The APEX is our most economical folding bike. It"s ultra compact and durable. It features a Shimano shifter and derailleur for fast reliable shifts, it"s 6 speeds and included rack make it a versatile commuter. The APEX is equipped with a safety latching system. It allows for fast easy folding and maximum security.Specs: Frame: 16 Steel Folding Stem: Foldable Handlebar: Aluminum Height Adjustable Crank: 44T w/ Chainguard Rims: 16 Alloy double walledShifter: Shimano 6 Speed Indexed Derrailleur: Shimano 6 SpeedFold to: 12" x 21" x 29" FREE Platform Pedals includedFREE Front and Rear Fenders included - installed FREE Rear Rack inlcuded - installed