Specialized S-Works Tarmac SL8 - Shimano Dura-Ace Di2 vs Surly Big Dummy

Compare Specifications of Specialized S-Works Tarmac SL8 - Shimano Dura-Ace Di2 and Surly Big Dummy

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Specialized S-Works Tarmac SL8 - Shimano Dura-Ace Di2
Specialized S-Works Tarmac SL8 - Shimano Dura-Ace Di2

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Surly Big Dummy
Surly Big Dummy

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Technical Specifications
Frame S-Works Tarmac SL8 FACT 12r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc Surly Big Dummy, Surly 4130 Chromoly steel. Main triangle double-butted. TIG-welded cargo specific engineered for stiffness.
Stem Roval Rapide Cockpit, Integrated Bar/Stem 4 Bolt 31.8mm clamp
Handle Bar Roval Rapide Cockpit, Integrated Bar/Stem Premetec
Fork -- Surly Troll 420mm axle-to-crown x 43mm offset, tapered and butted straight blade, 4130 Chromoly. 51mm I.S. disc mount
Seatpost S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset 2 -Bolt. 27.2mm
Clamp: Surly Stainless, 30mm Surly stainless, included
Grip Supacaz Super Sticky Kush Velo Non-Locking
Crankset Shimano Dura-Ace R9200, HollowTech II, 12-speed with 4iiii Precision Pro dual-sided powermeter TruVativ 48/36/26
Chain Shimano Dura-Ace, 12-speed KMC X10
Shifters -- X5 Trigger
Saddle Body Geometry S-Works Power, carbon fiber rails, carbon fiber base WTB Volt Sport
Headset -- Cane Creek 40
Derailleur Front Shimano Dura-Ace R9250, braze-on Shimano Deore, FD-T611-3
Derailleur Rear Shimano Dura-Ace R9250, 12-speed SRAM GX Type 2.1
Hub Front -- Shimano Deore M525, 36h, QR
Hub Rear -- Shimano Deore M525, 36h, QR
Cassette Shimano Dura-Ace, 12-speed, 11-30t --
Chainrings 52/36T --
Bottom Bracket Shimano Dura-Ace, BB-R9200 SRAM
Tyres
Front S-Works Turbo Rapidair 2BR, 700x26mm Schwalbe Big Apple 26" x 60mm
Rear S-Works Turbo Rapidair 2BR, 700x26mm Schwalbe Big Apple 26" x 60mm
Wheel / RIM Front: Roval Rapide CLX II, Tubeless, 21mm internal width carbon rim, 51mm depth, Win Tunnel Engineered, Roval AFD hub, 18h, DT Swiss Aerolite spokes
Rear: Roval Rapide CLX II, Tubeless, 21mm internal width carbon rim, 60mm depth, Win Tunnel Engineered, Roval AFD hub, 24h, DT Swiss Aerolite spokes
Rims: Alex Adventurer
Tube Turbo Ultralight, 60mm Front, 80mm Rear, Presta valve --
Brakes
Front Shimano Dura-Ace R9270, hydraulic disc Avid BB7
Rear Shimano Dura-Ace R9270, hydraulic disc Avid BB7
Brake Lever Shimano Dura-Ace R9270, hydraulic disc Avid FR-5
Suspension
Front S-Works FACT 12r Carbon, 12x100mm thru-axle, flat-mount disc --
Rear -- --
Colors Available
Colors Satin Fog Tint / Green Ghost Pearl / Red Ghost Pearl Fade
Satin Carbon / Viavi Cynan Blue / Viavi Silver-Blue Pearl Fade / Gloss Metallic White Silver
Dark Side of the Maroon
Blacktacular


Physical Specs
Length -- --
Weight 6.62 kg --
Overview
Features -- Kickstand plate.
Dedicated Rohloff cable routing and mount for OEM 2 axle plate.
Human cargo compliant with the use of Dummy Rail Collars.
Vertical, 135mm spaced dropouts with fender eyelets; Rohloff compliant.
Additional Details -- Size:
Small (16) - Medium (18) - Large (20) - XLarge ( 22)
Rotors: SRAM Centerline 180/180mm
Cog or cogset: Microshift CS-H100 10 speed, 11-36t

Which one do you think is better? And why?
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