Model Size	Head Angle	Seat Angle	Top Tube (Effective)		Seat Tube (C-T)		Chainstay		BB Height		Wheel Base		Stand Over
16"	67	73	22.9	583	16.0	405	17.1	435	14.3	363	44.4	1129	32.0	815
18"	67	73	23.9	608	18.0	460	17.1	435	14.3	363	45.5	1155	32.4	824
Extreme 7 frame geometry based on 180mm travel fork