Blackbird Bikes

Side-By-Side Bicycles for Two People
With Cargo Platform

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Side-by-Side Recumbent Bikes

PHONE (612) 991-0078

What is a Quadribent?

Quadribent side-by-side recumbent bike for two ridersThe Quadribent is a two-seat, side-by-side, human powered vehicle that enables almost anyone to enjoy cycling.

The Quadribent attaches two EZ-Classic recumbent bikes to make a four wheel, side-by-side "Sociable Tandem" with independent gearing and pedaling. The recumbents can be detached for solo use.

It is a recumbent vehicle consisting of parallel paired recumbent bicycles that are joined together side-by-side to form a recumbent quad bicycle that two people can ride together.

Co-Captain steering means that either rider can pilot the vehicle.

The dual-drive allows people with different physical abilities to ride together, with either rider generating from 0 to 100 percent of the power.

Quadribent side-by-side bikes are great for combining an adult rider with a child and/or physically challenged rider.

The Quadribent can be separated into two recumbents bikes for “solo” riding and easy transportation.

  • Two EZ classic recumbent bikes joined together side-by-side.
  • Innovative side-by-side design for "sociable" cycling.
  • Features 21 speeds.
  • Seats adjust for a 4' child to 6'2" adult.
  • Four-wheel design makes it stable.
  • Recumbent position makes it comfortable.
  • "Heads-up" design is easy on the neck, shoulder and hands..
  • Custom options available: sunroof canopies, rumble seat, electric motor assist, adaptive equipment, and more!

Built-in Cargo Platform

Built-In Cargo Platform
The Quadribent has a built-in 18" x 30"cargo platform. The Cargo Platform allows you to easily carry things with you: groceries, picnic lunch, perhaps even your dog!

Adaptive Equipment
We have adaptive options for our bicycles.


Subject to change without notice.

• Frame: High Tensile Tig Welded Steel
• Wheel Base: 56.5" (143cm)
• Overall Length: 73" (185cm)
• Seat Height: 24.5" (62cm) l
• Fork: High Tensile Blades Cro-mo Steerer
• BB: Loose Ball 68mm
• Crank: Alloy 170x52/42/30 (steel rings)
• F. Derailleur: Shimano C202
• R. Derailleur: Sram 3.0
• Shifter: Sram 3.0
• Freewheel: Sram PG-830 11-32 8sp
• Pedals: Wellgo LU-812A
• Brake Front: Tektro Alloy Linear Pull
• Brake Rear: Tektro Alloy Linear Pull
• Brake Levers: Sram 3.0
• Headset: 1" Steel
• Handlebar: Steel w/2 Bottle Braze-ons
• Stem: Alloy 240mm Recumbent
• Hub Front: Alloy Q/R
• Hub Rear: Shimano FH-RM40-8
• Rim Front: 16x1.75 28h Alloy
• Rim Rear: 20x1.75 36h Alloy
• Spokes: 14g. Stainless Steel
• Tire Front: 16x1.50 BW Kenda Kwest
• Tire Rear: 20x1.50 BW Kenda Kwest
• Saddle: Contoured Foam w/Lycra Type Cover
• Seat Slide: Steel
• Seat Back: Cool Back Adjustable
• Wt 39 lbs

Price List

How to Order

Quadribent side by side recumbent bicycles

Quadribent™ Side-By-Side Bike for two people, with built-in cargo platform. Designed for comfort, stability, easy and efficient riding.

Available in RED or BLUE

© 2015 and Blackbird Designs Inc.    Phone (612) 991-0078