MISSION - TRILOGY 20" ADULT TRICYCLESupremely comfortable and easy to ride Our best selling, top quality, affordable trike with alloy rims, comfortable saddle and large shopping basket. 20 wheel: saddle to pedal: up to 24 29 (61 73cm) We can adapt this trike to cater for a wide range of disabilities, see specialised pedals and backrests. All our bikes are built by our professional in house mechanics and come with a free service within 3 months of purchase, no hidden costs.