Got the Halo Vapour 650b instead, very cheap and light for the money (under 1700g), also 11 speed.
Sadly, 42mm is less than a millimetre too big, it work but tyres never stay true mean it got some rub on the front (back is fine) 40mm G-One will fit, and 38mm Compass will.
@edscoble Yo, what wheelset are you building for your Saracen? What rims did you go for?