The Speedster

Due to Co-Motion's reputation for making tandems with remarkably unique frame designs, the Speedster once had the reputation as the "sleeper" of our line. Since then, the secret escaped that the Speedster's frame was the lightest steel tandem frame available anywhere (now only surpassed by the Supremo).

Despite its apparent simplicity, the Speedster epitomizes what a Co-Motion tandem is all about; responsive handling, comfort in the saddle, and confidence-inspiring road manners. When you're riding a Co-Motion tandem, you'll feel as though you're still on your single bike. Unlike other brands of tandems, the sense that you're driving a tractor-trailer disappears when you experience the quick and nimble steering of the Speedster. That precision handling summarizes the Co-Motion philosophy as well as the Speedster's character. This tandem is remarkably lightweight and fun to take up long climbs, yet rock solid and stable on winding descents.

Co-Motion's unmatched ride quality is the foundation of our tandem reputation, and we believe in packaging it with beautiful workmanship and finish. No one wants to invest in a machine as well developed as the Speedster without reaping the aesthetic rewards that Co-Motion owners expect. Super precise TIG welded joints, impeccable finish details, and show-quality custom paint are all yours to enjoy even when you don't have the time to take a ride.

This year we have upgraded the Speedster's frame construction with further improvements to our exclusive air-hardening tandem tube package, a cro-moly steel unequalled by any steel alloy used by other tandem manufacturers. As on all Co-Motion models, one-piece top and lateral tubes keep the frame straight and strong with no interruption at the center joints. These double- and triple-butted tubes, made to our stringent specifications, produce a lighter tandem frameset than any prior generation of Cro-Moly tubing. The result is that the Speedster delivers a ride that is crisp and comfortable at the same time.

A roomy stoker compartment, simple three-size system, and numerous stem selections for captain and stoker make a great fitting tandem a reality for just about any team. The Speedster's high level of component specifications will leave you completely satisfied that you own one of the best tandems the world has to offer. And the good news is - you'll be absolutely right.

Frame Specifications
Frame Size 21/1822/1923/20
Head Angle 73°73°73°
Seat Angle, Captain 73°73°73°
Seat Angle, Stoker 73°73°73°
Top Tube, Front 21.75"22.5"23.25"
Top Tube, Rear 28.5"28.5"28.5"
Bottom Bracket Height 10.75"10.75"10.75"
Rear Axle Spacing 145mm145mm145mm
Seat Post Diameter 29.8mm29.8mm29.8mm
Standover, Front 30.5"31.1"32"
Standover, Rear 27.6"28.6"29.5"

Frame sizes are measured from center of bottom bracket to top of seat tube collar.
Standover heights are measured at mid top tube.
Top tube lengths are measured on effective horizontal.

Click here to find the right fit.

Tandem Componenet Package
Frame Co-Motion designed air-hardening triple butted tandem tubing ForkCo-Motion taper-gauge Cro-Moly, with Co-Motion CNC tandem steerer
HeadsetRaceFace Thermo threadless Bottom BracketsShimano UN-52
CranksetRaceFace Tandem Chainrings54-44-32
BrakesAvid Single Digit 7 Brake LeversShimano Ultegra STI Flite Deck
Front DerailleurUltegra 6500 Triple Rear DerailleurShimano XT 9sp
CassetteLX 11-32 9sp ShiftersShimano Ultegra STI Flite Deck
Seat PostsZoom 29.8 mm SaddlesCo-Motion D2 Men's & Women's
Captain StemSalsa Moto-Ace 8-13cm Stoker StemTelescoping adjustable (see options)
ChainShimano CN-HG92 PedalsNone
HubsDT Hugi Symmetric 36h, 40h or 48h SpokesDT 14 gauge
RimsVelocity Dyad Silver TiresAvocet Fasgrip20 700x28
QR skewersSalsa HandlebarsProfile 40,42,44, or Stoker

Tandem Optional Equipment
Co-Motion max-adjustable stoker stem Co-Motion/WoundUp carbon tandem fork
Chris King headset Rockshox suspension seat post
Arai drum brake with QR kit Phil Wood tandem hubset
Shimano Ultegra Tandem Crankset package Bar-end shifters & 287-V brake levers in lieu of STI

Paint Options:

Stock colors:
  • Midnight Blue Metallic
  • Tropical Green Metallic
  • Pavo Purple Metallic
  • Prowler Yellow
  • Deep Red Metallic
  • Silver Metallic