The set came with a very trick set of ‘Pedal End Boots’, which go over the end of the crank arms to protect them. I am always bashing my pedals and crank arms into rocks, so I really like these, not only for the protection they offered the crank arms, but the subtle cushion, they provided to me on impact with rocks. I am willing to put up with the small weight increase (16g) for these on any bike.
The CNC 7075 aluminum chainrings (22/32/44) shifted quite nicely using their patented S.H.I.F.T. technology, and when I did miss a shift once, the hollow arms made a unique ping noise. Do they shift as well as XTR? Close, but no, they are not yet at that magic XTR shifting level. The cranks did not come with the newer turbine shifting, so I can’t comment on its shifting abilities.
While out riding I really noticed how stiff these cranks are, they give me instant power access and there was no noticeable slop in the system from them. I like to do a lot of slow speed and hard torque moves on technical terrain, which really puts a lot of stress into the drivetrain system, and these cranks were incredible in that realm. I found myself moving down one gear on some of my rides due to the increased ability to apply power to the ground. They offered fast acceleration and provided a snappier feel while cranking and mashing on the pedals. I could make some ugly technical climbs that I haven’t been able to do before or at least could now do with better style.
Weight Specs(175mm size):
Pedal end boots 16.3 g
Right arm, spindle, chainrings and bolts 448.6 g
Left arm 171.6 g
Bottom bracket 112.8 g
Pedals washers 3.4 g
Total 733 g
Total w/ extra’s 752.7 g