A mountain bicycle or mountain bicycle (shortened Mtn Bike, MTB; or ATB, for all-terrain bike) is a bike developed for off-road cycling. Mtb share similarities with other bikes, however integrate functions designed to boost sturdiness and efficiency in rough surface. These usually consist of suspension on the frame and fork, large knobby tires, more resilient sturdy wheels, more effective brakes, and lower gear ratios needed for steep grades with poor traction.
Mtb are normally ridden on mountain tracks, fire roads, logging roadways, single tracks and other unpaved environments. These kinds of terrain commonly include rocks, washouts, ruts, loose sand, loose gravel, roots, and high grades (both inclines and declines). Mountain bikes are built to manage this surface and the challenges that are discovered in it like logs, vertical drop offs, and smaller boulders.
Since the advancement of the sport in the 1970s lots of brand-new subtypes of mountain biking have developed, such as cross-country (XC) cycling, all-day endurance cycling, Freeride-biking, downhill mountain cycling, and a range of track and slalom competitions. Each of these location different needs on the bike requiring different styles for ideal efficiency. MTB advancement has actually consisted of a boost in suspension, typically approximately 8" or 203mm, and gearing, as much as 30 speeds, to help with both climbing and fast descents. Nevertheless, advancements in sprocket design has just recently resulted in the "1x (noticable one by)" trend, simplifying the tailoring to one Chainring/Sprocket in the front and numerous gears on the back of the drive train, more typically, 9, 10 or 11
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