| 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 |
Series 3 6061 Aluminum Frame, 27.5” Wheels, 120 mm Travel, MultiTrac Suspension Platform, 148 x 12 mm Boost Thru-Axle, 73 mm Threaded BB w/ ISCG05 Tabs |
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| Stem |
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Marin 3D Forged Alloy, 35 mm |
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| Handle Bar |
Mid handlebar |
Marin Mini-Riser, 6061 Double Butted Aluminum, 780 mm Width, 28 mm rise, 5º Up, 9º Back |
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| Fork |
Steel Brazed Fork |
RockShox Recon RL 27.5", 130 mm Travel, Solo Air, Compression and Rebound Adjustment, Alloy Tapered Steerer, Fast Black Uppers, 110 x 15 mm Boost Spacing, Maxle Stealth, 46 mm Offset |
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| Seatpost |
Extended, Silver (35") |
TranzX, YSP23JL, 1x Remote, Size S 125 mm Travel, Size M & L 150 mm Travel, Size XL 175 mm Travel, 30.9 mm |
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| Grip |
Push-on Rubber Grips |
Marin Single Clamp Locking |
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| Crankset |
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Sram SX Eagle, 32T Direct Mount Narrow Wide Steel Chainring |
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| Pedals |
Non-folding Composite Pedals |
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| Chain |
6061 forged aluminium crank with 44T chainring and integrated chainguard |
Sram SX Eagle |
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| Shifters |
Brompton 3 Speed Shifter |
Shift Lever : SRAM SX 12-Speed |
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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 Speed Concept |
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| Headset |
Brompton Headset |
FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2” |
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| Derailleur Rear |
Brompton Chain Pusher |
SRAM SX 12-Speed Long Cage |
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| Hub Front |
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Forged Alloy, 148 x 12 mm, Quad Sealed Bearings, Centerlock Disc, 32H, Standard Feehub Body |
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| Hub Rear |
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Forged Alloy, 110 x 15 mm, Centerlock Disc, 32H |
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| Spoke |
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14 g Black Stainless Steel |
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| Cassette |
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Sram PG-1210 Eagle 11-50T |
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| Sprocket |
13 Tooth |
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| Bottom Bracket |
Square taper bottom bracket |
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| Front |
Schwalbe Marathon Racer |
Vee Tire Co, Flow Snap, 27.5 x 2.35, Tackee Compound, 72 TPI, Tubeless Compatible |
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| Rear |
Schwalbe Marathon Racer |
Vee Tire Co, Flow Snap, 27.5 x 2.35, Tackee Compound, 72 TPI, 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, Pinned 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 |
- Series 3 Aluminum Frame + 27.5” Wheels
- Multitrac Suspension Technology
- Internal Routing
- 148 X 12 mm Thru-Axle |
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| Additional Details |
Folded Size: 25.3' H' x 23'' W x 10.6'' D
Hinge Clamps: Composite hinge clamp levers |
Shock : RockShox Deluxe Select R, Debonair Air Sleeve, Rebound Adjustment, Custom Tune, 210 x 50 mm, 22.2 mm x M8 Hardware
Bottom Bracket : Sram Powerspline, 73 mm BSA
Extras : Bolt-on Thru-Axle |
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