Arch Motorcycle ramps up production of the sporty 1s Cruiser

Arch 1s - Side, Right (Red)

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Arch 1s – Side, Right (Red)

Arch’s second production model has been in the works for five years.

Motorcycle bow made a name for itself with bespoke designs, big-bore V-twins and even bigger price tags. Back to EICMA 2017, the California brand showed off its KRGT-1 production model, the Method 143 prototype, and Arch’s second production bike, the 1s. After five years of development, Arch is ready to bring the new sports cruiser to the production line.

The 2017 1s concept featured mid-mounted controls, aerodynamic bodywork, single-sided swingarm, and model-specific swept-back exhaust. Those components remain, but Arch fills in the rest of the details with a full spec sheet. S&S Cycle still supplies the 124ci (2,032cc) 45-degree V-twin, but Arch now reports the two-liter mill produces 115.3 lb-ft of torque.

The 1s tames all that torque with dual, radially-mounted, six-piston monobloc ISR calipers mated to twin rotors up front. The rear braking system is no slouch either, with a four-piston ISR binder biting into a floating disc. Bosch ABS rules both ends, ensuring the multipot calipers don’t overwhelm the 120/70-17 and 240/45-17 Michelin Power RS ​​tires.

Arch’s 1s is so much more than a straight-line speedster. The company equips the tubular steel frame with a CNC-machined aluminum subframe and a single-sided billet aluminum swingarm. The front features the fully adjustable Öhlins fork found on Arch’s KGRT-1 model and the rear benefits from a fully adjustable Öhlins shock with oil reservoir and hydraulic preload adjustment.

In line with the 1’s sporting ambitions, the 17-inch BST carbon fiber wheelset replaces the 19-inch front and 18-inch rear BST carbon fiber wheels of the KGRT-1. Likewise, the 1 drops 33 pounds on the wet weight of the KGRT, with the new model tipping the scales at 563 pounds. A 4.5 gallon fuel tank adds a practical touch to all this performance, but the 1s remains Euro 4 compliant which may limit its availability.

As always, Arch will dress the 1s in carbon fiber and customers will be able to customize the sports cruiser. Still, as the 1s go into production, the company has yet to state the model’s MSRP or availability.

In the wings:

Source: Motorrad, Motorcycle bow

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