Derailleur gears a detent or ratchet mechanism which stops the gear lever, and hence the cable and the derailleur, after moving a specific distance with each press or pull. Indexed shifters require re-calibration when cables stretch and parts get damaged or swapped. On racing bicycles, 10-gear rear cassettes appeared in 2000, and 11-gear cassettes appeared in 2009. Most current mountain bicycles have either. Many modern, high-end mountain bikes have begun using entirely one chain ring drivetrains, with the industry constantly pushing the number of rear cogs up and up, as shown by SRAM's Eagle groupsets (1 by 12) and Rotor's recent 1
Influence of French on English in brackets, then comes its Old French origin in bold and the century of its introduction on the right. Influence of French on English There has been a long-standing influence of French on English, in terms of syntax, grammar, lexicon, spelling and pronunciation. Most French vocabulary that entered English occurred after the Norman conquest of England in 1066 and the establishment of a French-speaking administration. French became the language of the court, the administration and the elites for several centuries, until after the Hundred Years War. English has been constantly influenced by French from that time till present day. According