Gorilla: Built around 27.5 x 2.4” tires with clearance for 700c x 42mm. 38T X 11/42t. Tire Size Range27.5 x 1.9~2.4. Tire Size Range 650x42~47, 27.5x1.9~2.4, 700x28~42
Space Horse: Clearance for 650b x 47mm on all sizes, and the 49-61cm frame sizes also fit 700c x 45mm
Space Horse
https://allcitycycles.com/bikes/space_horse_grx
Clearance for 650b x 47mm on all sizes, and the 49-61cm frame sizes also fit 700c x 45mm
49~61mm: 700c x 45mm and 650b x 47mm
The max tire sizes with fenders for the new Space Horse are 650b x 42mm and 700c x 42mm.
A 55cm complete Space Horse GRX weighs 25.8 lbs.
Cosmic Stallion
https://allcitycycles.com/bikes/cosmic_stallion_grx
Tire sizes 700 x 47mm without fenders (700 x 43mm with fenders), or 650b x 42mm.
Tire clearance - without fenders: 700 x 47mm
Tire clearance - with fenders: 700 x 43mm;
700 x 32~47mm, 650b x 38~42mm