performance gains and longevity.
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.
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