Truth Saddlery - SADDLE FIT BASICS - GULLET WIDTH Tree Widths: Semi-Quarter horse bars usually have a 6 1/4" gullet, and Quarter Horse Bars usually have a 6 1/2" to 6 3/4"
How to Measure a Saddle Gullet (English & Western Saddle) – Saddles Now
17" CWD SE02, 1C Flap, Medium (4") Tree – Olson's Tack Shop
Collegiate Simple & Quick Changeable Gullet System Bar: Chicks Discount Saddlery
Miniature Western Silver Accents Youth Show Saddle - NewEngland Tack
David Dyer Saddles - Prestige Saddles
Western Saddle Fitting and Different Tree Sizes
Henri de Rivel Millennium Covered Close Contact Saddle – Breeches.com
Western Saddle Seat Size Chart | Ultimate Guide For Measuring A Saddle - TexanSaddles.com