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All Terrain Tire
Off-road tires (Off-road tyre) are a category of vehicle tires that use deep tread to provide more traction on unpaved surfaces such as loose dirt, mud, sand, or gravel. Compared to ice or snow tires, they lack studs but contain deeper and wider grooves meant to help the tread sink into mud or gravel surfaces. Design Off-road tires are typically radials with thick, deep tread. On dirt surfaces, the exposed edges of the tread dig into soft ground to give more traction than rolling friction alone, analogous to the traction provided by cleated shoes. These off-road tires provide their maximum grip on loose surfaces, but on paved surfaces the smaller contact patch affords less traction as compared to street tires. Tires with less aggressive knobs (smaller knobs and the shape of the tread cross-section closer to that of street tires) can provide a compromise, giving less grip off-road, but a grip closer to that of street tires on paved surfaces. Such tires are useful for enduro an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Noise, Vibration, And Harshness
Noise, vibration, and harshness (NVH), also known as noise and vibration (N&V), is the study and modification of the noise and vibration characteristics of vehicles, particularly cars and trucks. While noise and vibration can be readily measured, wikt:harshness, harshness is a subjective quality, and is measured either via jury evaluations, or with analytical tools that can provide results reflecting human subjective impressions. The latter tools belong to the field psychoacoustics. Interior NVH deals with noise and vibration experienced by the occupants of the cabin (truck), cabin, while exterior NVH is largely concerned with the noise radiated by the vehicle, and includes drive-by noise testing. NVH is mostly engineering, but often objective measurements fail to predict or correlate well with the subjective impression on human observers. For example, although the ear's response at moderate noise levels is approximated by A-weighting, two different noises with the same A-weighted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Off-roading
Off-roading is the act of driving or riding in a vehicle on unpaved surfaces such as sand, dirt, gravel, riverbeds, mud, snow, rocks, or other natural terrain. Off-roading ranges from casual drives with regular vehicles to competitive events with customized vehicles and skilled drivers. Off-road vehicle Off-road vehicles are either capable of or specifically developed for off-road driving. These vehicles often have features designed specifically for use in off-road conditions such as suspension lifts, off-road tires, skid plates, vehicle snorkel, snorkels, roll cages, or strengthened drivetrains. Types of recreational off-roading Dune bashing Dune bashing is a specific form of off-roading performed on Dune, sand dunes. Dune buggy, Dune Buggies, sport utility vehicle, Sport-utility vehicles, and All-terrain vehicle, ATVs are often used. Vehicles driven on sand dunes are often equipped with a roll cage for safety in the case of an Vehicle rollover, overturn. The tire pres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Off-road Vehicles
An off-road vehicle (ORV), also known as an off-highway vehicle (OHV), overland vehicle or adventure vehicle, is a type of transportation specifically engineered to navigate unpaved roads and surfaces. These include trails, forest roads, and other low-traction terrains. Off-road vehicles are widely used in various contexts, from recreational activities to practical applications like agriculture and construction. Events such as the annual Dakar Rally, which spans multiple countries and challenges participants with diverse and extreme terrains, have brought significant attention to these vehicles. History One of the earliest modified off-road vehicles was the Kégresse track, a system for modifying cars developed by Adolphe Kégresse while working for Tsar Nicholas II of Russia between 1906 and 1916. The system employed a caterpillar track with a flexible belt instead of interlocking metal segments, which could be fitted to a conventional vehicle, turning it into a half-track su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paddle Tire
Paddle tires are mainly used on off-road vehicles, specifically designed for use in sand and mud. They consist of a smooth tire core which has a series of large rubber cups (or paddles) attached to it. The volume inside of a paddle is much larger than the void of a knobby tire, so it is unlikely to clog up with sand/mud. A street legal mud tire is a more or less normal tire, but with extra large gaps or "voids" between each tread block (called "lugs") to allow centrifugal force to "self-clean" or fling the mud out of the gap. Smaller gaps trap the mud in between the tire lugs, which turns the tire into something resembling a " slick" with no tread at all, which will have no traction in mud. A paddle tire is an even more extreme version of this, optimized for mud or sand. The paddle provides superior traction in the sand, in part because the paddles dig into the sand and push off from the buried sand, not just the surface, and in mud, the gigantic "voids" give no place for mud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motorcycle Tyre
A motorcycle tyre (spelt tire in American English) is the outer part of motorcycle wheel, attached to the rim (wheel), rim, providing traction (engineering), traction, resisting wear, absorbing surface irregularities, and allowing the motorcycle to turn via countersteering. The two tyres' contact patches are the motorcycle's connection to the ground, and so are fundamental to the motorcycle's suspension (motorcycle), suspension behaviour, and critically affect Motorcycle safety, safety, Brake, braking, fuel economy in automobiles, fuel economy, Roadway noise, noise, and rider comfort. History The history of motorcycle tyres is a clear progression of steady improvement in grip, allowing better acceleration, braking, and turning, along with improved comfort, safety, durability, and reliability. This progression has generally meant a steady increase in tyre width, so much so that Kevin Cameron (journalist), Kevin Cameron noted the assumption among riders that "bigger must be better in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bicycle Tire
