Mtb

MTB most commonly denotes mountain biking or a mountain bike, a bicycle designed for off-road riding on rough terrain. The term also appears in medical contexts as an abbreviation related to Mycobacterium tuberculosis, though more precise terms are typically used in scientific writing.

A mountain bike is built to withstand rough trails. Core features include a reinforced frame, wide knobby tires, and efficient braking and gearing. Suspension is a distinguishing factor; hardtails have front suspension only, while full-suspension bikes employ rear shocks to absorb impacts. Wheel sizes have evolved from 26 inches to 27.5 and 29 inches, with 29ers favored for stability and obstacle clearance. Frame materials range from aluminum to carbon fiber and steel, balancing strength and weight.

Popular MTB disciplines include cross-country (XC), trail riding, enduro, downhill (DH), and freeride. Each emphasizes different terrain, suspension travel, and rider weight targets. In recent years, electric mountain bikes (e-MTBs) with motor assist have expanded the reach of the sport to new audiences, while preserving core MTB techniques.

Components and technology commonly seen on modern MTBs include hydraulic disc brakes, wide-range drivetrains such as 1x setups, and dropper seat posts for on-trail geometry changes. Tubeless tires and advanced suspension tuning are also widespread, with variations tailored to riding style and terrain. Riders commonly choose from a variety of frame materials and build configurations to suit performance, durability, and budget.

Competition and community: MTB features in international competition overseen by the UCI, including the Mountain Bike World Cup and World Championships, with Olympic cross-country racing. National federations organize events and licensing. Safety and etiquette emphasize helmet use, trail courtesy, and regular bike maintenance.