VForce4R Moto Tassinari Moto Tassinari KTM 250 SX 03-15 / EXC/MXC 250/300 04-16

KTM models:
*250SX 2003 | * 250/300 EXC/MXC 2004-2006 | 250SX 2004-2015 | 250/300 EXC/MXC/XCW 2007-2016
*require SX nozzle 2004

HUSQVARNA models:
2014-2016 TE/TC 250-300

New V-Force 4 carbon reed box, replaces the V-Force 3. Significantly increases low end, with the end result of getting more power out of your bike.
The new VForce4Rreed box for the KTM 250 SX (03-15), EXC/MXC 250/300 (04-16) and HUSQVARNA TE/TC 250/300 (2014-16) has been designed to offer exceptional durability and significantly improve the performance of the stock reed system.

Unique VForce reed valve system design features twice the surface area of the reed tip over a conventional reed valve design. This has two main benefits:

1) The reed petals only travel half the distance as a conventional reed valve design to obtain the same airflow.

2) Because the reed petals only need to travel half the distance as a conventional reed valve design, there is a greater chance of them opening fully, as well as a better chance of sealing when "closed", making more horsepower, and a noticeable change to gas response. Being fitted by many Origin brand manufacturers.

This Moto Tassinari V-Force intake reed system features a patented, state-of-the-art membrane valve design.
The design accelerates the airflow mixture to bring more horsepower to the engine with a noticeable improvement to throttle response, and a significant increase in performance on the bike.
This design has more advantages than the stock design, as the reeds offer twice the surface area, so they travel half the distance and achieve the same air and fuel flow.
The combination results in explosive acceleration, improved throttle response and better fuel economy.
A must read article, to get the most out of your 2-stroke.