Product description
The Moto Tassinari V-Force 4 Reed Valve Set For Yamaha YZ125 2005-2026 - Black is part of the latest collection from Moto Tassinari.
Features:
- 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
- Combined reed tip area increased by 10.5%, resulting in increased total airflow
- Rubber overmolding on reed tip surface of cage to further enhance petal life
- Airfoil shape added to cage tip to increase air velocity from outer ports
- All-new manifold, reed cage and air guide designed for the VForce4R
- When ordering replacement reeds, order one set per reed cage
- 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
- Made in the USA
Specifications:
- Base Color: Black
- Color/Finish: Black
- Material: Carbon Fiber| Rubber
- Model: V-Force 4
- Product Name: Reed Valve
- Type: Snap Together
- Units: Set
To fit:
- YAMAHA YZ 125 X 1976 All Models
- YAMAHA YZ 125 X 2020 American Models
- YAMAHA YZ 125 X 2021 American Models
- YAMAHA YZ 125 X 2022 American Models
- YAMAHA YZ 125 X 2023 American Models
- YAMAHA YZ 125 X 2024 American Models
- YAMAHA YZ 125 X 2025 American Models
- YAMAHA YZ 125 X 2026 American Models
- YAMAHA YZ 125 2005 All Models
- YAMAHA YZ 125 2006 American Models
- YAMAHA YZ 125 2006 European Models
- YAMAHA YZ 125 2007 American Models
- YAMAHA YZ 125 2007 European Models
- YAMAHA YZ 125 2008 American Models
- YAMAHA YZ 125 2008 European Models
- YAMAHA YZ 125 2009 American Models
- YAMAHA YZ 125 2009 European Models
- YAMAHA YZ 125 2010 American Models
- YAMAHA YZ 125 2010 European Models
- YAMAHA YZ 125 2011 American Models
- YAMAHA YZ 125 2011 European Models
- YAMAHA YZ 125 2012 American Models
- YAMAHA YZ 125 2012 European Models
- YAMAHA YZ 125 2013 American Models
- YAMAHA YZ 125 2013 European Models
- YAMAHA YZ 125 2014 American Models
- YAMAHA YZ 125 2014 European Models
- YAMAHA YZ 125 2015 American Models
- YAMAHA YZ 125 2015 European Models
- YAMAHA YZ 125 2016 American Models
- YAMAHA YZ 125 2016 European Models
- YAMAHA YZ 125 2017 American Models
- YAMAHA YZ 125 2017 European Models
- YAMAHA YZ 125 2018 European Models
- YAMAHA YZ 125 2019 All Models
- YAMAHA YZ 125 2020 All Models
- YAMAHA YZ 125 2021 All Models
- YAMAHA YZ 125 2022 Monster Energy Racing Edition All Models
- YAMAHA YZ 125 2022 All Models
- YAMAHA YZ 125 2023 Monster Energy Racing Edition All Models
- YAMAHA YZ 125 2023 All Models
- YAMAHA YZ 125 2024 50th Anniversary Edition All Models
- YAMAHA YZ 125 2024 All Models
- YAMAHA YZ 125 2025 Monster Energy Edition All Models
- YAMAHA YZ 125 2025 All Models
- YAMAHA YZ 125 2026 All Models
Manufacturer part number: V4R04
View all Moto Tassinari. View all Parts and spares.