A bicycle tire is a tire that fits on the Bicycle wheel, wheel of a bicycle or similar vehicle. These tires may also be used on tricycles, wheelchairs, and handcycles, frequently for Wheelchair racing, racing. Bicycle tires provide an important source of Bicycle suspension, suspension, generate the lateral forces necessary for Bicycle and motorcycle dynamics#Balance, balancing and Bicycle and motorcycle dynamics#Turning, turning, and generate the longitudinal forces necessary for Vehicle propulsion, propulsion and Bicycle brake systems, braking. Although the use of a pneumatic tire greatly reduces rolling resistance compared to the use of a rigid wheel or solid tire, the tires are still typically the second largest source, after Drag (physics), wind resistance (air drag), of power consumption on a level road. The modern detachable pneumatic bicycle tire contributed to the popularity and eventual dominance of the safety bicycle. Bicycle tires are also used on unicycles, tricyc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silt
Silt is granular material of a size between sand and clay and composed mostly of broken grains of quartz. Silt may occur as a soil (often mixed with sand or clay) or as sediment mixed in suspension (chemistry), suspension with water. Silt usually has a floury feel when dry, and lacks Plasticity (physics), plasticity when wet. Silt can also be felt by the tongue as granular when placed on the front teeth (even when mixed with clay particles). Silt is a common material, making up 45% of average modern mud. It is found in many river deltas and as wind-deposited accumulations, particularly in central Asia, north China, and North America. It is produced in both very hot climates (through such processes as collisions of quartz grains in dust storms) and very cold climates (through such processes as glacial grinding of quartz grains.) Loess is soil rich in silt which makes up some of the most fertile agricultural land on Earth. However, silt is very vulnerable to erosion, and it has poo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baja 1000
The Baja 1000 is an annual Mexican off-road motorsport race held on the Baja California Peninsula, with a course of up to about 850 or more miles. It is one of the most prestigious off-road races in the world, having attracted competitors from six continents. The race was founded by Ed Pearlman in 1967 and is sanctioned by SCORE International. The race is the final round of a four-race annual series, which also includes the San Felipe 250, the Baja 400 and the Baja 500. The 2017 Baja 1000 marked the 50th anniversary of the race. The Baja 1000 has various types of classes, including Trophy trucks, Dirtbikes, Truggys, Side-by-sides, Baja Bugs and Buggies, all competing at the same time on the same course. The course has remained relatively the same over the years, with about every other event being either a point-to-point race from Ensenada to La Paz or a loop race starting and finishing in Ensenada. The name of the event can be misleading, as the mileage varies for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulldust
Bulldust or bull dust is a fine, soft and powdery red aeolian dust that is common across Australia, especially in the Outback and desert. Bulldust is a type of fugitive dust that when disturbed can have dangerous effects. Bulldust is common on remote roads, especially in the far north of Australia where the wet and dry season can cause the roads to either be boggy or very dry. Bulldust is also an Australian colloquial term and euphemism. Both meanings of the term originated in the 1920s. Causes and general description Most soils in Australia have no structure, and their surface often contains medium to high amounts of fine sand. Because of the lack of structure when compressed or disturbed, bulldust will form. These disturbances can be anything that breaks up the track surface, such as a car or vehicle driving along a road, or a pack of animals such as camels running through the desert. Once the road surface has been disturbed, the bulldust particles released into the air can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desert Racing
Desert racing is the act of racing through the desert in a two- or four-wheeled off-road vehicle. Races, which generally consist of two or more loops around a course covering up to , can take the form of Hare and Hound or Hare scramble style events, and are often laid out over a long and harsh track through relatively barren terrain. Point-to-point–style races, including the famous Mint 400 and Baja 1000, attract nationally ranked and celebrity drivers. This type of racing tests the endurance and capabilities of racer and machine, and while organized clubs or teams sometimes field multiple sponsored riders for particular events, desert racing in its purest form is largely an individual endeavor. Winning racers accrue points to advance their rank and placement in future contests. Desert racing vehicles, which include rugged enduro-style motorcycle, four wheeled all-terrain vehicles, trucks (like Group T4), pickup trucks (like Trophy Trucks), and dune buggies, have speciali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rock Crawling
Rock crawling is an extreme form of Off-roading, off-road driving using specialized vehicles ranging from stock to highly modified, to overcome obstacles. In rock crawling, drivers typically drive highly modified four-wheel-drive vehicles such as trucks, Jeeps, and "Buggy (automobile), buggies" over very harsh terrain. Driving locations include boulders, mountain foothills, rock piles, mountain trails, etc. Rock crawling is about slow-speed, careful and precise driving, and high torque generated through large gear reductions (100:1 or more) in the vehicle's drivetrain. Rock crawlers often drive up, down and across obstacles that appear impassable. Rock crawling competitions range from local events to national series. These consist of long courses with obstacles set up with gates, similar to a slalom ski race. Rock crawling basics Vehicles Vehicles commonly used include Jeep (the Chrysler and the Mitsubishi Varieties), Lada Niva, BAW, Nissan Patrol, Toyota Hilux, Toyota Land ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
