The all-new VForce4 is built upon the solid foundation that has made the VForce3 such a success for the last 10 years. While the VForce3 has been continually refined over the years, this is a complete redesign of the entire system. We jokingly say, "The only thing we didn't change is the bolt pattern." However this is actually quite true. All the components that go into making a VForce reed valve system have been significantly changed since the VForce3.
NOTE: KTM MODELS 250SX 2003 and 250/300 EXC/MXC 2004-2006 require 2004 SX intake boot.
The unique design of the VForce reed valve system features double the reed tip surface over a conventional reed valve design. This has two major benefits: 1) The reed petals only travel half the distance as a conventional reed valve design to get the same airflow. 2) Because the reed petals only need to travel half the distance of that on a conventional reed valve design, there is a greater chance of them being fully opened as well as a better chance of sealing when they are "closed". A reed petal never truly "closes" in a classic sense, as it is always in movement. Consider this, an engine operating at 8,000 RPM results in a reed petal opening and closing 133 times in one second. This fact, sheds light on another VForce advantage. Since the petals are only traveling half the distance, they generally last longer as they receive less wear than the reed petals on a conventional reed valve design.
STANDARD VFORCE REED VALVE FEATURES
- Double the reed tip surface over a conventional reed valve design
- Increased bottom end, stronger mid-range and longer top-end
- Greater efficiency due to reduced reed petal travel
- More airflow means more horsepower
- Reduced reed petal wear
- Screw free design eliminates risk of screws going through motor
- Screw free design enables super quick reed petal changes
NEW AND IMPROVED VFORCE4 FEATURES
- All-new reed petal resin system, carbon fiber and lay-up
- Pre-curved reed petal ensures better seal at tip
- Wider reed cage for maximum airflow
- Combined reed tip area increased by 10.5% resulting in increased total air flow
- Airfoil shape added to cage tip to increase air velocity from outer ports
- Long reed stops added to progressively slow petal tip velocity, for increased petal durability
- Reduced frontal area of central wing by 15.6% combined with a more aerodynamic shape
These provisions apply in the event that you return any Goods to us for any reason :
11.1. We do not accept returns unless there was a defect in the Goods at the time of purchase, or we have agreed in correspondence that you may return them.
11.2. Before you return the Goods to us, please carefully re-read the instructions and check that you have assembled it correctly and complied with any provisions relating to the power supply, plugs and sockets.
11.3. The Goods must be returned to us as soon as any defect is discovered but not later than 7 days.
11.4. So far as possible, Goods should be returned:
11.4.1 with both Goods and all packaging as far as possible in their original condition;
11.4.2 securely wrapped;
11.4.3 including our delivery slip;
11.4.4 at your risk and cost.
11.5. If you wish to return items please go to our Home Page and select "Return Items" in the header section to log a request to return your items.
11.6. In returning faulty Goods please encloses with it a note clearly stating the fault and when it arises or arose.
11.7. Most of the Goods are covered by the manufacturer's guarantee for a minimum of  months. Please first check the plug, fuse, batteries and the manufacturer's operating instructions.
11.8. If we agree that the Goods are faulty, we will:
11.8.1 refund the cost of return carriage;
11.8.2 repair or replace the Goods as we choose.
8.1. Goods are delivered within 2-5 days from the day you place an order to purchase the Goods.
8.2. Deliveries will be made by the Carrier to the address stipulated in your order or our courier offices for neigbouring country deliviries. You must ensure that someone is present to accept the delivery.
8.3. If we are not able to deliver your Goods within 2-5 days of the date of your order, we shall notify you by e-mail to arrange another date for delivery.
8.4. We may deliver the Goods in installments if they are not all available at the same time for delivery.
8.5. Goods are sent at our risk until signed for by you or by any other person at the address you have given to us.
8.6. All Goods must be signed for on delivery by an adult aged 18 years or over. If no one of that age is at the address when the delivery is attempted the Goods may be retained by the driver. When your Goods arrive, it is important that you check immediately the condition and quantity. If your Goods have been damaged in transit, you must refuse the delivery and immediately contact us so that we may dispatch a replacement quickly and minimize your inconvenience.
8.7. Signing "Unchecked", "Not Checked" or similar is not acceptable.
8.8. Goods are sent by courier. We will send you a message by email to tell you when we have dispatched your order.
8.9. If we agree with you to deliver on a particular day or at a particular time, we will do our best to comply. But no time given is to be treated as contractual. So we are not liable to you for any expense or inconvenience you incur on account of delayed delivery or nondelivery.
8.10. Some Goods will be delivered direct from the manufacturer who will contact you to arrange delivery. When delivery of the Goods has been arranged directly with the manufacturer, you will be subject to the manufacturer's delivery policy.
8.11. Some Goods are so large and heavy that delivery times may be slightly longer. In this case, approximate delivery dates will be given when you place your order.
8.12. Time for delivery specified on the order, if any, is an estimate only and time shall not be of the essence.