| 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 |
Felt Verza Speed Step-Thru, Superlite Butted aluminum, smooth TIG welding, 1.125" head tube, flat mount disc standard, internal cable routing, replaceable derailleur hanger |
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| Stem |
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Aluminum, ±15¡ rise, ¯31.8 mm, XS: 80 mm, SM/MD: 90 mm, LG: 100 mm |
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| Handle Bar |
Mid handlebar |
Flat bar, butted aluminum, ¯31.8 mm, 9¡ sweep, XS: 600 mm, SM/MD: 620 mm LG: 640 mm |
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| Fork |
Steel Brazed Fork |
Felt Fitness, 1.125" 4130 Cr-Mo steerer tube, Hi-Ten Steel blades, flat mount disc tabs, mounting bosses on side of blades, 9 mm QR axle |
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| Seatpost |
Extended, Silver (35") |
Aluminum double bolt micro-adjust, ¯27.2 mm x 350 mm |
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| Grip |
Push-on Rubber Grips |
Felt Ergonomic double density |
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| Crankset |
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SR/Suntour XCT, 48/36/26T, XS/SM/MD: 170 mm, LG: 175 mm |
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| Pedals |
Non-folding Composite Pedals |
Fitness nylon with TPE non-slip inlay |
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| Chain |
6061 forged aluminium crank with 44T chainring and integrated chainguard |
KMC X9, 9-speed |
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| Shifters |
Brompton 3 Speed Shifter |
Shimano Altus M310 Rapidfire Plus, 3 x 9 |
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| Saddle |
A Line saddle with black rails 147mm width
Composite seat clamp and rear frame clip in matt black finish |
Devox road sport, gel |
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| Headset |
Brompton Headset |
FSA semi-integrated, No.10, 1.125" |
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| Derailleur Front |
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Shimano Altus M370, clamp-on, ¯31.8 mm |
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| Derailleur Rear |
Brompton Chain Pusher |
Shimano Altus 9-speed long cage |
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| Hub Front |
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9-speed, 135 mm QR, 6-bolt, 32H |
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| Hub Rear |
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100 mm QR, 6-bolt, 32H |
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| Spoke |
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2.0 mm stainless steel |
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| Cassette |
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Shimano, 9-speed, 11-34T |
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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 |
Kenda Kadence, K-Shield puncture protection, reflective strip, 60tpi, 700 x 30c |
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| Rear |
Schwalbe Marathon Racer |
Kenda Kadence, K-Shield puncture protection, reflective strip, 60tpi, 700 x 30c |
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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 |
Devox Road Disc double wall aluminum, tubeless ready, 17 mm inner width, 22 mm depth |
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| Tube |
Schrader Valve |
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