The Battlecross X31 is the newest member of the Battlecross X-series, extending intermediate-terrain coverage into a broader range of big-bike sizes, picking up where the X30 leaves off. It adds Bunker Groove technology, which improves casing flex to enhance traction in harder terrain while adding biting edges for softer conditions, plus Cooling Fins to keep tire feel consistent through a moto. Non-DOT, bias-ply construction for MX racing use only.
- Bunker Groove technology improves traction in both harder and softer terrain vs. Battlecross X30 (Bridgestone internal test)
- Cooling Fins promote consistent traction/feel and minimize inflation-pressure gain under continuous use
- Symmetric front Castle Block design for braking stability on soft/slippery surfaces
- Asymmetric rear Castle Block tread for cornering traction
- Compares to Dunlop MX3S/MX53, Michelin StarCross 6 Medium/Hard, Pirelli Scorpion MX Mid Soft 32 per Bridgestone
Specifications
| Part Number | 13852 |
|---|---|
| Use Case | Motocross - intermediate terrain, big-bike sizes, non-DOT |
| Construction | Bias-ply |
| Tread Pattern | Bunker Groove technology with Cooling Fins and Castle Block |
| Tube or Tubeless | Tube Required |
| Load & Speed Rating | 57M |
| Rim Width Range | 1.85-2.75 in |
| Recommended Pressure | 10-15 psi |
Verified from Garamoto’s catalog & fitment data.















