Morpheus. It provides for a more recumbent riding position with consequent aerodynamic advantages.
Circe Thule stand off
Helios front stand fitted to your bike, though you will need a strap to secure the front wheel.
Ursus Jumbo Stand
The double-leg, wide stance of this stand means that, even when loaded, your bike will remain upright and stable.
It will fit both the Helios and Morpheus, but causes interference with derailleur gears, and can only be fitted to models with a hub gear.
Weight limit - 55kg
Helios and Separable Helios, where they quickly make the bikes into a much narrower package for transportation, storage or packing in the suitcase. The range includes includes flatsided, clipless and flat/clipless hybrid style pedals. Supplied with cleats and fitting instructions.
Prices range from £40 to £85
Ursus Jumbo, but is a far neater option for those who just want a way of supporting their Circe while they have a Latte!
Weight limit - 25kg
The Cane Creek Thudbuster is the Rolls Royce of suspension seat posts. Particularly popular for stokers on the Helios tandem, it can have benefits for the captain on either the Helios or the Morpheus. Either way, it eats the bumps, so you can enjoy the ride!
Comes with 27.2 to 30.2 mm shim
Morpheus front stand offers exactly that. It is easy to deploy with the stoker in place and folds away neatly without affecting panniers mounted on the Mid rack. It secures simply and securely to the stoker handlebar and bosses on the down tube.
Weight limit - 100kg
Prices from around £180 for an upgrade to an existing bike.
Helios Front Stand
The stand can be retrofitted to any Helios frame.
Weight limit - 50kg