Shimano's Deore XT Shadow + Rear Derailleur is perfect for today's aggressive, all-mountain riding. The radical design means that the Shadow is super-low profile; it barely protrudes more than the bike's rear stays. The Plus part is a lever-actuated clutch that drastically reduces chain slap for less noise and better gear engagement. Plus, a stronger spring keeps the body more stable when blasting through technical terrain and yields a firm, crisp shifting feel. The redesigned mount keeps the derailleur body from contacting your chainstay and reduces chatter so you just concentrate on the best line.
Upgraded my older XTR Shadow derailleur (no clutch spring) to this XT Shadow Plus design so I can eliminate chain slap, and this does the job. It is a bit heavier than my previous derailleur but the few extra grams is worth having a chain that stays put!
Bottom LineNo, I would not recommend this to a friend