Contents
Your package will include the following:
- 1 X Moto Tassinari V-Force 4 Reed Valve Set For Yamaha YZ125 2005-2026 - Black
To fit:
- YAMAHA YZ 125 X 1976 All Models
- YAMAHA YZ 125 X 2020 American Models
- YAMAHA YZ 125 X 2021 American Models
- YAMAHA YZ 125 X 2022 American Models
- YAMAHA YZ 125 X 2023 American Models
- YAMAHA YZ 125 X 2024 American Models
- YAMAHA YZ 125 X 2025 American Models
- YAMAHA YZ 125 X 2026 American Models
- YAMAHA YZ 125 2005 All Models
- YAMAHA YZ 125 2006 American Models
- YAMAHA YZ 125 2006 European Models
- YAMAHA YZ 125 2007 American Models
- YAMAHA YZ 125 2007 European Models
- YAMAHA YZ 125 2008 American Models
- YAMAHA YZ 125 2008 European Models
- YAMAHA YZ 125 2009 American Models
- YAMAHA YZ 125 2009 European Models
- YAMAHA YZ 125 2010 American Models
- YAMAHA YZ 125 2010 European Models
- YAMAHA YZ 125 2011 American Models
- YAMAHA YZ 125 2011 European Models
- YAMAHA YZ 125 2012 American Models
- YAMAHA YZ 125 2012 European Models
- YAMAHA YZ 125 2013 American Models
- YAMAHA YZ 125 2013 European Models
- YAMAHA YZ 125 2014 American Models
- YAMAHA YZ 125 2014 European Models
- YAMAHA YZ 125 2015 American Models
- YAMAHA YZ 125 2015 European Models
- YAMAHA YZ 125 2016 American Models
- YAMAHA YZ 125 2016 European Models
- YAMAHA YZ 125 2017 American Models
- YAMAHA YZ 125 2017 European Models
- YAMAHA YZ 125 2018 European Models
- YAMAHA YZ 125 2019 All Models
- YAMAHA YZ 125 2020 All Models
- YAMAHA YZ 125 2021 All Models
- YAMAHA YZ 125 2022 Monster Energy Racing Edition All Models
- YAMAHA YZ 125 2022 All Models
- YAMAHA YZ 125 2023 Monster Energy Racing Edition All Models
- YAMAHA YZ 125 2023 All Models
- YAMAHA YZ 125 2024 50th Anniversary Edition All Models
- YAMAHA YZ 125 2024 All Models
- YAMAHA YZ 125 2025 Monster Energy Edition All Models
- YAMAHA YZ 125 2025 All Models
- YAMAHA YZ 125 2026 All Models

Moto Tassinari is renowned for high-performance intake systems and the legendary VForce reed valve technology. Designed to improve throttle response, power delivery and overall engine efficiency, Moto Tassinari products are trusted by motocross, enduro and road riders worldwide seeking race-proven reliability and measurable performance gains.
Product description
The Moto Tassinari V-Force 4 Reed Valve Set For Yamaha YZ125 2005-2026 - Black is part of the latest collection from Moto Tassinari.
Features:
- 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
- Combined reed tip area increased by 10.5%, resulting in increased total airflow
- Rubber overmolding on reed tip surface of cage to further enhance petal life
- Airfoil shape added to cage tip to increase air velocity from outer ports
- All-new manifold, reed cage and air guide designed for the VForce4R
- When ordering replacement reeds, order one set per reed cage
- 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
- Made in the USA
Specifications:
- Base Color: Black
- Color/Finish: Black
- Material: Carbon Fiber| Rubber
- Model: V-Force 4
- Product Name: Reed Valve
- Type: Snap Together
- Units: Set
To fit:
- YAMAHA YZ 125 X 1976 All Models
- YAMAHA YZ 125 X 2020 American Models
- YAMAHA YZ 125 X 2021 American Models
- YAMAHA YZ 125 X 2022 American Models
- YAMAHA YZ 125 X 2023 American Models
- YAMAHA YZ 125 X 2024 American Models
- YAMAHA YZ 125 X 2025 American Models
- YAMAHA YZ 125 X 2026 American Models
- YAMAHA YZ 125 2005 All Models
- YAMAHA YZ 125 2006 American Models
- YAMAHA YZ 125 2006 European Models
- YAMAHA YZ 125 2007 American Models
- YAMAHA YZ 125 2007 European Models
- YAMAHA YZ 125 2008 American Models
- YAMAHA YZ 125 2008 European Models
- YAMAHA YZ 125 2009 American Models
- YAMAHA YZ 125 2009 European Models
- YAMAHA YZ 125 2010 American Models
- YAMAHA YZ 125 2010 European Models
- YAMAHA YZ 125 2011 American Models
- YAMAHA YZ 125 2011 European Models
- YAMAHA YZ 125 2012 American Models
- YAMAHA YZ 125 2012 European Models
- YAMAHA YZ 125 2013 American Models
- YAMAHA YZ 125 2013 European Models
- YAMAHA YZ 125 2014 American Models
- YAMAHA YZ 125 2014 European Models
- YAMAHA YZ 125 2015 American Models
- YAMAHA YZ 125 2015 European Models
- YAMAHA YZ 125 2016 American Models
- YAMAHA YZ 125 2016 European Models
- YAMAHA YZ 125 2017 American Models
- YAMAHA YZ 125 2017 European Models
- YAMAHA YZ 125 2018 European Models
- YAMAHA YZ 125 2019 All Models
- YAMAHA YZ 125 2020 All Models
- YAMAHA YZ 125 2021 All Models
- YAMAHA YZ 125 2022 Monster Energy Racing Edition All Models
- YAMAHA YZ 125 2022 All Models
- YAMAHA YZ 125 2023 Monster Energy Racing Edition All Models
- YAMAHA YZ 125 2023 All Models
- YAMAHA YZ 125 2024 50th Anniversary Edition All Models
- YAMAHA YZ 125 2024 All Models
- YAMAHA YZ 125 2025 Monster Energy Edition All Models
- YAMAHA YZ 125 2025 All Models
- YAMAHA YZ 125 2026 All Models
Manufacturer part number: V4R04
View all Moto Tassinari. View all Parts and spares.
