| Drivetrain |
Brompton 3 speed drivetrain, 177% range |
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| Riding Modes |
3 Speed (Utility) |
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| 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 |
All New Unidirectional Carbon Fiber Front Triangle, Series 4 Alloy Rear End, 29” Wheels, 150mm Travel MultiTrac Suspension Platform, Internal Dropper Post and Rear Derailleur Routing, Chainstay Mounted Post Mount Disc Brake, 148 x 12 mm Boost Thru-Axle, 73 mm Threaded BB w/ ISCG05 Tabs |
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| Stem |
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Race Face Affect R 35, 50 mm |
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| Handle Bar |
Mid handlebar |
Race Face Affect R 35, 35 mm Clamp, 780 mm Width, 20 mm Rise, 5º Up, 8º Back |
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| Fork |
Steel Brazed Fork |
Fox 38 Performance Elite, 160mm Travel, 29" , 110 x 15 mm Boost Kabolt Thru-Axle, 44 mm Offset, Integrated Fox Fender |
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| Seatpost |
Extended, Silver (35") |
X-Fusion Manic, Size S 125 mm Travel, Size M and L 150 mm Travel, Size XL 170 mm Travel, 30.9 mm, Shimano MT500 1x Lever, I-Spec EV |
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| Grip |
Push-on Rubber Grips |
Marin Single Clamp Locking |
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| Crankset |
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FSA Gradient, Modular 1x, 32T Direct Mount Chainring, MegaTooth Technology, Mego EXO Spindle, Boost Spacing |
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| Pedals |
Non-folding Composite Pedals |
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| Chain |
6061 forged aluminium crank with 44T chainring and integrated chainguard |
KMC X-12 Silver and Black |
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| Shifters |
Brompton 3 Speed Shifter |
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| Saddle |
A Line saddle with black rails 147mm width
Composite seat clamp and rear frame clip in matt black finish |
Marin Trail Speed Concept Pro |
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| Headset |
Brompton Headset |
FSA No 57, Sealed Cartridge Bearings, 1 1/8" x 1 1/2” |
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| Derailleur Rear |
Brompton Chain Pusher |
Shimano XT 12-Speed, SGS |
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| Hub Front |
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Shimano HF-MT410B, 110 x 15 mm, Centerlock |
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| Hub Rear |
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Shimano HB-MT510B, 148 x 12 mm, Centerlock, Microspline Freehub Body |
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| Spoke |
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14g Black Stainless Steel |
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| Cassette |
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Shimano SLX M7100 Cassette, 12-Speed, 10-51T |
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| Sprocket |
13 Tooth |
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| Bottom Bracket |
Square taper bottom bracket |
MEGAEVO BB, 73 mm BSA Threaded |
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| Front |
Schwalbe Marathon Racer |
Maxxis Assegai 29 x 2.5”, MAXX TERRA, EXO+, Tubeless Compatible |
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| Rear |
Schwalbe Marathon Racer |
Maxxis Assegai 29 x 2.5”, MAXX GRIP, DoubleDown, Tubeless Compatible |
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| 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 |
Marin, Double Wall Alloy, 29 mm Inner, Welded Joint, Disc Specific, 32H, Tubeless Compatible |
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| Tube |
Schrader Valve |
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| About |
The Brompton A Line is a practical bicycle designed with a focus on utility. Its technical spec Read More |
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| 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 |
Size Range : S, M, L, XL
Rear Shock : Fox Float DPX2, Performance, EVOL Air Spring, 3 Position Compression Adjustment, Rebound Adjustment, 205 x 65 mm, Trunnion Upper Mount, 25 mm x M8 Lower Mount
Shift Lever : Shimano SLX 12-Speed, I-Spec EV
Bolt-On Thru-Axle, Downtube Protector |
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