PeriScope Trident

The Trident features our family-friendly PeriScope design with an emphasis steady handling and long lasting quality. ​Easy and quick adjustments fit the widest range of riders of any tandem. Start riding with your kids early and keep them right with you for safety, adventures, and fun! Rack and fender mounts with excellent load handling makes this is one versatile family tandem.
  • Optimized for 26" wheels and 30 - 40mm tires
  • Co-Motion zonally-butted cromoly tubing
  • Oversize 44mm head-tube and uni-crown touring fork
  • Sure and steady handling for three!
  • Proven Co-Motion touring geometry
  • Rack/ fender mounts
  • Dual disc brakes and Shimano 105 Kit
  • Hand built touring wheels
Complete bike starting at $6,895.00
Click here to get your Co-Motion PeriScope Trident order started!

"I have a periscope trident bike with 26” wheels which my kids and I LOVE to ride" Rich H.

PeriScope Trident Specifications

  • Frame: Handbuilt frame with zonally-butted Co-Motion design cro-moly steeltubing
  • Fork: Co-Motion Taper Gauge w/ CNC Tandem Steerer
  • Derailleurs/Shifters: Shimano 105 R7000 GS 2x11-speed
  • Brakes: Avid BB7 203mm disc
  • Headset: FSA Orbit Z Internal
  • Drivetrain: Co-Motion Compact tandem cranks 50/34t / 11-34t 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 & X3 Lady,
  • Wheels: Co-Motion A-20 tandem hubs / Velocity Dyad 26" rims
  • Tires: Schwalbe Spicer 26x1.5"

PeriScope Trident Geometry Table

Frame Size
A - Captain Top Tube (cm)
B - Captain Seat Tube (cm)
C -Stoker Seat Tube1(cm)
C2 -Stoker Seat Tube2(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 -Stoker1 Standover (cm)
L2 -Stoker2 Standover (cm)
M - Wheelbase (cm)
N - Boom Tube 1,2 (cm)
O - Stack (mm)
P - Reach (mm)
Small Large
52 57
49.5 49.5
38.5 38.5
27.5 27.5
165 165
43.8 43.8
74° 73°
375 375
71.5° 71.5°
45 45
55 55
72.6 72.6
62 62
51.3 51.3
239.9 244.8
70 70
554 554
359 389

Custom Paint Options

Opaque Paint Options
Also known as non-metallic, or solid colors, Opaque finishes offer a strong rich color for a classic and traditional look. A timeless paint option for your Co-Motion.

Metallic Paint Options
Tiny metallic or mica particles reflect light and add showroom depth and shine, making your Co-Motion frame stand out with a custom look.

Premium Paint Options
Pearl and Candy finishes add showroom shine or understated elegance.Choose custom combinations to add a distinctive appearance for your Co-Motion.

Decal Choices
Our available decal colors are shown above. These ink-only decals are sealed into your frame between the applied color and the final clearcoat.


Two Color Fade
Fade two colors from Top to Bottom or Front to Back for a unique finish. Choose any two colors from the same swatch of Opaque, Metallic or Pearlescent.

Painted panels on the seat-tube and down-tube add a classic look to a bike. Choose any Opaque or Metallic paint for the panels and frame/fork color.

TEAM Logos
Our TEAM Logo option is a custom reverse-masking process in which the logos are painted on the frame, as opposed to applied decals, for a bold, colorful appearance


Custom Colors
Can't find the perfect color for your new steed? Don't worry, we can match almost any car color using our Sikkens automotive paint system. Give us a call to discuss options.

Silca Frame Pump
The Impero Ultimate frame pump. This American-made pump fits perfectly under the top tube of your frame and delivers full volume and reliability.

Custom Name Decals
Add custom text like a name, quote or phrase to your bike using Black or White paint. This is a custom reverse masking and will be protected by the clear coats on top.


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.

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.

Kickstand Mount
If you plan to mount a kickstand to your Co-Motion, this is the best way to do it. We have two options depending on the drivetrain you choose.

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 Trident Price Calculator

From $6,895.00