Contents
Your package will include the following:
- 1 X Moto Tassinari V-Force 4 Reed Valve Set For Yamaha YZ125 2005-2026 - Black
To fit:
- YAMAHA YZ 125 X 1976 All Models
- YAMAHA YZ 125 X 2020 American Models
- YAMAHA YZ 125 X 2021 American Models
- YAMAHA YZ 125 X 2022 American Models
- YAMAHA YZ 125 X 2023 American Models
- YAMAHA YZ 125 X 2024 American Models
- YAMAHA YZ 125 X 2025 American Models
- YAMAHA YZ 125 X 2026 American Models
- YAMAHA YZ 125 2005 All Models
- YAMAHA YZ 125 2006 American Models
- YAMAHA YZ 125 2006 European Models
- YAMAHA YZ 125 2007 American Models
- YAMAHA YZ 125 2007 European Models
- YAMAHA YZ 125 2008 American Models
- YAMAHA YZ 125 2008 European Models
- YAMAHA YZ 125 2009 American Models
- YAMAHA YZ 125 2009 European Models
- YAMAHA YZ 125 2010 American Models
- YAMAHA YZ 125 2010 European Models
- YAMAHA YZ 125 2011 American Models
- YAMAHA YZ 125 2011 European Models
- YAMAHA YZ 125 2012 American Models
- YAMAHA YZ 125 2012 European Models
- YAMAHA YZ 125 2013 American Models
- YAMAHA YZ 125 2013 European Models
- YAMAHA YZ 125 2014 American Models
- YAMAHA YZ 125 2014 European Models
- YAMAHA YZ 125 2015 American Models
- YAMAHA YZ 125 2015 European Models
- YAMAHA YZ 125 2016 American Models
- YAMAHA YZ 125 2016 European Models
- YAMAHA YZ 125 2017 American Models
- YAMAHA YZ 125 2017 European Models
- YAMAHA YZ 125 2018 European Models
- YAMAHA YZ 125 2019 All Models
- YAMAHA YZ 125 2020 All Models
- YAMAHA YZ 125 2021 All Models
- YAMAHA YZ 125 2022 Monster Energy Racing Edition All Models
- YAMAHA YZ 125 2022 All Models
- YAMAHA YZ 125 2023 Monster Energy Racing Edition All Models
- YAMAHA YZ 125 2023 All Models
- YAMAHA YZ 125 2024 50th Anniversary Edition All Models
- YAMAHA YZ 125 2024 All Models
- YAMAHA YZ 125 2025 Monster Energy Edition All Models
- YAMAHA YZ 125 2025 All Models
- YAMAHA YZ 125 2026 All Models

Moto Tassinari is renowned for high-performance intake systems and the legendary VForce reed valve technology. Designed to improve throttle response, power delivery and overall engine efficiency, Moto Tassinari products are trusted by motocross, enduro and road riders worldwide seeking race-proven reliability and measurable performance gains.































