We're pleased to say that we have successfully combined the famous Co-Motion ride with the proven merits of Easton 7005 double-butted and triple-butted aluminum. If you know Co-Motion, you know that we aren't satisfied with the same tubing used by other tandem makers.
We started by specifying singular triple-butted one-piece top and lateral tubes (see features page). These tubes are large diameter along their entire length, not just in the center, so you benefit from their greater strength, cleaner lines, and a more accurately constructed frame.
Co-Motion tandems are renowned for excellent road manners and the Big AL capitalizes on our experience. Let us show you how a tandem can reward you for your hard-earned skills, while earning your confidence with its resolute integrity. The Big AL's fine handling balance combines our impeccable geometry with our unrivaled Co-Motion fork.
To make the most out of the power of two cyclists, we use large cross-section, non-indented oval chainstays, which we combine with lighter seatstays to maintain a more comfortable ride than other aluminum tandems. Combined with our double-butted seat tubes, big oval double-butted boom tube and center-relieved head tube, the resulting package is what you can expect only from Co-Motion: the best riding aluminum tandem available.
|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||145mm||145mm||145mm|
|Seat Post Diameter||29.8mm||29.8mm||29.8mm|
Click here to find the right fit.
|Frame||Easton 7005 select triple butted tandem tubing||Fork||Co-Motion taper-gauge Cro-Moly, with Co-Motion CNC tandem steerer|
|Headset||RaceFace Thermo threadless||Bottom Brackets||Shimano UN-52|
|Brakes||Avid Single Digit 7||Brake Levers||Shimano Ultegra STI Flite Deck|
|Front Derailleur||Ultegra 6500 Triple||Rear Derailleur||Shimano XT 9sp|
|Cassette||LX 11-32 9sp||Shifters||Shimano Ultegra STI Flite Deck|
|Seat Posts||Zoom 29.8 mm||Saddles||Co-Motion D2 Men's & Women's|
|Captain Stem||Salsa Moto-Ace 8-13cm||Stoker Stem||Telescoping adjustable (see options)|
|Hubs||DT Hugi Symmetric 36h, 40h or 48h||Spokes||DT 14 gauge|
|Rims||Velocity Dyad Silver||Tires||Avocet Fasgrip20 700x28|
|QR skewers||Salsa||Handlebars||Profile 40,42,44, or Stoker|
|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|