The frame needs a 12mm TA with a thread of 1mm (Ridley article code QRET124ZA046)

The uses the SRAM Universal Derailleur Hanger (UDH). This means you will find easily a replacement hanger wherever you are as it is a standardised hanger (R...

We use a BB86 press-fit bottom bracket standard on the Fenix SLiC, Fenix Disc, Kanzo Adventure, Kanzo Fast, Grifn, X-Night RS

The offset of the seatpost is 6mm. The aero seatpost is used on the Noah Fast, Noah, Falcn RS, X-Night RS frame platforms.

The integrated seatpost clamp (Ridley article code SPCAER4ZA008) is designed for the aero seatpost of the Falcn RS and the X-Night RS

The maximum torque to fix the seatpost clamp is 10Nm, like mentionned on the clamp

The X-Night RS uses a headset with a 1-1/8" upper bearing and 1-1/4" lower bearing ( IS42/28.6 | IS47/33 )

The tire clearance of the X-Night RS is 42mm, actual width. This means the actual width of the tire on the rim. This can be different from the size mentionn...

No, the X-Night RS can not fit mudguards. The frame is designed for getting dirty in the mud!