In case anybody is curious about the new 2014 MTB Cannondale Hollowgram SiSl2 cranks, I just got my new bike a couple of days ago with these cranks. They are redesigned. Below is a bunch of pictures showing the new cranks.
The spindle is now 137mm; 5mm longer than the previous version of 132mm. Just like the road version that came out last year the spindle is 5mm longer (road version went from 104mm to 109mm). Also notice that there is no lip for the nondrive side as in previous versions.
The ends of the spindle are drilled out for weight savings.
98g for the spindle
New spindle bolts. They are shorter than previous versions and have 12 point engagement instead of 6.
The bearing shields are also redesigned.
Inner side of the bearing shield.
Nondrive side spacer. Previous versions of the hollowgrams did not have a spacer on the nondrive side. This spacer is now needed since the lip has been removed from the spindle. Notice it is tapered on the inside. This is to accommodate the wave washer and shims which were on the drive side previously.
Nondrive side spacer is 19mm
Nondrive side spacer with wave washer, shims, and bearing shield.
Drive side spacer
Drive side spacer is 14mm
Complete bottom bracket without bearings is 136g
Hollowgram SiSl2 Cranks
Machined differently here for weight savings.
Crank ends are tapered. This saves a few grams and gives better clearance with chainstays.
Mine came with 38/24 rings with 104 bolt pattern spider. There are many other spiders available including 76mm Sram XX1.
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