HIRTH REDUCTION DRIVE • WANTED • Hirth Belt Drive 2.16, 2.2 or 2.5 Ratios. Hirth Gearbox G-50 2.29 Ratio. • Contact Bill Larson - OREGON AIRCRAFT DESIGN LLC , Event Coordinator - located Willamina, OR 97396 United States • Telephone: ---------- • Posted March 1, 2025 • Show all Ads posted by this Advertiser • Recommend This Ad to a Friend • Email Advertiser • Save to Watchlist • Report This Ad