Independent Ignition Supplies - Specialist magneto component suppliers Online Catalogue : Accessories : Drive Couplings Simms Vernier Coupling Insert 19/20 tooth (294) Stock Number 294 - Reproduction - Hard rubber. Price:  £14.65 (Excluding: VAT at 17.5%) Wico Floating Coupling Insert (293) Stock Number 293 - Reproduction - Tufnol Price:  £10.55 (Excluding: VAT at 17.5%) BTH type RN Coupling Insert (962) Stock Number 962 - Reproduction. Price:  £8.80 (Excluding: VAT at 17.5%) Online Catalogue : Accessories : Drive Couplings Independent Ignition Supplies - Specialist magneto component suppliers