Cannondale CAAD Optimo 3 vs Trek Zelda 3i

Compare Specifications of Cannondale CAAD Optimo 3 and Trek Zelda 3i

Selected Bikes

Cannondale CAAD Optimo 3
Cannondale CAAD Optimo 3

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Trek Zelda 3i
Trek Zelda 3i

Brand:

Model:

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Technical Specifications
Load Carrying Capacity -- Combined weight of bicycle, rider, and cargo of 300 pounds (136 kg)
Frame SmartForm C2 Alloy, SAVE, tapered headtube, fender mounts, 130x10mm QR Boomerang 6061-T6 aluminum with patented Flat Foot Technology
Stem 6061 Alloy, 31.8, 7 degree Alloy classic
Handle Bar 6061 Alloy, Compact Electra Cafe
Fork CAAD Optimo Full Carbon, 1-1/8" to 1-1/4" steerer, fender mounts, 100x9mm QR Steel unicrown
Seatpost Cannondale 4, 6061 Alloy, 27.2x350mm Classic alloy pillar
Grip Cannondale Bar Tape, 3.5mm Custom
Crankset FSA Vero Alloy, 50/34 Electra custom alloy 3-piece
Pedals -- Electra retro
Chain KMC X9, 9-speed KMC S1 nickel plated
Shifters Shimano Sora, 9-speed Shimano Nexus Revo 3-speed twist with optical gear display
Saddle Cannondale Stage CX Electra comfort with matching design with double-coil springs
Headset CAAD Optimo, 1-1/8" to 1-1/4", 25mm top cap 1" steel threaded
Derailleur Front Shimano Sora, 31.8 clamp --
Derailleur Rear Shimano Sora GS --
Hub Front Formula RB-31 Shimano Nexus 3-speed internal with coaster brake, 36h
Hub Rear Formula RB-32 Shimano Nexus HB-IM40 with roller brake hub, alloy, 36h
Spoke Stainless Steel, 14g --
Cassette Shimano HG50, 11-30, 9-speed 22t
Chainrings -- 44t steel chainring
Bottom Bracket Cartridge, square taper Sealed cartridge
Stand -- Integrated kickstand
Tyres
Front Vittoria Zaffiro, 700x25c RetroRunner 26" × 2.125"
Rear Vittoria Zaffiro, 700x25c RetroRunner 26" × 2.125"
Wheel / RIM RS 3.0, 24h front, 28h rear Painted alloy
Brakes
Front Promax RC-452, dual pivot calipers Shimano BR-C3000 roller brake
Rear Promax RC-452, dual pivot calipers Shimano coaster brake
Brake Lever Shimano Sora --
Suspension
Front -- --
Rear -- --
Colors Available
Colors Black Pearl


Physical Specs
Length -- --
Weight -- 17.04 kg
Overview
Features -- - Flat Foot Technology
Additional Details -- Painted fenders
Stainless steel and anti-rust hardware
Custom bell

Which one do you think is better? And why?
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