Front seat fits someone from 5’5-5’11 ish, and back seat sits someone 5’0-5’6 ish Here are the particulars: Frame & fork-True temper 4130 Chromoly Headset-1 1/8 Ritchey Logic Handlebar-FSA K-Wing, full carbon with new red tape IRC Stems-Ritehey Complite and adjustable stoker stem FiSA Crankset-Burley 130 Alloy Tandem 52/42/28; 42T crossover WICKWERKS cranks Front derailleur- Shimano RSX VLTEGRA Rear derailleir-Shimano RSX- PLORE 10 SPEED Shifters/brake levers- Shimano RSX STI, 7 speed- 105 10 SPED Rear cogs-Shimano 11-28 speed cassett Chain- Shimano HG 50 Pedals-mountain SPDs included Brakes-upgraded Avid Single Digit 7s with torque multipliers and drum drag brake Hubs-Shimano STX Tandem Wheels- American made Matrix Vapors Tires-Continentals 700×25 • SCHAWALBE 280 Stoker suspension- carbon beam, super confortable Color-Sappire Blue frame, red handlebar tape and white bottle cages and cable housings Weight-42 lbs