Modern Designs
In the 2000s, mountain bikes often use frames designed for off-road use, which are strengthened to withstand jumps and impacts and which use a geometry that allows for much more spirited riding over obstacles like logs, rocks, and ramps. In the 2000s, mountain bikes often have either 21, 24, or 27 speeds, with 3 gears in the front and 7, 8, or 9 gears at the rear wheel. Thirty-speed mountain bikes have previously been unworkable, as the mud-shedding capabilities of a ten-speed cassette, and the intricacies of a ten-speed rear derailleur have never been suitable. However, many pro-level mountain bikers have taken to using a narrower 10-speed road chain with a 9-speed setup in an effort to reduce the weight of their bike. In early 2009, component group SRAM announced their release of their XX groupset, which uses a two-speed front derailleur, and a ten-speed rear derailleur and cassette, similar to that of a road bike. Mud-shedding capabilities of their ten-speed XX cassette are made suitable for MTB use by extensive CNC machining of the cassette. Due to the time and cost involved in such a product, they were only aimed at top-end XC-racers. However, 10-speed has become the norm by 2011 and the market leader Shimano even offers its budget groupset "Alivio" in a 10-speed version.
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Famous quotes containing the words modern and/or designs:
“Families have always been in flux and often in crisis; they have never lived up to nostalgic notions about “the way things used to be.” But that doesn’t mean the malaise and anxiety people feel about modern families are delusions, that everything would be fine if we would only realize that the past was not all it’s cracked up to be. . . . Even if things were not always right in families of the past, it seems clear that some things have newly gone wrong.”
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“I have no designs on society, or nature, or God. I am simply what I am, or I begin to be that. I live in the present. I only remember the past, and anticipate the future. I love to live.”
—Henry David Thoreau (1817–1862)