Frame Data & Geometry | Bird MTB // Born in Swinley, Built in the UK.

	Small	Medium	Large	X-Large	XX-Large
Chest Size (in)	36-38	38-40	40-42	42-44	44-46
Half Chest (cm)	51	54	57	60	63
Body Length (cm)	72.5	75	77.5	80	82.5

	X-Small	Small	Medium	Large	X-Large
UK Women’s Size	6-8	8-10	10-12	12-14	14-16
Half Chest (cm)	51.5	54	56.5	59	61.5
Body Length (cm)	59.5	62.5	65.5	68.5	72.5

	Small	Medium	Large	X-Large	XX-Large
Chest Size (in)	36-38	38-40	40-42	42-44	44-46
Half Chest (cm)	52	55	58	61	64
Body Length (cm)	72	74.5	77	79.5	82

T-Shirt Size Guide

	Small	Medium	Large	X-Large	XX-Large
Chest Size (in)	36-38	38-40	40-42	42-44	44-46
Half Chest (cm)	49	52	55	58	61
Body Length (cm)	69	72	74	76	78
Sleeve Length (cm)	20.5	21.5	22.5	22.5	23.5