Shimano XTR Rear Derailleur M970/971

Shimano XTR Rear Derailleur M970/971
Brand: Shimano
Manufacturer: Shimano

The XTR Top Normal is almost identical to the XTR Low Normal rear derailleur save the direction of spring tension . Top Normal is for those who prefer the spring direction to push the chain toward the smallest cog . Shimano believes this will have more appeal to gravity riders . The RD - M971 XTR rear derailleur operates with the Top Normal spring system . This is the common way derailleurs operate, with the spring forcing the chain onto the smaller cogs . The RD - M971 will work with Shimano's DCL, RFP, and SRAM's Shimano - compatible shifters . It will not work with Shimano Dual Control Levers . There are two sizes, the short cage (GS) and long cage (SGS), and the maximum cog size one can use is 34t, with a minimum of 11t . The maximum front difference is 22t . The GS has a 33t total capacity while the SGS has a 43t total capacity . The pulleys have sealed bearings . 196g (GS)/ 197g (SGS) the Low Normal version of the derailleur . Shimano believes this will appeal to cross - country riders who do lots of climbing . Having the spring work in reverse - pushing the chain toward the lowest gear, or largest cog - makes the shifts onto the larger cogs easier and faster . Good for those who sometimes unship their chain panic - shifting when grinding up steep hills .
Click here for more ...