Argon 18: A GREAT ADDITION TO THE FAMILY With the Gallium CS Disc, we now offer an accessible disc brake equipped race bike; an entry-level Gallium Disc for everyone to enjoy.We made sure that our Gallium CS Disc delivers a riding experience well worthy of its lineage. It may be the entry-level to our disc brake race bike lineup but make no mistake about it, the Gallium CS Disc is a real thoroughbred and it will leave the competition in the dust. SAME GEOMETRY AS THE GALLIUM PRO DISCA World Tour caliber race bikeALL-AROUND ROAD AND CLIMBING BIKEFor a great riding experience and superior braking powerHIGH PERFORMANCE MONOCOQUE CARBON FRAMEWith riveted aluminum front derailleur hanger Designed for flat mount discsREPLACEABLE REAR DERAILLEUR HANGERA direct mount hanger is available as a spare partUP TO 28C (30MM) TYRE CLEARANCEFor maximum comfort and compatibilityPRESS-FIT 3D SYSTEMExtends positioning flexibility by offering 3 head tube heights for every frame size without sacrificing any rigidity; system preserves 5% and 11% more incremental frontal rigidity vs. standard spacers when the handlebar is set at 15mm and 25mm respectivelyARGON 18 12MM THRU-AXLEClean, simple, light and sturdyINLAID CHAINSUCK PROTECTORProtection of the carbon chainstay against wear from the chain’s movement