Co-Motion Mocha – Road Build

Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)


  • Standard Opaque or Metallic colors
SKU: TDM-CoM-Mocha-Rd Category:


Excellent versatility!
The Mocha is a Co-motion’s rugged 650b wheeled tandem for unpaved adventure, touring and fun that is also superb for smaller riders. This ultra-versatile platform features the following:
  • 650b (also known as 27.5”) wheels for great selection of adventure and touring tires
  • Rack and fender mounts standard
  • Co-Motion-design zonally-butted cro-moly tubing
  • Rugged chainstay yoke design for clearance and toughness
  • Excellent choice for touring, family cycling and travel
  • Hand built Velocity/ Co-Motion wheels
  • New flat-bar handlebar option for 2016


  • Frame: Handbuilt frame with zonally-butted cro-moly steel tubing
  • Fork: Co-Motion Taper Gauge w/ CNC Tandem Steerer
  • Derailleurs/Shifters: Shimano 105 5703 Triple
  • Brakes: Avid BB7 w/ 200mm Rotors
  • Headset: FSA Orbit
  • Drivetrain: TruVativ Elita Tandem Cranks 52/39/30T; 11-32t 10spd cassette
  • Cockpit: FSA Omega captain bar & stem; Co-Motion Stoker bar & stem
  • Post/Saddle: Selle Italia X1 & X1 Lady, Co-Motion 31.6
  • Wheels: Velocity 650b Rims; Co-Motion A-10 Tandem Hubs
  • Tires: Schwalbe Big Ben, 650b/ 27.5×2″ Tire
Size                                           Small               Medium               Large
Frame Size cm                    52x46cm      54x44cm            56x46cm
Front seat tube length  52cm               54cm                     56cm
Rear seat tube length    46cm               44cm                     46cm
Front top tube length    54.5cm           56.5cm                 59.0cm
Rear top tube length      72.4cm           72.4cm                 72.4cm
Head Angle                          73°                    73°                          73°
Front seat tube angle    74°                     73°                         73°
Rear seat tube angle      74°                     73°                         73°
Top Tube Angle                 7.5°                    7.5°                        7.5°
Headtube length (mm)145                     165                        185
Chainstay Length (cm)43.8                     43.8                       43.8
BB Height (cm)                27.1                     27.1                       27.1
BB drop (mm)                   72                         72                           72
Standover Front(cm)   76.5                     78.6                        80.4
Standover rear (cm)     66.9                     69.1                        70.8
Wheelbase (cm)             174.1                  175.1                     177.6
Fork Span                           390mm              390mm                390mm
Fork Rake                           50mm                 50mm                    50mm


1 review for Co-Motion Mocha – Road Build

  1. Rated 5 out of 5


    We have 550 miles on our custom-built Mocha. It’s been very nice riding rough pavement and gravel with it. The surprise was how well it works on pavement. I gave Alex our measurements and the fit was right when we picked it up. The DI-2 triple works well and a Garmin GPS shows the gear positions at all times. The TRP mechanical brakes work very well with the Ultegra brake/shifters. The 650b setup on our small frame has minimal toe overlap. The steering and handling are light and quick, which I’ve come to expect from CoMotion. The front boost thru-axle on the steel fork probably contributes to the good handling. We’re using 2 sets of 47 mm tires. the Terrene Elwood gravel work well in heavier, loose gravel and mount up tubeless okay. The Compass Switchback Pass (tubeless ready) work well on pavement, dirt, and light gravel, but only with tubes. They blew off the Cliffhanger rims, spraying sealant everywhere. The wheels are overbuilt for our team weight, and that’s just fine for our remote rides where a failure means spending a night in the woods. This bike has met all our expectations and Alex bent over backwards setting it up.

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