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:active=1,:agrpcount=0,:base_price=143.99,:cancat_id=0,:catcount=9,:code=MOTO-TASSINARI-VFORCE4-SYSTEM,:cost=0,:customfield_values:customfields:brand=Moto+Tassinari,:customfield_values:customfields:rating=5,:customfield_values:customfields:RETAIL=158.95,:customfield_values:productimagecustomfields:main=graphics%2F00000001%2Fmoto-tassinari-vforce-v4.jpg,:descrip=%3Ch2%3EMoto+Tassinari+-+VForce+4%2F4R+System%3C%2Fh2%3E%0D%0A%3Cp%3EBuilt+and+race+tested+by+race+teams+all+over+the+world%2C+the+Moto+Tassinari+VForce+4%2F4R+reed+valve+system+provides+an+increase+bottom+end+and+stronger+power+through+the+mid+and+top+end+ranges+on+modern+2-stroke+motocross+bikes.+The+engineers+at+Moto+Tassinari+took+the+solid+foundation+from+the+highly+successful+VForce+3+system+and+redesigned+the+V4%2FV4R+to+give+more+durability+while+providing+the+max+efficiency.+This+also+means+that+power+delivery+is+much+improved%2C+thus+giving+you+more+explosive+power+for+your+2-stroke+motocross+bike.+%26nbsp%3B%3C%2Fp%3E%0D%0A%3Cp%3E%26nbsp%3B%3C%2Fp%3E%0D%0A%3Cp%3EBy+doubling+the+reed+tip+surface+over+conventional+reed+designs%2C+the+VForce+4%2F4R+system+has+two+major+advantages+over+stock+OEM+reed+systems.+The+first+advantage+allows+the+reed+petals+to+travel+only+half+the+distance+compared+to+conventional+designs+to+provide+the+same+airflow%2C+allowing+a+more+consistent+opening+and+sealing+when+closed.+Because+of+this+design+feature%2C+the+reed+pedals+will+last+longer+since+they+receive+less+wear.%3C%2Fp%3E%0D%0A%3Cbr%3E%0D%0A%3Cp%3EMoto+Tassinari+has+developed+one+of+the+best+reed+valves+on+the+market.+The+VForce+4R+reed+valve+is+an+all-new+reed+valve+for+the+2017+Husqvarna+and+KTM+250cc+and+300cc+two+strokes.+These+products+in+general+are+designed+to+bring+you+more+midrange+power+so+you+can+get+a+jump+on+your+competition.+Moto+Tassinari+constructed+this+VForve+4R+reed+valve+with+a+rubber+overmolding+on+the+reed+tips+to+increase+its+longevity+and+an+all-new+manifold%2C+reed+cage%2C+and+air+guide+to+increase+performance.+This+is+a+performance+upgrade+you+will+notice+instantly%21%3C%2Fp%3E%0D%0A%3Ch2%3EV4+Features%3A%3C%2Fh2%3E%0D%0A%3Cul%3E%0D%0A++++%3Cli%3EDouble+the+reed+tip+surface+over+a+conventional+reed+valve+design%3C%2Fli%3E%0D%0A++++%3Cli%3EIncreased+bottom+end%2C+stronger+mid-range+and+longer+top-end%3C%2Fli%3E%0D%0A++++%3Cli%3EGreater+efficiency+due+to+reduced+reed+petal+travel%3C%2Fli%3E%0D%0A++++%3Cli%3EMore+airflow+means+more+horsepower%3C%2Fli%3E%0D%0A++++%3Cli%3EReduced+reed+petal+wear%3C%2Fli%3E%0D%0A++++%3Cli%3EScrew+free+design+eliminates+risk+of+screws+going+through+motor%3C%2Fli%3E%0D%0A++++%3Cli%3EScrew+free+design+enables+super+quick+reed+petal+changes%3C%2Fli%3E%0D%0A++++%3Cli%3E%3Cspan+style%3D%22font-size%3A+x-large%3B%22%3E%3Cstrong%3E%3C%2Fstrong%3E%3C%2Fspan%3EAll+New+reed+petal+resin+system%2C+carbon+fiber+and+lay-up.%3C%2Fli%3E%0D%0A++++%3Cli%3EPre-curved+reed+petal+ensures+better+seal+at+tip.%3C%2Fli%3E%0D%0A++++%3Cli%3EWider+reed+cage+for+maximum+airflow.%3C%2Fli%3E%0D%0A++++%3Cli%3ECombined+reed+tip+area+increased+by+10.5%25+resulting+in+increased+total+air+flow.%3C%2Fli%3E%0D%0A++++%3Cli%3EAirfoil+shape+added+to+cage+tip+to+increase+air+velocity+from+outer+ports.%3C%2Fli%3E%0D%0A++++%3Cli%3ELong+reed+stops+added+to+pregressively+slow+petal+tip+velocity%2C+for+increased+petal+durability.%3C%2Fli%3E%0D%0A++++%3Cli%3EReduced+frontal+area+of+central+wing+by+15.6%25+combined+with+a+more+aerodynamic+shape.%3Cbr%3E%0D%0A++++%3C%2Fbr%3E+++++%3C%2Fli%3E%0D%0A%3C%2Ful%3E%0D%0A%3Ch2%3EV4R+Features%3A%3C%2Fh2%3E%0D%0A%3Cul%3E%0D%0A++++%3Cli%3EThe+all-new+VForce4R+for+the+2017+KTM+and+Husqvarna+250%2F300+has+been+designed+to+offer+you+exceptional+durability+and+overcome+the+shortcomings+of+the+stock+reed+valve+system.%3C%2Fli%3E%0D%0A++++%3Cli%3ERubber+overmodling+on+reed+tip+surface+of+cage+to+further+enhance+petal+life%3C%2Fli%3E%0D%0A++++%3Cli%3EAll-new+manifold%2C+reed+cage+and+air+guide+designed+for+the+VFVorce4R%3C%2Fli%3E%0D%0A%3C%2Ful%3E%0D%0A%3Ch2%3EIncluded+In+the+Box%3A%3C%2Fh2%3E%0D%0A%3Cul%3E%0D%0A++++%3Cli%3EMoto+Tassinari+product+line+brochure%2C%3C%2Fli%3E%0D%0A++++%3Cli%3EMoto+Tassinari+and+VForce+decals%2C%3C%2Fli%3E%0D%0A++++%3Cli%3EDetailed+installation+instructions%2C%3C%2Fli%3E%0D%0A++++%3Cli%3EComplete+VForce4+reed+valve+system+%28including+reed+petals%29%3C%2Fli%3E%0D%0A++++%3Cli%3EGaskets.%3C%2Fli%3E%0D%0A%3C%2Ful%3E%0D%0A%3Cp%3E%26nbsp%3B%3C%2Fp%3E,:disp_order=86657,:formatted_base_price=%24143.99,:formatted_cost=%240.00,:formatted_price=%24143.99,:formatted_retail=%24143.99,:id=16703,:image=graphics%2F00000001%2Fmoto-tassinari-vforce-v4.jpg,:inv_active=0,:link=https%3A%2F%2Fwww.btosports.com%2Fmm5%2Fmerchant.mvc%3FStore_Code%3DBSOS%26Screen%3DPROD%26Product_Code%3DMOTO-TASSINARI-VFORCE4-SYSTEM,:metafield:description=Moto+Tassinari+VForce+4%2F4R+System+-+Give+your+2-stroke+the+upgrade+of+its+life.+Check+out+the+new+Moto+Tassinari+VForce+4%2F4R+reed+valves+here+at+BTOsports.com%21,:metafield:ke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Moto Tassinari - VForce 4/4R System

