Fission Delirium – 2026 OTB Open – Overstable Distance Driver
The 2026 OTB Open Fission Delirium takes Axiom’s fastest, most overstable distance driver and pairs it with a striking alien‑themed design from Green C Studio. Built for players who rely on power‑driven distance and wind‑fighting stability, the Delirium delivers uncompromising performance at maximum speed.

Type and Use
The Delirium is a high‑speed, overstable distance driver with a wide 24.5 mm rim, designed for full‑power throws, aggressive lines, and confident shot‑shaping in all conditions.

• High‑power throwers will appreciate its resistance to turn, even when pushed to top speed.
• Average‑power players will find it a reliable option for forced hyzers, headwind drives, and long flex shots.

Comparable in feel and intention to the MVP Dimension, the Delirium is built to produce long, forward‑carrying flights with a strong, dependable finish.

Flight Characteristics

• Speed 14.5 – Extreme high‑speed distance drive
• Glide 5 – Powerful carry for maximum range
• Turn -0.5 – Minimal high‑speed turn for controlled power
• Fade 3 – Strong, reliable fade to anchor the finish

Material & Grip
Crafted in Fission plastic, the Delirium provides:

• Micro‑bubble technology for lighter weights with maintained stability
• Enhanced GYRO® effect due to redistributed mass
• Excellent grip and feel at high speeds
• Premium durability for repeated max‑power throws

Fission blends offer increased glide and surprising workability for a disc in this speed class, making them ideal for long‑range performance.

Recommended For

• Power throwers seeking maximum distance
• Headwind drives and wind‑resistant lines
• Controlled flex shots
• Players looking for a reliable, overstable 14+ speed driver

Why Choose the Fission Delirium?

• Built for extreme power with minimal turn
• Ideal for windy conditions
• Premium Fission plastic enhances glide and control
• Bold 2026 OTB Open artwork from Green C Studio

Ultra-Lightweight Neutron Core

Fission® Microbubble Technology produces an ultralight core with evenly distributed and imperceptible weight-reduction microbubbles. The ultralight core allows an even higher GYRO® overmold density relative to the core, yet still remaining in the lighter weight classes — 145g to 175g in the Photon.

This produces an entirely new type of lightweight disc never before seen in the sport, and beyond the capability of any other manufacturer. Weight distribution, stability, and durability of prior “bubble” discs are all improved upon by Fission®. Skeptics of prior light or bubble plastics are in for a surprise, as Fission® brings advanced disc physics and true high-tech molding into the lightweight plastics arena.

• Ultra-lightweight core for added GYRO®
• Imperceptible micro-bubbles
• Improved durability over competition
• Light throwing weight with substantial feel

Specifications
Approved Date: May 23, 2019
Max Weight: 175.1gr
Diameter: 21.1cm
Height: 1.8cm
Rim Depth: 1.2cm
Rim Thickness: 2.5cm
Inside Rim Diameter: 16.0cm
Rim Depth / Diameter Ratio: 5.7%
Rim Configuration: 27.00
Flexibility: 11.14kg