90/100-21 Maxxis M7311 Maxxcross SI, 57M TT

Proven in the Grand National Cross Country Series, the Maxxcross SI is a trusted choice for GNCC and WORCS pros. Its advanced construction delivers outstanding traction and durability in soft-to-intermediate terrain, while anti-flex knob bridges provide straight-line stability and confident cornering grip. Designed with a race-proven compound, this tire ensures consistent performance on both motocross tracks and demanding off-road trails.

Specifications:

• Part Number: TM89947000
• Position: Front
• Size: 90/100-21
• Load Speed Rating: 57M TT
• Overall Diameter (in): 28.1
• Section Width (in): 3.90
• Max Psi: 32
• Rim Size (in): 1.85X 21
• Tread Depth (in): 15/32