Co-Motion Speedster vs Specialized Tarmac SL8 Expert

Compare Specifications of Co-Motion Speedster and Specialized Tarmac SL8 Expert

Selected Bikes

Co-Motion Speedster
Co-Motion Speedster

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Specialized Tarmac SL8 Expert
Specialized Tarmac SL8 Expert

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Technical Specifications
Frame Handbuilt frame with zonally-butted heat-treated Reynolds 631 steel Tarmac SL8 FACT 10r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc
Stem FSA Gossamer and Co-Motion adj. stoker stem Tarmac integrated stem, 6-degree
Handle Bar -- Specialized Expert Shallow Drop, alloy, 125mm drop x 75mm reach
Fork Co-Motion Taper Gauge Tandem Touring fork w/ CNC Tandem Steerer Tarmac SL8 FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc
Seatpost -- S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset
Crankset -- SRAM Rival with Power Meter
Chain -- SRAM Rival 12-speed
Shifters Shimano Ultegra R8000 2x11-speed SRAM Rival eTap AXS
Saddle Co-Motion 31.6 mm / Selle Italia Nekkar & Lady Flow Body Geometry Power Expert
Headset Cane Creek 110 Internal --
Derailleur Front Shimano Ultegra R8000 2x11-speed SRAM Rival eTAP AXS, braze-on
Derailleur Rear Shimano Ultegra R8000 2x11-speed SRAM Rival eTap AXS, 12-speed
Cassette Sunrace 11-40t cassette SRAM Rival, 12-speed, 10-36t
Chainrings -- 48/35T
Bottom Bracket -- SRAM DUB BSA 68
Tyres
Front Schwalbe Marathon GT 700 x 35 mm S-Works Turbo, folding bead, 700x26mm
Rear Schwalbe Marathon GT 700 x 35 mm S-Works Turbo, folding bead, 700x26mm
Wheel / RIM Co-Motion A-20 tandem hubs / Astral Outback rims 56cm wheel size
Front Wheel: Roval C38, 21mm internal width carbon rim
Rear Wheel: Roval C38, 21mm internal width carbon rim
Tube -- Turbo Ultralight, 48mm Presta valve
Brakes
Front TRP Spyre w/ 203 mm disc rotors SRAM Rival eTap AXS, hydraulic disc
Rear TRP Spyre w/ 203 mm disc rotors SRAM Rival eTap AXS, hydraulic disc
Suspension
Front -- --
Rear -- --
Colors Available
Colors -- Gloss Smoke / Obsidian
Gloss Metallic Dark Navy / Astral Blue Pearl
Satin Powder Indigo Tint Over Silver Dust / White


Physical Specs
Length -- --
Height -- 723 mm
Weight -- 7.77 kg
Handlebar Width -- 360
Wheelbase -- 970 mm
Overview
About -- The Specialized Tarmac SL8 Expert presents a sleek, aerodynamically engineered bicycle designed Read More
Features - Derailleur drive trains are lightweight, smooth operating and very efficient
- This double ring 11-speed kit offers generous gear range
- Speedster Shimano Ultegra 2x11 Kit offers a 22.9" low, 122.7" high gear
- Exclusive Reynolds air-hardening 631 steel tubes
- Proven Co-Motion touring geometry
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Additional Details Drivetrain : Co-Motion compact 50/34t
Cockpit : FSA Omega compact and Co-Motion stoker bar
Tape: Supacaz Super Sticky Kush
Seat Binder: Tarmac integrated wedge

Which one do you think is better? And why?
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