Brompton A Line vs Trek Speed Concept

Load Carrying Capacity	--	Combined weight of bicycle, rider, and cargo of 275 pounds (125 kg)
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	500 Series OCLV Carbon, KVF (Kammtail Virtual Foil) tube shape, BB90, Speed Fin compatible, DuoTrap compatible, SC Draft Box 2 & SC Speed Box 2 compatible
Stem	--	Size : S - Bontrager Speed Concept, direct mount, 69 mm rise, 67 mm reach Size : S, M, L, XL - Bontrager Speed Concept, direct mount Size : M, L, XL - Bontrager Speed Concept, direct mount, 61 mm rise, 110 mm reach
Handle Bar	Mid handlebar	Bontrager Speed Concept KVF aero bar, carbon, direct mount, UCI legal
Fork	Steel Brazed Fork	SC full foil carbon, integrated brake & stem
Seatpost	Extended, Silver (35")	Size : S - Bontrager Speed Concept Race Lite, alloy, +/-20 mm offset, 275 mm length Size : M, L, XL - Bontrager Speed Concept Race Lite, alloy, +/-20 mm offset, 335 mm length
Grip	Push-on Rubber Grips	Bontrager tape
Crankset	--	Size : S - Shimano Ultegra R8000, 50/34 (compact), 165 mm length Size : M - Shimano Ultegra R8000, 50/34 (compact), 170 mm length Size : L - Shimano Ultegra R8000, 50/34 (compact), 172.5 mm length Size : XL - Shimano Ultegra R8000, 50/34 (compact), 175 mm length
Pedals	Non-folding Composite Pedals	--
Chain	6061 forged aluminium crank with 44T chainring and integrated chainguard	Shimano Ultegra HG701, 11-speed
Shifters	Brompton 3 Speed Shifter	Shimano Dura-Ace, bar end, 11 speed
Saddle	A Line saddle with black rails 147mm width Composite seat clamp and rear frame clip in matt black finish	Bontrager Hilo Comp, hollow chromoly rails
Headset	Brompton Headset	Integrated, sealed bearings
Derailleur Front	--	Shimano Ultegra R8000, braze-on
Derailleur Rear	Brompton Chain Pusher	Shimano Ultegra R8000, short cage, 30T max cog
Cassette	--	Shimano Ultegra R8000, 11-28, 11 speed
Chainrings	--	50/34 (compact)
Sprocket	13 Tooth	--
Bottom Bracket	Square taper bottom bracket	Trek BB90

Front	Schwalbe Marathon Racer	Bontrager R2 Hard-Case Lite, aramid bead, 60 tpi, 700 x 25c
Rear	Schwalbe Marathon Racer	Bontrager R2 Hard-Case Lite, aramid bead, 60 tpi, 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	Front : Bontrager Aeolus Comp, OCLV Carbon, Tubeless Ready, 100 x 5 mm QR Rear : Bontrager Aeolus Comp, OCLV Carbon, Tubeless Ready, Shimano 11-speed freehub, 130 x 5 mm QR
Tube	Schrader Valve	--

Front	Brompton A Line calipers	Bontrager Speed Limit integrated, Bontrager Race Lite aero levers
Rear	Brompton A Line calipers	Bontrager Speed Limit integrated, Bontrager Race Lite aero levers
Brake Lever	--	Bontrager Race Lite aero

Front	--	--
Rear	--	--

Colors

White

Viper Red / Trek White Crystal White/Blue Matte Onyx Carbon Matte/Gloss Trek Black

Length	--	--
Weight	11.5 kg	9.09 kg

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	- KVF tube shape - Ultra-clean front end - Fast build, easy adjustment - 500 series OCLV - Integrated speed storage
Additional Details	Folded Size: 25.3' H' x 23'' W x 10.6'' D Hinge Clamps: Composite hinge clamp levers	--