Bird Zero AM (with 140mm Pike and Cane Creek Angleset @ -0.5 deg)
Banshee Spitfire (with 160mm Pike and the shorter dropouts in the high/steep position)
As pictured the Zero AM geometry (@20% sag) is:
HA = 66.2 deg
SA = 75.4 deg
BB height = 303mm
Reach = 450mm
Wheelbase = 1159mm
Spitfire in this configuration (also sagged):
HA = 66.7? deg
SA = 74.2? deg
BB height = 319mm
Reach = 429mm
Wheelbase ~ 1154mm
The Spitfire has mostly been used in the neutral or low/slack settings which take 0.5 or 1 deg off the angles and add 5 or 10mm or so to the wheelbase. More recently it’s has a -2 deg headset fitted and the fork shortened to 150mm giving the following sagged geometry:
HA = 64.1? deg
SA = 74.1? deg
BB height ~ 300mm
Reach = 425mm
Wheelbase ~ 1175mm
Bike is now way more capable downhill than rider! 😉