Green Eel The Green Eel is a Trek 3 series 3500 with a frame size of 21”, that means Large. It’s a great fit for someone between about 5’8″ and 6’4″. It has V-Brakes and Shimano Tourney derraileurs. Alum. Fork Trek Size 21” – 53.5cm Crowbar Shimano Tourney 26” Tourney 3 Series V-brakes SSR saddle Trek 3500 Bontrager wheels and tires Front suspension Trek 3500