Description
Upgrade your mountain biking experience with the Diaz Suspension Design Runt Cartridge Fox – 36 and Z1 Bomber 160mm, the innovative dual chamber air spring cartridge engineered for superior performance and precise tuning. Designed to fit 2018+ Fox 36 forks with NA2 air spring and Marzocchi Z1 Bomber Air forks, this cartridge delivers a seamless blend of coil-like suppleness and mid-stroke support, elevating your trail riding to new heights.
Materials & Engineering Excellence
Constructed with high-grade, lightweight materials, the Runt Cartridge reduces weight by 1/2 lb compared to coil conversions, ensuring a responsive and agile ride without sacrificing durability. Its patent-pending design incorporates a secondary air chamber and valve, allowing for custom tunability of progression and bottom-out resistance, giving you the control to adapt your fork behavior to any terrain.
Performance & Components
Featuring a near-linear compression curve, the Runt Cartridge provides a coil-like feel for smooth, predictable suspension response. The built-in tunable progression enhances bottom-out resistance, preventing harsh impacts during aggressive descents. Its easy drop-in installation seamlessly replaces your existing air spring, maintaining compatibility with your fork’s air spring system for effortless upgrades.
Innovative Technology & Features
This cartridge’s dual chamber air spring offers infinite adjustability, enabling riders to fine-tune sag, rebound, and progression without complex modifications. Weighing only marginally more than tokens or spacers, it maintains your fork’s original air spring performance while adding a new level of customization. The Runt Cartridge is designed to work specifically with Fox 36 and Marzocchi Z1 Bomber forks, providing a reliable upgrade for aggressive trail riders and enduro athletes seeking precision and confidence.
Style & Use Case
Ideal for demanding trail riding, enduro racing, and mountain biking enthusiasts seeking reliable, high-performance suspension upgrades, the Diaz Runt Cartridge enhances your bike’s overall handling and comfort. Its sleek engineering and easy installation make it a must-have component for serious riders looking to optimize their fork’s responsiveness and support across diverse trail conditions.
Compatibility & Additional Details
– Compatibility: Fox 36 (2018+ models with NA2 air spring), Marzocchi Z1 Bomber Air forks, 160mm travel
– Not compatible with NA1 air spring, Z1 Coil forks, or Fox 36 E-Bike forks
Unlock your fork’s full potential with the Diaz Suspension Design Runt Cartridge Fox – the ultimate upgrade for riders demanding precise control, lightweight performance, and customizable suspension dynamics. Elevate your mountain biking experience today!
- Enhanced suspension performance with the Diaz Suspension Design Runt Cartridge Fox for Fox 36 and Z1 Bomber forks, featuring innovative dual chamber air spring technology.
- Constructed from lightweight, durable materials that are pound lighter than coil conversions, optimizing your bike’s weight and performance without sacrificing strength or reliability.
- Engineered with patent-pending design elements that deliver a near-linear compression curve, providing a coil-like feel, improved mid-stroke support, and customizable bottom-out resistance through adjustable secondary air chambers.
- Compatible exclusively with 2018+ Fox 36 with NA2 air spring and Marzocchi Z1 Bomber forks, ensuring seamless integration and maintaining your fork’s air spring compatibility for reliable, consistent performance.
- Perfect for aggressive trail riding and enduro, this easy-to-install drop-in cartridge enhances suspension responsiveness, tunability, and confidence on demanding terrains without adding unnecessary weight or complexity.
| Model Name | Runt RU36-06 |
| Compatibility | Fox 36 and Marzocchi Z1 Bomber 160mm |






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