Co-op CTY 2.1 Step-Through vs Felt FR FRD Ultimate Dura-Ace DI2 2020

Compare Specifications of Co-op CTY 2.1 Step-Through and Felt FR FRD Ultimate Dura-Ace DI2 2020

Selected Bikes

Co-op CTY 2.1 Step-Through
Co-op CTY 2.1 Step-Through

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Felt FR FRD Ultimate Dura-Ace DI2 2020
Felt FR FRD Ultimate Dura-Ace DI2 2020

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Technical Specifications
Drivetrain Upgraded 2x drivetrain --
Frame Aluminum Felt Race Road UHC Ultimate + TeXtreme carbon fiber, MMC with Inside Out construction, carbon fiber BB386 bottom bracket shell, 12 x 142 mm Syntace style thru axle, flat mount disc brake standard, CNC aluminum replaceable rear derailleur hanger, external mechanical or internal electronic cable routing
Stem Alloy Pro Components Vibe, -10¡ rise, ¯31.8 mm, 43 cm: 80 mm, 47 - 51 cm: 90 mm, 54 - 56 cm: 100 mm, 58 cm: 110 mm, 61 cm: 120 mm
Handle Bar 6061 aluminum Pro Components Vibe Carbon handlebar compact carbon fiber, ¯31.8 mm, 43 - 51 cm: 400 mm, 54 - 56 cm: 420 mm, 58 - 61 cm: 440 mm
Fork 63 mm, SR Suntour Nex DS Felt Race Road UHC Advanced + TeXtreme carbon fiber monocoque construction, size specific Control Taper carbon fiber steerer tube, integrated crown race, crown and blades. Flat mount disc standard, 12 x 100 mm thru axle
Seatpost 6061 aluminum Pro Components Vibe, 20 mm offset, ¯27.2 mm x 400 mm length
Grip Ergonomic grips --
Crankset Shimano 46/30T Shimano Dura-Ace R9100, 52/36T, 43 - 47 cm: 165 mm, 51 cm: 170 mm, 54 - 56 cm: 172.5 mm, 58 - 61 cm: 175 mm
Pedals Platform --
Chain KMC Z8 Shimano Dura-Ace 11-speed
Shifters Shimano Altus 8-speed Rapidfire Shimano Dura-Ace Di2 R9170 11-speed
Gear 16 gears --
Saddle Selle Royal Shadow Plus with gel Prologo Dimension Nack
Headset Semi-integrated FSA integrated sealed cartridge bearing with carbon fiber cone spacer, Felt top cap, 43 - 47 cm: IS-21, 1.125", 51 - 54 cm: No.382, 1.125 - 1.25", 56 - 61 cm: No.42, 1.125 - 1.5"
Derailleur Front -- Shimano Dura-Ace R9150 Di2 braze-on
Derailleur Rear Shimano Altus Shimano Dura-Ace R9150 Di2 11-speed short cage
Hub Front Joytech, 32h --
Hub Rear Joytech, 32h --
Cassette -- Shimano Dura-Ace 11-speed, 11-28T
Bottom Bracket Shimano Square Taper --
Tyres
Front Kenda Kick-Back, 700c x 40 mm with reflective sidewall Continental Grand Prix 5000 Tubeless, 700 x 25c
Rear Kenda Kick-Back, 700c x 40 mm with reflective sidewall Continental Grand Prix 5000 Tubeless, 700 x 25c
Wheel / RIM 700c Co-op Cycles Shimano Dura-Ace WH-R9170-C40-TL-R12 Carbon
Brakes
Front Tektro HD-M275 hydraulic disc brake Shimano Dura-Ace R9170 hydraulic disc, 160 mm rotor
Rear Tektro HD-M275 hydraulic disc brake Shimano Dura-Ace R9170 hydraulic disc, 140 mm rotor
Brake Lever Tektro Shimano Dura-Ace R9170, hydraulic
Suspension
Front -- --
Rear -- --
Colors Available
Colors Desert Sage Matte TeXtreme (White, Blue)


Physical Specs
Length -- --
Weight 14.5 kg 6.91 kg
Overview
Features - Reflective sidewalls enhance visibility
- Low crossbar for easy mounts and dismounts
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Additional Details Size : XS, M
Best Use : Urban Cycling
Bike Frame Material : Aluminum
Rear Cogs : Shimano Altus, 11-34T
Bar Tape : Felt VelvetGel tape with 3M reflective base with reflective Felt Bubble-Tech F-Wing bar end plugs

Bottom Bracket : Ceramic speed BB386 with 24 mm bearings

Seatpost Clamp : 7075 CNC aluminum, titanium bolt and scandium nut, ¯30.6 mm

Thru Axles : Front: 12 x 100 x 123, thread: M12 x 1.5P x 16L, Maxle; Rear: 12 x 142 x 163 (163L + 7 head = 170 total), thread: M12 x 1.0P x 19L, Syntace
Accessories -- Carbon assembly paste,
Chain plate protector,
Di2 battery charger

Which one do you think is better? And why?
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