Vforce 4R Reed Valve System

If you ride a GASGAS MC 85, KTM 85cc/105cc, or Husqvarna 85cc, this is the must-have performance upgrade. The VFORCE4R delivers unbeatable throttle response and power thanks to its unique VForce reed valve design — but it doesn’t stop there.

With rubber overmolded reed cage tips and longer reed stops, you’re getting significantly extended reed petal life and superior reliability under pressure. That means less maintenance, more riding, and better performance every time you twist the throttle.

⚡ More power.
⚡ Better response.
⚡ Longer life.

Don’t settle for stock. Bolt on the advantage. The VFORCE4R V4R85A isn’t just an upgrade — it’s a game changer.

Features:

• Uses symmetrical reed petals, no more inner and outer petals
• Incorporates the industry's first and only patented snap-together reed valve design. The entire assembly is completely screw free
• Custom air guides specific to each individual application ensure maximum airflow
• Utilizes and advances composite technology with an all-new carbon fiber lay-up and resin system. This new lay-up was designed entirely around the reed cage design of the VForce 3 for superior performance and response
• New, improved reed stop design completely eliminates the need for retaining screws. This feature now removes any possible chance of failure
• Airfoil-shaped (flat on bottom/curved on top) reed tip surface increases the velocity of the fuel/air mixture as it passes through, creating the optimum fuel atomization