Red has two versions of the crankset - the older set uses the regular 5-bolt pattern, while the newer on has the "offset" pattern with one of the bolts hidden underneath the crank (arm). The "Yaw" version uses the newer pattern. You will know the newer one by looking if the protruding pin (for avoiding chain suck) is aligned with one of the holes.


New version (hidden bolt)

Old version (non-hidden bolt)


New hidden bolt crankset (the 5th bolt is underneath the arm)

The shifting pins and ramp patterns are offset on the new version relative to the old one so shifting if affected if you install one on the other.