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The SRAM DualDrive system uses a standard 8 or 9-speed cogset mounted on a three-speed internally geared hub, offering a similar gear range to a bicycle with a cogset and triple chainrings. Less common is the use of a double or triple chainring in conjunction with an internally geared hub, extending the gear range without having to fit multiple ...
SRAM LLC is a privately owned bicycle component manufacturer based in Chicago, Illinois, United States, founded in 1987. [2] SRAM is an acronym comprising the names of its founders. [2] The company produces a range of cycling components, including Grip Shift, and separate gravel, road, and mountain drivetrains from 7 to 13 speed.
Replacement chainrings must be chosen with a bolt-hole count and spacing that matches the spider. Chainrings designed for use with multi-chainring crank arms may have ramps or pins to aid in shifting. The middle chainring, in the case of a triple crankset, usually has the most shaping to aid in shifting up and down.
The 14-speed Rohloff Speedhub hub gear, introduced in 1998, has a range exceeding 5 to 1, and is thus comparable in range to 24, 27 and 30-speed derailleur systems (with 3×8, 3×9 and 3×10 cogs front and rear), since the latter have three overlapping ranges often with only about 14 distinct gears. As there is no overlap with the Speedhub, the ...
Three-speed sliding-gear non-synchronous transmission Non-synchronous "crash" gearbox; commonly used today in semi-trucks and tractors, and formerly used in automobiles pre-1950s A non-synchronous transmission , also called a crash gearbox , is a form of manual transmission based on gears that do not use synchronizing mechanisms .
[2] [3] The Japanese market had the fewest titles supported at launch with only 12 games. [4] Microsoft's final update to the list of backward compatible titles was in November 2007 bringing the final total to 462 Xbox games. [5] [6] In order to use the backwards compatibility feature on Xbox 360 a hard drive is required. [2]
Biopace triple crankset, a non-round crankset The Biopace logo on a chainring. Biopace is a tradename for a type of ovoid bicycle chain ring manufactured by Shimano from 1983 to 1993 [1] [2] The design was intended to help overcome the "dead zone" where the crank arms are vertical and riders have little mechanical advantage.
SRAM will hold its data permanently in the presence of power, while data in DRAM decays in seconds and thus must be periodically refreshed. SRAM is faster than DRAM but it is more expensive in terms of silicon area and cost. Typically, SRAM is used for the cache and internal registers of a CPU while DRAM is used for a computer's main memory.