• Periscope Trident shown in Black opaque with Matte finish option

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PeriScope Trident

The PeriScope Trident makes it easy to start your kids riding early, family style! Super-friendly adjustability makes fitting everyone a snap.
  • Handbuilt frame with zonally-butted Co-Motion design cro-moly steeltubing
  • 26” wheels for versatility and strength
  • Larger head tube with smooth-operating internal headset
Click here to get your Co-Motion PeriScope Trident order started!

PeriScope Trident
  • Frame: Handbuilt frame with zonally-butted cro-moly steel tubing
  • Fork: Co-Motion Taper Gauge w/ CNC Tandem Steerer
  • Derailleurs/Shifters: Shimano 105 5700 Triple 10-speed
  • Brakes: TRP Spyre w/ 203mm Rotor
  • Headset: FSA Orbit Z 44mm Internal
  • Drivetrain: FSA Gossamer tandem cranks 52/39/30t / Shimano XT 11-32t 10-Speed cassette
  • Cockpit: FSA Omega and Co-Motion stoker bars / FSA Gossamer and Co-Motion adj. stoker stems
  • Post/Saddle: Co-Motion 29.8mm, PeriScope Seatmast System / Selle Italia X1 & X1 Lady,
  • Wheels: Co-Motion A-20 tandem hubs / Velocity Dyad 26" rims
  • Tires: Schwalbe Spicer 26x1.5"
Frame SizeSmall / 49.5 x 38.5 x 27.5cmLarge / 49.5 x 38.5 x 27.5cm
Front Seat Tube C-T (cm)49.549.5
Rear Seat Tube C-T (cm)38.5 mid, 27.5 rear38.5 mid, 27.5 rear
Front Top Tube Length horiz. (cm)5257
Rear Top Tube Length horiz. (cm)70.0 mid, 70.0 rear70.0 mid, 70.0 rear
Head Tube Angle71.5°71.5°
Fork Rake (mm)4545
Front Seat Tube Angle74°73°
Rear Seat Tube Angle74°, 74°73°, 73°
Top Tube Angle
Head Tube length (mm)165165
Chainstay Length (cm)43.843.8
BB Height (cm)2727
BB drop (mm)5252
Standover Height Front (cm)72.672.6
Standover Height Rear (cm)62.0 mid, 51.3 rear62.0 mid, 51.3 rear
Wheelbase (cm)239.9244.8
Fork Span (mm)375375
  • "I have a periscope trident bike with 26” wheels which my kids and I LOVE to ride." - Rich H.
Opaque PPG Global System Paint Options

Also known as non-metallic, or solid colors. Strong rich colors for a traditional look.
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Metallic And Mica PPG Global System Paints

Tiny metallic or mica particles reflect light and add showroom depth and shine.
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House of Kolor (HOK) Pearlescent Paint Options

Pearl or opalescent particles in the paint add subtle beauty and a distinctive look to your Co-Motion’s finish.
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Decal Choices

These are our available decal colors. Most of these will look great with any color. If you need help choosing, please ask for our advice. Within our site, you will also see logos in different color, usually a larger version. These are done with a painting process called reverse masking. See the "Team Logos" option for an example.

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4765 Pacific Ave Eugene, OR 97402 United States