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PeriScope Torpedo

  • Torpedo – Performance and Precision for the Whole Family

    The Torpedo Tandem is built with family-friendly PeriScope technology and designed for performance. Perfect for kids, adult stokers, and any rider in between, this tandem is easily adjustable to accommodate a wide range of sizes, making it a true grow-with-you bike for the entire family. With its precision components and Co-Motion craftsmanship, the Torpedo is ready for everything from weekend rides to long-distance touring.

    Key Features:

    • Optimized for 700c wheels with 28-32mm tires for a smooth and efficient ride
    • Co-Motion zonally-butted chromoly tubing for strength and lightweight performance
    • Oversized 44mm head tube & unicrown touring fork for precise handling
    • Proven Co-Motion touring geometry for confident long-distance cycling
    • Rack & fender mounts for easy customization and utility
    • Dual disc brakes for reliable stopping power in any condition
    • Shimano 105 drivetrain for smooth, responsive shifting
    • Hand-built touring wheels for durability and long-lasting performance
    • Choose from road drop bars or mountain/trekking handlebars to suit your riding style
    • Available in two standard colors: Ferrari Red and Silver Metallic

    The Torpedo Tandem combines performance and versatility in one package, ensuring you and your family will enjoy smooth, comfortable, and confident rides for years to come.

Complete bike starting at $5,295.00
Click here to get your Co-Motion PeriScope Torpedo order started!



"The Torpedo is 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.



PeriScope Torpedo Specifications

  • Frame: Handbuilt frame with zonally-butted cro-moly steel tubing
  • Fork: Co-Motion Taper Gauge w/ CNC Tandem Steerer
  • Derailleurs/Shifters:Shimano 105 R7000 GS 2x11-speed
  • Brakes: Avid BB7 w/ 200mm disc rotors
  • Headset: FSA Orbit Z Internal
  • Drivetrain: Co-Motion Compact tandem cranks 50/34t with 11-34t cassette
  • Cockpit: FSA Omega compact 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 & X3 Lady
  • Wheels: Co-Motion A-20 tandem hubs / Alex ATD 490 rims
  • Tires: Continental Ultrasport II 700c x 28mm

PeriScope Torpedo Geometry Table



Frame Size
A - Captain Top Tube (cm)
B - Captain Seat Tube (cm)
C - Stoker Seat Tube (cm)
D - Head Tube (mm)
E - Chainstay (cm)
F - Seat Tube Angle
G - Fork Span (mm)
H - Head Tube Angle
I - Fork Rake (mm)
J - BB Drop (mm)
K - Capt. Standover (cm)
L - Stoker Standover (cm)
M - Wheelbase (cm)
N - Boom Tube (cm)
O - Stack (mm)
P - Reach (mm)
Small Medium Large
54.5 56.5 58.5
48.5 50 51.5
30 30 30
165 185 205
43.8 43.8 43.8
74° 73° 73°
390 390 390
73° 73° 73°
50 50 50
72 72 72
74.1 75.6 77.4
55.9 56.1 56.5
174.2 175.1 177.1
72.4 72.4 72.4
592 611 630
374 378 392


Accessories & Options


Custom Sizing
We have the experience, tools, materials, and knowledge to create the best fitting tandem for a modest charge over the cost of a standard sized tandem.



Stainless Steel Dropouts
Add elegance and durability to your frame with polished stainless steel dropouts. Never worry about paint chipping when installing and removing wheels.



Co-Pilot Couplers
Strong and secure stainless-steel threaded couplers for steel frames. Fits your Co-Motion bicycle inside an airline checkable travel case. Includes spanner wrench.



Polished Couplers
This time intensive 3 stage polishing process will bring your S&S couplers to a beautiful and durable shiny luster. Available only with the Co-Pilot couplers option.



Max Adjust Stoker Stem
We make our Co-Motion Max Adjust Stoker Stem to provide range from shortest to longest extension to maximize the fitting range of your tandem.



Crater Lake Badge
Crater Lake N.P. antiqued silver head tube badge featuring Wizard Island. Crater Lake is a natural wonder, the deepest lake in the USA and one of the most pristine.



Lighthouse Badge
Lighthouse antiqued silver badge for head tubes. Reminiscent of the Heceta Head Lighthouse on the Oregon coast just 70 miles from the Co-Motion factory.



Metal Head Tube Badge
Classic Co-Motion logo metal head tube badge. These can be applied to both tapered and straight head tubes. A great classic look for your new bike.




PeriScope Torpedo Price Calculator

From $5,295.00