2G-Namd Flex Force
2G-Namd Flex Force is a highly elastic graphite material that allows the frame to flex and snap back quickly during impact. It is designed to support ball pocketing and spin potential while retaining a responsive feel.
The Yonex VCORE 100D in Ruby Red is for players who like to attack with topspin but want the ball to remain predictable as swing speed increases. Although its head is the same 100 square inches as the standard VCORE 100, this is a distinctly different racquet. A nominal 305 g frame and the denser 16/20 string pattern give it a more controlled identity for players who already manage direction and depth with confidence.
Spin with a more deliberate response
The tighter pattern makes sense for players who mix heavy rotation with flatter, more penetrating shots and prefer a measured launch. A 315 mm balance helps keep preparation manageable, although the additional mass still asks for sound timing. This is a frame for developing an attacking plan, not a shortcut for someone still learning the basic swing.
Yonex reshaped the upper hoop and the grommet system in the eighth-generation VCORE to encourage string movement. ISOMETRIC, 2G-Namd Flex Force, Servo Filter and VDM support its broader design goals of spin, stability and connected feel. Players who find the regular 100 a little too lively may prefer this more disciplined interpretation of the VCORE formula.
Technologies
Aero Trench
A recessed upper-grommet channel is shaped to reduce aerodynamic drag. Within VCORE it is designed to help accelerate the racquet head and support spin, without guaranteeing a specific result for every player.
ISOMETRIC
Yonex ISOMETRIC uses a more squared-off head geometry that optimizes main and cross string intersections. Yonex reports an approximately 7% larger sweet spot than a comparable conventional round head, supporting a more forgiving response when contact is off centre.
LINER TECH
LINER TECH uses straighter string-entry holes so the main strings can move more freely on impact. The design supports ball pocketing and a more forgiving stringbed response, including on off-centre hits.
Servo Filter
SERVO FILTER is an elastic film integrated between graphite layers in the frame. It is designed to reduce unwanted vibrations while preserving useful feedback to the hand for a more precise impact feel.
VDM
VDM (Vibration Dampening Mesh) is a flexible mesh wrapped around the graphite inside the grip. It filters unwanted impact vibrations to provide a smoother, more comfortable feel in the hand.
Beam Width (mm)
24-26-23
Generation
8th generation (2026)
Grip Size
Grip 2
Head Size (cm²)
645
Head Size (in²)
100
Length (in)
27
Length (mm)
686
Level of Play
Intermediate, Advanced
Recommended Tension (kg)
20-27
Recommended Tension (lb)
45-60
Stringing
Unstrung
Unstrung Balance (mm)
315
Unstrung Weight (g)
305
Sport
Tennis
Product Type
Tennis racquet
Series
VCORE
Colour
Red
Composition
Graphite
String Pattern
16/20
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