Description
High-Speed Gravity Performance for Downhill and Enduro
The iXS Attack FSX Tire is a high-performance gravity tire designed for riders who demand speed, control, and confidence on challenging terrain. Developed with input from 5-time Downhill World Champion Aaron Gwin, the Attack FSX combines modern tire technology with a versatile tread design suitable for both downhill and enduro riding.
Built to perform across dry and wet conditions, the Attack FSX delivers reliable grip while maintaining fast rolling characteristics. Its robust construction makes it an excellent choice for aggressive rear-wheel use, especially when paired with a dedicated gravity tire on the front.
Available in both 27.5″ and 29″ sizes, with a wide 2.50″ profile, the Attack FSX can be mounted on either the front or rear wheel depending on rider preference and terrain. Whether you’re racing downhill, riding bike parks, or exploring technical enduro trails, this tire offers the durability and control needed for high-speed adventures.
Specifications
| Component | Details |
|---|---|
| Intended Use | Downhill & Enduro |
| Wheel Size | 27.5″ / 29″ |
| Tire Width | 2.50″ |
| ETRTO Size | 64-584 |
| Weight | 1370 g |
| Compound | TOP40 |
| Casing | DH Core |
| TPI | 72 |
| Recommended Rim Width | 30–35 mm |
| Tubeless Ready | Yes |
Technology
| Technology | Description |
|---|---|
| DH Core | Reinforced downhill casing designed for maximum durability, impact resistance, and reliability during aggressive riding. |
| TOP40 Compound | High-performance rubber compound optimized for grip, control, and long-lasting performance. |
Key Features
- Developed with Aaron Gwin for gravity-focused performance
- Designed for downhill and enduro riding
- Excellent grip in dry and wet conditions
- Fast rolling characteristics for high-speed riding
- Strong DH Core casing for aggressive terrain
- Works perfectly as a rear tire with other gravity-focused front tires
- Available in 27.5″ and 29″ versions
- Can be used on both front and rear wheels
- Tubeless-ready construction
- Ideal for downhill racing, bike parks, and technical enduro trails



