* Super light.
* CNC machine hollow 6/4 titanium axle for ISIS drive.
* Titanium nitride coated axle.
* MegaQuad: 2 Ã double-row, deep-groove, full-complement, sealed cartridge bearing.
* New improved external water seals.
* AL7075 alloy crank bolts (M14)
* Weight: 205 g.