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Tire wars are a controversial practice: on the one hand, they promote technical innovation, forcing tire manufacturers to "push the limits" of their tire manufacture. On the other hand, when all event competitors plan to stretch their tires' performance envelope , the event risks widespread tire failures that can reduce driver safety; such a ...
The Cars We Love to Hate by Eric Peters. Dan Neil wrote of the 1980 small block Corvette, "[California state regs] required that the barely adequate 350 cu in (5.7 L) small-block in the 1980 Corvette be replaced with a wholly inadequate 305 V8, putting out 180 hp of pure shame.
Off-road cycle tires, colloquially called knobbies, [4] may be found on motocross and enduro motorcycles, ATVs, and mountain bikes. [1] Tires for single-track vehicles and ATVs have a curved profile such that some tread only contacts the ground during turning. Depending on the model of tire, an off-road capable tire may or may not be approved ...
BMW patented a spoked wheel that cross ran the spokes onto the outside of the rim, allowing the use of tubeless tires. [5]: 31 By the late 2000s, a number of materials and designs in addition to traditional spoked wheels were available, including cast, spun or forged aluminum; cast or forged magnesium; and single-layup or composite carbon fiber.
The 26-inch wheel size initially used in mountain biking has all but died off at the top level of cross-country racing, with 29″ wheels becoming the norm and 650b wheels being used occasionally. 650b wheels are 584 mm diameter wheels, and approximately 27.5″ with a mounted tire, hence their more common name, " 27.5 inch wheels ."
A variant, Nordic cross skating [8] is also called Nordic inline skating or Off-road skating or Cross-country skating or Nordic blading. This sport activity (similar to roller skiing) combines snow cross-country skiing and inline skating. Typically uses specialized inline skates with two big all-terrain wheels (4-6 inch diameter, typically ...
From the beginning of the 2019 season the cup was once again split, with the FIA World Cup for Cross Country Bajas being held alongside the competition for "baja" style rally raids. [2] From 2022, the cup merged with the FIM Cross-Country Rallies World Championship to become the World Rally-Raid Championship.
Cross Country races vary in length and terrain. They are most often run at 5K, 6000 meters, 8000 meters, 10K, and 12,000 meters, though many races for children are shorter. During training season, professional runners can run anywhere from 40 to 120 miles each week, depending on preference, training method, and ability to remain healthy.