Bicycle BMX Tire (20x2.125, 57-406, Off-Road, Mud)

Wide off-road bicycle tire 20x2.125 (ETRTO 57-406) with aggressive "Off-Road" mud tread is designed for extreme operating conditions, off-road riding, mud, sand, and soft soil. The pronounced tread with massive side lugs provides maximum grip, preventing slipping and wheel drift during aggressive maneuvering.

Product Configuration Options:

• Tire only: Replacement for a worn tire (inner tube purchased separately if needed).
• Set (Tire + Inner Tube 20x2.125): A ready-to-use repair kit for quick replacement of both tire and tube at once.

How does it differ from other 20-inch rim tires?

• Aggressive mud tread (Off-Road): Unlike the "Narodny" road slick or the universal "Herringbone" (Yolka) pattern, this tread features deep lugs and increased spacing between studs. This allows the tire to self-clean from sticking mud and wet soil while in motion.
• Maximum profile and volume (2.125" / 57 mm): The increased air volume in the tire softly dampens heavy impacts, protecting the rim from damage when jumping off curbs or riding over large rocks and tree roots.

What happens if you install "Off-Road" instead of a road tire?

• Pros: Excellent performance on sand, forest trails, mud, and snow; confident braking on dirt roads and wet grass.
• Cons: On smooth asphalt, the knobby tread will produce a characteristic hum and have slightly higher rolling resistance (requiring a bit more effort when pedaling) compared to slick tires.

Compatibility and Application:

• Bicycles: Stunt and youth BMX, folding and city bikes (Aist, Desna, Salyut, Stels, Ardis, Formula, Pride, Discovery) used in rural and off-road areas.
• Surface type: Forest and field roads, off-road, sand, mud, crushed stone, snow, gravel.

Technical Specifications:

Package Contents:

1. 20x2.125 "Off-Road" tire (selected configuration — with or without inner tube) — 1 pc.

Pro tip: When installing a 20x2.125 knobby tire on classic "Aist" or "Desna" bicycles, ensure that the side lugs do not rub against the chain during shifting or the fender stays.