Product Code: MOTO-TASSINARI-VFORCE4-SYSTEM
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Moto Tassinari - VForce 4/4R System

Built and race tested by race teams all over the world, the Moto Tassinari VForce 4/4R reed valve system provides an increase bottom end and stronger power through the mid and top end ranges on modern 2-stroke motocross bikes. The engineers at Moto Tassinari took the solid foundation from the highly successful VForce 3 system and redesigned the V4/V4R to give more durability while providing the max efficiency. This also means that power delivery is much improved, thus giving you more explosive power for your 2-stroke motocross bike.  

 

By doubling the reed tip surface over conventional reed designs, the VForce 4/4R system has two major advantages over stock OEM reed systems. The first advantage allows the reed petals to travel only half the distance compared to conventional designs to provide the same airflow, allowing a more consistent opening and sealing when closed. Because of this design feature, the reed pedals will last longer since they receive less wear.


Moto Tassinari has developed one of the best reed valves on the market. The VForce 4R reed valve is an all-new reed valve for the 2017 Husqvarna and KTM 250cc and 300cc two strokes. These products in general are designed to bring you more midrange power so you can get a jump on your competition. Moto Tassinari constructed this VForve 4R reed valve with a rubber overmolding on the reed tips to increase its longevity and an all-new manifold, reed cage, and air guide to increase performance. This is a performance upgrade you will notice instantly!

V4 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
  • 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 pregressively slow petal tip velocity, for increased petal durability.
  • Reduced frontal area of central wing by 15.6% combined with a more aerodynamic shape.

V4R Features:

  • The all-new VForce4R for the 2017 KTM and Husqvarna 250/300 has been designed to offer you exceptional durability and overcome the shortcomings of the stock reed valve system.
  • Rubber overmodling on reed tip surface of cage to further enhance petal life
  • All-new manifold, reed cage and air guide designed for the VFVorce4R

Included In the Box:

  • Moto Tassinari product line brochure,
  • Moto Tassinari and VForce decals,
  • Detailed installation instructions,
  • Complete VForce4 reed valve system (including reed petals)
  • Gaskets.

 

REVIEW SNAPSHOT®

by PowerReviews
Moto Tassinari - VForce4 System
 
5.0

(based on 1 review)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

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Reviewed by 1 customer

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5.0

Bolt On Horsepower!

By sxpro318

from Austin, TX

Verified Reviewer

Pros

  • Easy To Install
  • Makes My 2 Stroke Rip!

Cons

    Best Uses

      Comments about Moto Tassinari - VForce4 System:

      This thing is worth every penny! The VForce System adds as much power and crisp throttle response as bolting on an exhaust system or using race fuel. One of the best upgrades you can get for a 2 stroke.

      • Was this a gift?:
      • No

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