Swytch eBike Conversion Kit | 25 Mile Range 250W e-Bike Kit | Converts 99% of Bikes into a State-of-The Art Electric Bike (26.00) : Amazon.co.uk: Sports & Outdoors
TruTest Lamb Weigher Digital Conversion Kit - O' Donovan Engineering
Pneumatic CO2 HPA Conversion Kit,S TW and RG Threaded Airsoft,BB,and Pellet Gun CO2,Replacing 12g Cylinder,8mm Quick Disconnect|Paintball Accessories| - AliExpress
Mark IV - "Male" Conversion Pack - Brickmania Toys