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roll: Bicycle Company A:1R Adventure Road Bike Step-Thru

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Our New A:1R was a process of reduction. The distillation of all its parts to the simplest, most capable, and most efficient combination, to produce a bike that performs far beyond its class. Designed to tackle longer gravel and multi-surface rides the A:1R is built for explorers and all day adventures. The A:1R is equally at home in town or country, beautifully designed, and like all of our bikes, can be fully outfitted with racks, luggage, and accessories to take you around the block or across the country.

Geometry Chart:
Frame SizeSize 1Size 2
Top Tube Length, Horizontal 580mm 600mm
Head Tube Length 145mm 170mm
Head Tube Angle 70.5° 71.0°
Seat Tube Angle 72.0° 71.5°
Seat Tube Length 430mm 485mm
BB Drop 60mm 60mm
Fork Length, Full 405mm 405mm
Fork Rake/Offset 45mm 45mm
Chainstay Length 450mm 450mm
Wheelbase 1067mm 1077mm
Bike Standover Height 710mm 755mm
Frame SizeRider Height
Size 1 5'0" – 5'5"
Size 2 5'6" – 5'11"


Frame Light weight, double butted 6061 aluminum, with internal cable routing.
Fork Hydro-formed 6061 aluminum disc specific, with alloy steerer tube.
Rims 700c or 650b 32hole double wall anodized alloy.
Hubs Polished aluminum disc, sealed cartridge bearings, bolt on QR Skewers.
Spokes Stainless steel 14g spokes stainless steel nipples.
Tires 700x40mm Kenda K1152 Flintridge Dual Tread.
Bottom Bracket Alloy shell with sealed cartridge bearings, square taper steel axle.
Crankset Forged 6061 aluminum polished crank arms, with alloy chain guard.
Chainrings Front: 34 Tooth machined alloy, 3/32"
Shifters SRAM Apex 1x10 DoubleTap shift lever brake.
Rear Derailleur SRAM X5 10 Speed 1x10 long cage.
Cassette/Freewheel SRAM PG-1030 10 speed 11-36 PowerGlide II
Chain KMC X10-93 10 speed, silver.
Brakes Tektro MD-M300, mechanical disc brake, with 160mm TR-1 Rotor.
Brake Levers SRAM S-500 left brake lever.
Handlebars 6061 Aluminum AR:1 Adventure Road bar, 440mm wide, 5.0° sweep
Tape/Grips EVA vibration-damping foam tape.
Stem 3D Forged aluminum alloy, +/- 7 degree rise
Headset VP alloy semi integrated with sealed cartridge bearings
Seatpost Aluminum alloy 30.9mm diameter with 0mm offset.
Saddle Men's Road Saddle, with steel rails.
Pedals Nylon platform with sealed bearings.

* Subject to change without notice.