---
product_id: 15699666
title: "MOTO TASSINARI REED VALVE VFORCE4 VFORCE 4 V FORCE 4 YAMAHA BLASTER V4145"
brand: "moto tassinari"
price: "$281.69"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.ec/products/15699666-moto-tassinari-reed-valve-vforce4-vforce-4-v-force-4
store_origin: EC
region: Ecuador
---

# MOTO TASSINARI REED VALVE VFORCE4 VFORCE 4 V FORCE 4 YAMAHA BLASTER V4145

**Brand:** moto tassinari
**Price:** $281.69
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** MOTO TASSINARI REED VALVE VFORCE4 VFORCE 4 V FORCE 4 YAMAHA BLASTER V4145 by moto tassinari
- **How much does it cost?** $281.69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/15699666-moto-tassinari-reed-valve-vforce4-vforce-4-v-force-4)

## Best For

- moto tassinari enthusiasts

## Why This Product

- Trusted moto tassinari brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

The new VForce4 is built on the solid foundation that has made the VForce3 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 don't change is the bolt pattern." However, this is actually quite true. All of the components that go into making a VForce tube system have been significantly modified since the VForce3. Doubles the surface area of the reed tip over a conventional reed valve designIncreased bottom end, stronger midrange and longer top endGreater efficiency due to the reduction of the travel of the reed petals. More airflow means more horsepower Reduced wear on reed petals Boltless design eliminates the risk of bolts going through the cane engine. Screwless design allows for super-fast reed petal changes New and Improved VFORCE4 Features Resin reed system, carbon fiber and stacking. Pre-curved reed petal ensures a better seal at the tip Wider rod cage for maximum airflow Combined reed tip area a increased by 10.5%, resulting in greater overall airflow Aerodynamic shaping added to the tip of the cage to increase air velocity from the outer ports Added Added long stops to progressively slow the petal tip, for greater petal durability Reduction of the frontal area of the central wing by 15.6% combined with a more shape aerodynamics. Includes: installation instructions, complete VForce4 valve system (including two reed valves with reed petals), and gaskets.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Resin |
| Brand | Moto Tassinari |
| Item dimensions L x W x H | 6.75 x 5 x 2.5 inches |
| Inlet Connection Size | 1 Inches |
| Inlet Connection Type | Flare |
| Number of Ports | 2 |
| Manufacturer | MOTO TASSINARI |
| UPC | 709317213430 |
| Item Weight | 8.2 ounces |
| Product Dimensions | 6.75 x 5 x 2.5 inches |
| Item model number | VFORCE4 |
| Manufacturer Part Number | V4145 |

## Product Details

- **Material:** Resin
- **Brand:** Moto Tassinari
- **Item dimensions L x W x H:** 6.75 x 5 x 2.5 inches
- **Inlet Connection Size:** 1 Inches
- **Inlet Connection Type:** Flare
- **Number of Ports:** 2
- **Manufacturer:** MOTO TASSINARI
- **UPC:** 709317213430

## Images

![MOTO TASSINARI REED VALVE VFORCE4 VFORCE 4 V FORCE 4 YAMAHA BLASTER V4145 - Image 1](https://m.media-amazon.com/images/I/51l5ut3Mr4L.jpg)

## Questions & Answers

**Q: Will it fit my blaster 2003**
A: Fits all blasters.

**Q: Hello, the product and the keys together and the fastening screws?**
A: Its a full kit.

**Q: Any modifications to the air intake boot?**
A: Yes I had to cut the part that pokes out off. Cut it flush.

**Q: Is there a noticeable power gain with this mod?**
A: The V-Force reeds increase bottom end power, strengthen the mid range, and lengthen the top end range. They have made a noticeable difference on anything I have ever used them on, including Snowmobiles, ATV's, and Dirt bikes.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Should be first mod ever
*by R***L on August 1, 2025*

Opens up the bike really good

### ⭐⭐⭐⭐⭐ Worked great no air Gap. Came with bolts and gaskets
*by J***S on December 6, 2019*

Great product for a little but crisper throttle responce. Great company great products.

### ⭐⭐⭐⭐⭐ Best reeds ever
*by M***. on June 2, 2021*

Gave quad more power

## Frequently Bought Together

- MOTO TASSINARI REED VALVE VFORCE4 VFORCE 4 V FORCE 4 YAMAHA BLASTER V4145
- REED SPACER + allen head hardware & gaskets fits Yamaha Blaster 1988-2006 by VITO's

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**Shop now:** [https://www.desertcart.ec/products/15699666-moto-tassinari-reed-valve-vforce4-vforce-4-v-force-4](https://www.desertcart.ec/products/15699666-moto-tassinari-reed-valve-vforce4-vforce-4-v-force-4)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-03-02*