KUbikes 20L CF vs Specialized S-Works Tarmac SL8 - Shimano Dura-Ace Di2

Compare Specifications of KUbikes 20L CF and Specialized S-Works Tarmac SL8 - Shimano Dura-Ace Di2

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KUbikes 20L CF
KUbikes 20L CF

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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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Model:

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Technical Specifications
Frame KUbikes carbon, frame height 260 mm S-Works Tarmac SL8 FACT 12r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc
Stem 52 parts, length: 60mm Roval Rapide Cockpit, Integrated Bar/Stem
Handle Bar Configurable Roval Rapide Cockpit, Integrated Bar/Stem
Fork Configurable --
Seatpost Configurable S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset
Grip -- Supacaz Super Sticky Kush
Crankset 52parts aluminum length: 127mm, chainring configurable Shimano Dura-Ace R9200, HollowTech II, 12-speed with 4iiii Precision Pro dual-sided powermeter
Pedals Configurable --
Chain 10 times Shimano Dura-Ace, 12-speed
Shifters Shimano Deore Rapid Fire --
Saddle Configurable Body Geometry S-Works Power, carbon fiber rails, carbon fiber base
Derailleur Front Shimano Zee Shadow Plus Shimano Dura-Ace R9250, braze-on
Derailleur Rear Shimano Zee Shadow Plus Shimano Dura-Ace R9250, 12-speed
Hub Front Industrial bearings, aluminum hollow axle, rotor suitable for 8- to 11-speed cassettes, 20/24 holes --
Hub Rear Industrial bearings, aluminum hollow axle, rotor suitable for 8- to 11-speed cassettes, 20/24 holes --
Spoke Black, VR radial, RW laced twice crossed --
Cassette Configurable Shimano Dura-Ace, 12-speed, 11-30t
Chainrings -- 52/36T
Bottom Bracket Neco cartridge Shimano Dura-Ace, BB-R9200
Tyres
Front Configurable S-Works Turbo Rapidair 2BR, 700x26mm
Rear Configurable S-Works Turbo Rapidair 2BR, 700x26mm
Wheel / RIM Rims : Aluminum double wall rim black 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
Tube -- Turbo Ultralight, 60mm Front, 80mm Rear, Presta valve
Brakes
Front Configurable Shimano Dura-Ace R9270, hydraulic disc
Rear Configurable Shimano Dura-Ace R9270, hydraulic disc
Brake Lever Configurable Shimano Dura-Ace R9270, hydraulic disc
Suspension
Front -- S-Works FACT 12r Carbon, 12x100mm thru-axle, flat-mount disc
Rear -- --
Colors Available
Colors Black Satin Fog Tint / Green Ghost Pearl / Red Ghost Pearl Fade
Satin Carbon / Viavi Cynan Blue / Viavi Silver-Blue Pearl Fade / Gloss Metallic White Silver


Physical Specs
Length -- --
Weight -- 6.62 kg
Kerb Weight 5.24 --
Overview
Features - The lightest KUbikes 20 inch CF (carbon fibre) in size L for bikers from 5 years of age made of carbon
- Super light carbon frame developed by us
- Four individually selectable designs: beautiful princess, daring pirate, jumping cheetah or sparkling stars
- Perfectly tuned frame geometry: sporty driving without losing track
- 10-speed drive for best performance and easy gears
- Lightweight handlebars, hubs, double wall rims, crankset and seat posts
- Configuration of many ultra-light carbon parts possible
- Lightweight double wall rims for maximum stability
- Very light tuning stem from KCNC
- Threadless fork with Ahead headset
- Handles tested for harmful substances
- 127 mm short aluminum cranks
- Small brake handles with grip width adjustment adapted to children's hands
- Smooth brakes
- With chainstay protection made of neoprene
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Additional Details Decor : Embossed aluminum plaque, design: stars
Optional: design cheetah, princess, pirate; without badge
Seat clamp : configurable
Handles : Screw grips 52 parts tested for harmful substances
Tax rate : KUbikes aluminum, black
Production-related weight deviation of +/- 3% possible.
Maximum rider weight: 45 kg

KUbikes offer various components to choose .
If you are unsure which components are best suited for your desired application, we would like to support you in your choice with the following explanations:

Tires
Kenda APTOR 20 x 1.75: All-round tire, ideal for asphalt and light terrain. Very light tire with good rolling properties.
Schwalbe Marathon Racer 20 x 1.50: Road tires, mainly for asphalt. Very low rolling resistance due to negative profile and good visibility thanks to reflective strips. Ideal for the city.
Schwalbe Durano 20 x 1.10: Road tires, mainly for asphalt. Narrow folding tire with very low weight for maximum speed.
Schwalbe Little Joe 20 x 1.40: All-round tire, ideal for asphalt and paved paths. Narrow, very light tire with very good rolling properties.
Schwalbe Little Joe 20 x 2.0: Very wide MTB tire for off-road and unpaved paths. great grip

Brakes
Shimano V-brakes: very smooth-running rim brakes with a good pressure point
KCNC V-Brakes: CNC-milled brakes, optimized lightweight construction, minimal weight

Fork
Carbon fork: rigid fork, absolute lightweight construction
Fork: Spinner Grind Air, 50mm travel, with lockout

Rim
Kinlin black up to tire width 1.75: Kinlin stable and very light double wall rim for 20 inches, eyelets, flanks CNC machined. 20 / 24 holes; Width: 18.5mm, height: 18.7mm, color: black, up to tire width 1.75

Cassette
Number of teeth: The fastest gear is always the same. The easiest gear is determined by the maximum number of teeth. The more teeth, the steeper mountains can be driven.
Shimano CS-5700-10 11 - 28 teeth: Cassette with very good shifting performance, Aluspider
Shimano CS HG81-10 11 - 36 teeth: Cassette with very good shifting performance, Aluspider
Recon full aluminum cassette 10-speed gold 11-36 teeth: Ultra- light cassette, maximum lightweight construction, limited shifting performance

Chainring
KUbikes with 32 teeth narrow/wide: Gear ratio recommended by KUbikes
KUbikes with 28 teeth narrow/wide: Easier gear than chain ring with 32 teeth, enables riding in extremely steep terrain. Pedaling is therefore not always possible when driving downhill. Moderate top speed.

Spokes
High-quality stainless steel spokes in black
Extremely light with 2.0/1.5/2.0mm

Pedals
Aluminum pedals: low weight, very smooth bearing and non-slip.
Aluminum Pedals Platform: 52parts; low weight, very smooth-running storage and non-slip thanks to pins (caution: risk of injury if you slip off!).

Saddle
52parts: narrow ergonomic shape, comfortable padding. Aluminum seat post.
KUbikes Carbon: Extremely light and relatively narrow saddle with carbon frame .

Seat c
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Which one do you think is better? And why?
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