• Torpedo 700c, shown in Ferrari Red

  • Co-Motion CNC'd rear disc dropouts

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PeriScope Torpedo

This tandem is ideal for getting your young child started cycling early, yet can stick with your family as your child grows and take you places you never imagined.
  • Co-Motion exclusive zonally-butted steel tubing
  • 700c wheels
  • Frame available in 3 sizes
  • Dual disc brakes and Shimano 105 kit
  • Hand built 700c Alex/ Co-Motion A-20 tandem wheels
  • Beautifully equipped, versatile tandem that fits nearly everyone
  • Available in two standard colors: Ferrari Red and Medium Blue metallic
Click here to get your Co-Motion PeriScope Torpedo order started!

PeriScope Torpedo
  • Frame: Handbuilt frame with zonally-butted cro-moly steel tubing
  • Fork: Co-Motion Taper Gauge w/ CNC Tandem Steerer
  • Derailleurs/Shifters: Shimano 105 Triple 10-speed
  • Brakes: TRP Spyre w/ 203mm disc rotors
  • Headset: FSA Orbit Z 44mm Internal
  • Drivetrain: FSA Gossamer tandem cranks 52/39/30t / 11-32t cassette
  • Cockpit: FSA Omega and Co-Motion stoker bar / FSA Gossamer and Co-Motion adj. stoker stem
  • Post/Saddle: Co-Motion 29.8mm, PeriScope Seatmast System / Selle Italia X1 & X1 Lady
  • Wheels: Co-Motion A-20 tandem hubs / Alex ATD 490 rims
  • Tires: Continental Ultra Sport II 700c x 28
PeriScope Torpedo (700c) -Note: Torpedo model no longer offered w/26" wheels
Frame Size48.5 x 30cm50 x 30cm51.5x30
Front Seat Tube C-T (cm)48.55051.5
Rear Seat Tube C-T (cm)303030
Front Top Tube Length (cm)54.556.558.5
Rear Top Tube Length (cm)72.472.472.4
Head Tube Angle73°73°73°
Fork Rake (mm)505050
Front Seat Tube Angle74°73°73°
Rear Seat Tube Angle74°73°73°
Top Tube Angle14°15°16°
Head Tube length (mm)165185205
Chainstay Length (cm)43.843.843.8
BB Height (cm)272727
BB drop (mm)727272
Standover Height, front (cm)74.175.677.4
Standover Height, rear (cm)55.956.156.5
Wheelbase (cm)174.2175.1177.1
Fork Span (mm)390390390
  • "The Torpedo is also easily the best-handling tandem I’ve ever ridden. Part of the great handling owes to the advantage the PeriScope offers by keeping the stoker’s center of gravity as low as possible. I mean, it also helps that my stoker weighs a whopping 46 lbs., but regardless, the Torpedo carves turns in a way no other tandem I’ve ridden does." - Patrick B.

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