Felt B Performance Ultegra Mix vs Specialized Sirrus X 3.0

Compare Specifications of Felt B Performance Ultegra Mix and Specialized Sirrus X 3.0

Selected Bikes

Felt B Performance Ultegra Mix
Felt B Performance Ultegra Mix

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Specialized Sirrus X 3.0
Specialized Sirrus X 3.0

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Technical Specifications
Frame Felt Aero TT/Tri UHC Performance carbon fiber, MMC with Inside Out construction, 68 mm BSA threaded bottom bracket shell, horizontal dropouts with integrated dropout adjusters, internal mechanical or electronic cable routing Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, Plug + Play rack/fender mounts
Stem Devox Tri, ±17¡ rise, ¯31.8 mm, 47 cm (650c) : 60 mm, 51 cm: 80 mm, 54 - 56 cm: 90 mm, 58 cm: 100 mm, 61 cm: 110 mm 3D-forged alloy, 31.8mm, 7-degree rise
Handle Bar Devox Bayonet 3.1 base bar with Devox Ergomod extensions, ¯31.8 mm, 48 - 51 cm: 390 mm, 54 - 58 cm: 420 mm Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm
Fork Felt Aero TT/Tri UHC Performance carbon fiber blades and dropouts, 1.125" aluminum steerer tube A1 Premium Aluminum, flat-mount disc, Plug + Play fender mounts, low rider rack mounts
Seatpost Felt DA/B Aero UHC Advanced carbon fiber, 350 mm length Alloy, 12mm offset, 2-bolt clamp, 27.2mm
Grip -- Specialized Neutralizer, Body Geometry, locking grip
Crankset Shimano 105 R7000, 52/36T, 48 -51 cm: 165 mm, 54 -56 cm: 170 mm, 58 cm: 172.5 mm Forged aluminum arms, 24mm spindle, Narrow-wide steel chainring 40t, chainguard
Pedals -- Specialized Body Geometry Fitness, platform, plastic
Chain Shimano 11-speed KMC X9, 9-speed w/ Missing Link™
Shifters microSHIFT TT 11-speed MicroSHIFT SL-M9295, 9-speed
Saddle Prologo Nago Evo Tri40 T2.0 Bridge Sport, Steel rails, 155/143mm
Headset FSA integrated sealed cartridge bearing with Felt Variable Height Cone Spacers (20 mm PC, 4.5 mm aluminum), Felt top cap, IS-21, 1.125" --
Derailleur Front Shimano Ultegra R8000 braze-on --
Derailleur Rear Shimano Ultegra R8000 11-speed short cage microSHIFT Advent, 1x9 w/ clutch
Hub Front Devox TTR4, 100 mm QR, 24H Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h
Hub Rear Devox TTR3, sealed cartridge bearing, 11-speed, 130 mm QR, 28H Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h
Spoke 2.0 mm stainless steel Stainless, 14g
Cassette Shimano 11-speed, 11-28T microSHIFT Advent, 9-speed, 11-42t
Chainrings -- 40T
Bottom Bracket -- Threaded BSA 68mm
Tyres
Front Vittoria Zaffiro Pro Slick folding, 700 x 23c, 47 cm: Vittoria Rubino G+, 650 x 23c Pathfinder Sport, 700x42
Rear Vittoria Zaffiro Pro Slick folding, 700 x 23c, 47 cm: Vittoria Rubino G+, 650 x 23c Pathfinder Sport, 700x42
Wheel / RIM Devox 30A, tubeless compatible, 17 mm width, 27 mm depth 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
Tube -- Standard 40mm PV 700x32-50
Brakes
Front Shimano 105 R7000 dual pivot caliper Tektro HD-R280, hydraulic disc, 160 mm rotor
Rear TRP T822 TT direct mount caliper brake Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 160mm
Brake Lever Aero TT/Tri --
Suspension
Front -- --
Rear -- --
Colors Available
Colors Matte Obsidian Grey (Aquafresh) Gloss Birch / Satin Taupe Reflective
Satin Maroon / Black / Satin Black Reflective
Gloss Metallic Obsidian / Satin Black Reflective


Physical Specs
Length -- --
Weight 8.82 kg 11.4 kg
Overview
Features - Carbon fiber frame and fork
- Aerodynamically optimized design
- Exceptional handling and fit customization
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Additional Details Bar Tape : Devox Gel tape and new EVA arm pads with anti-microbial cover
Bottom Bracket : Shimano Hollowtech BSA threaded
Seatpost Clamp : Felt Aero Integrated DA/B
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Accessories Carbon assembly paste --

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