Brompton A Line vs Felt AR Advanced Ultegra DI2

Compare Specifications of Brompton A Line and Felt AR Advanced Ultegra DI2

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Brompton A Line
Brompton A Line

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Felt AR Advanced Ultegra DI2
Felt AR Advanced Ultegra DI2

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Model:

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Technical Specifications
Drivetrain Brompton 3 speed drivetrain, 177% range --
Riding Modes 3 Speed (Utility) --
Frame Main Frame: Precision drawn heat-treated steel tubing with hand brazing and selected auto-brazed joints
Rear Frame: Hand brazed cold-formed micro-alloy steel tubing
TeXtreme carbon fiber, MMC with InsideOut construction, carbon fiber BB386 bottom bracket shell, 12 x 142 mm Syntace style thru axle, flat mount disc brake standard, aluminum replaceable rear derailleur hanger, internal electronic-specific cable routing, and high-frequency vibration reducing seat post insert
Stem -- AR integrated carbon with internal cable and hose routing -6¡ rise, ¯31.8 mm, 48 - 51 cm: 90 mm, 54 - 56 cm: 100 mm, 58 cm: 110 mm, 61 cm: 120 mm
Handle Bar Mid handlebar Devox Carbon Aero, 80 mm reach, 125 mm drop, ¯31.8 mm, 48 - 54 cm: 400 mm, 56 - 61 cm: 420 mm
Fork Steel Brazed Fork Felt Aero Road UHC Advanced + TeXtreme carbon fiber monocoque construction, AeroTaper 1.125" - 1.25" carbon fiber steerer tube, integrated crown race, crown and blades. Flat mount disc standard, 12 x 100 mm thru axle
Seatpost Extended, Silver (35") Felt VariMount Aero Road UHC Advanced + TeXtreme carbon fiber with high-frequency vibration reducing insert, integrated battery holder, 350 mm length*, 0/20 mm offset *Seatpost can be cut to length
Grip Push-on Rubber Grips --
Crankset -- Shimano Ultegra R8000, 52/36T, 48 cm: 165 mm, 51 cm: 170 mm, 54 - 56 cm: 172.5 mm, 58 - 61 cm: 175 mm
Pedals Non-folding Composite Pedals --
Chain 6061 forged aluminium crank with 44T chainring and integrated chainguard Shimano 11-speed
Shifters Brompton 3 Speed Shifter Shimano Ultegra Di2 R8070 11-speed
Saddle A Line saddle with black rails 147mm width
Composite seat clamp and rear frame clip in matt black finish
Prologo Dimension T4.0
Headset Brompton Headset FSA integrated sealed cartridge bearings MR121 {870E-RS} Upper bearing and MR168 {970E-RS} lower bearing with integrated aero headset spacers and integrated top cover for use with non-integrated stem
Derailleur Front -- Shimano Ultegra R8050 Di2 braze-on
Derailleur Rear Brompton Chain Pusher Shimano Ultegra R8050 Di2 11-speed short cage
Hub Front -- Reynolds Series 1, straight-pull design, 4 pawl, 24T ratchet, 11-speed, 12 x 142 mm thru axle, Center Lock
Hub Rear -- Reynolds Series 1, straight-pull design, 12 x 100 mm thru axle, Center Lock
Spoke -- Sapim Sprint bladed
Cassette -- Shimano 11-speed, 11-30T
Sprocket 13 Tooth --
Bottom Bracket Square taper bottom bracket --
Tyres
Front Schwalbe Marathon Racer Continental Grand Prix 5000 folding, 700 x 25c
Rear Schwalbe Marathon Racer Continental Grand Prix 5000 folding, 700 x 25c
Wheel / RIM Rear Wheel: Double-wall rim, 28 spoke, Brompton Standard ratio 3 speed internal gear hub, 13 tooth sprocket
Front Wheel: Double wall rims, 28 spokes laced to a Brompton front hub
Reynolds AR58 DB Custom carbon, tubeless ready, 21 mm inner width, 58 mm depth
Tube Schrader Valve --
Brakes
Front Brompton A Line calipers Shimano BR-R8070 hydraulic disc, 160 mm rotor
Rear Brompton A Line calipers Shimano BR-R8070 hydraulic disc, 140 mm rotor
Brake Lever -- Shimano Ultegra R8070, hydraulic
Suspension
Front -- --
Rear -- --
Colors Available
Colors White Aquafresh / TeXtreme
White / TeXtreme (Green)


Physical Specs
Length -- --
Weight 11.5 kg --
Overview
About The Brompton A Line is a practical bicycle designed with a focus on utility. Its technical spec Read More --
Features - 3 Easy to use hub gears
- Folds in 20 seconds
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Additional Details Folded Size: 25.3' H' x 23'' W x 10.6'' D
Hinge Clamps: Composite hinge clamp levers
Bar Tape : Felt VelvetGel tape with 3 M reflective base with Felt Bubble-Tech F-Wing bar end plugs
Bottom Bracket : Token BB386 with 24 mm bearings
Seatpost Clamp : Felt Internaloc integrated with titanium bolts
Thru Axle : Front: 12 x 100 x 118, thread: M12 x 1.5P x 13L, Maxle; Rear: 12 x 142 x 161 (161L + 9 head = 170 total), thread: M12 x 1.0P x 18L, Syntace
Accessories -- - Carbon assembly paste
- Chain plate protector
- Tubeless valve stems
- Aero seatpost slot covers
- Di2 battery charger
- Headset top cover for use with non-integrated stem

Which one do you think is better? And why?
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