* TRP R&D worked closely with Aaron Gwin and his mechanic John Hall to build an advanced DH derailleur* The derailleur is true G-Spec, utilizing carbon fiber for the outer parallelogram link and pulley cage; offering an adjustable Ratchet Clutch; and adding features born from competitionÛÓthe Hall Lock, a B-Knuckle lock that reduces noise and increases shifting stability* TRPÛªs new DH7 shifter is molded from carbon fiber and features TRPÛªs linear release action for upshifting to higher gears. * This unique ergonomic and mechanism allows the cable release lever to more closely mimic the motion of a riderÛªs thumb producing super-fast and super-precise shifts out of the starting gate, while maintaining a tight grip on the handlebar.