VERTEX 05 GEO NEWGIZA

The key differences are shape and face material. The standard Vertex 05 uses X-Tend Carbon 12K — a more open, elastic weave that returns energy faster and adds free pace on attacking shots. The Geo Newgiza uses the tighter 3K weave, which is stiffer and more precise but requires your swing to generate the pace rather than leaning on the face's spring. The Geometric Shape also widens the frame to 541cm², giving the Geo a larger effective hitting zone — useful if your footwork isn't always perfect on overheads. If you prioritise raw explosive power, the 12K face wins. If you want more directional control and a bigger margin on off-centre hits, the Geo Newgiza makes the better case.

They solve different problems. The Hack 05 is a diamond — high balance, maximum head weight, built specifically for left-side players who finish points with overhead smashes and bandejas. It has a smaller sweet spot and demands consistent technique on every ball. The Vertex 05 Geo is a teardrop with high balance and a widened frame, which gives it more versatility — you can play all-court without the Hack's penalty on defensive exchanges. If you play predominantly on the left and your overhead is a genuine weapon, the Hack is more purpose-built. If you move between sides, defend and attack in the same session, or your footwork means your contact point varies, the Geo Newgiza is the safer and more productive choice.

Cautiously, no. The combination of a stiff X-Tend Carbon 3K face, CarbonTube frame, and high balance creates a high-vibration profile at impact — three of the main risk factors for lateral epicondylitis. Bullpadel has mitigated this with VibraDrive (rubber insert in the handle that absorbs shock before it reaches the palm) and the Hesacore grip (which reduces the grip force you need to hold the racket), and the MultiEVA inner layer softens some vibration in the core. These features may reduce discomfort during play, but they don't change the fundamental stiffness of the construction. If you're returning from a tennis elbow injury or managing ongoing arm sensitivity, the Vertex 05 Light or a softer-core, fiberglass-face option from Bullpadel's range will carry significantly lower risk.

A standard teardrop widens gradually toward the upper third of the face. The Geometric Shape (GeoShape) breaks that curve and adds extra material at the 2 and 10 o'clock positions — the frame is literally wider at those clock points than a conventional mould. The result is a playing surface of 541cm², which is larger than Bullpadel's standard Vertex teardrops. In practice, the benefit is most felt on overheads where your contact point drifts slightly wide — shots that would clip the edge of a standard frame stay on the hitting surface of the Geo. The trade-off is that the wider frame shifts more weight toward the head (contributing to the high balance), so the racket is slightly less manoeuvrable in fast net exchanges than a narrower-frame teardrop at the same weight.

CustomWeight is Bullpadel's modular weight adjustment system — you can add 3, 6, or 9 grams via weighted inserts that redistribute toward the top of the head, increasing the high balance further. The Geo Newgiza already sits at high balance out of the box, so adding weight will push the racket further toward head-heavy territory: more momentum on smashes and overheads, but slower through the air on reactive volleys and tighter exchanges. The practical recommendation: start without the additional weight inserts for at least a month. If your overhead feels like it's lacking mass behind it and your reactive net play is consistently good, try 3g first. Adding the full 9g is only advisable for physically strong players with an established left-side attacking game who specifically want maximum inertia on finishing shots.