Bikes Mountain Cannonde-Mountain Tandem: Mountain Tandem Frame Mountain Tandem Fork Cannondale Fatty 26" tandem-specific Rear Shock N/A Rims Sun Rhyno Lite, 40 hole Hubs DT Tandem Disc Spokes DT Champion Tires Hutchinson Spider, 26 x 2.3” Pedals Not included Crank TruVatiV FireX Tandem, 22/32/44 Chain Shimano 9-Speed Rear Cogs SRAM PG-950, 11-34 Bottom Bracket TruVatiV ISIS splined Front Derailleur Shimano LX Rear Derailleur Shimano XT Shifters Shimano LX Handlebars Cannondale Fire riser front, Fire rear Stem Cannondale 3-D forged Headset Cane Creek S-1 Brakeset Avid ball bearing disc, Mountain Brakelevers Cannonale Fire Saddle Fi'zi:k Plateau front, Selle Royal Look-In Viper rear Seat Post 6061 alloy w/cold-forged head front,Cannondale 1-X Suspension rear Colors Topaz Blue (matte) (BLU).Jet Black (matte) (BBQ). Sizes MS, LS, LM, XS, XM Weight