Paired with a Brose Allround LCD display, the powertrain offers users four ride modes and a 20-mph assisted top speed. In Boost mode, the MOSH/CTY lays down 66 lb-ft of torque. Be forewarned, though, aggressive riding yields mileage at the lower end of the 35-105-mile range. Drain the battery and you’re liable to wait nearly five hours for the removable power pack to fully recharge.
On level pavement, I frequently opted for the Tour and Sport modes. Under the same conditions, Boost mode easily achieved the MOSH/CTY’s 20-mph max but a “spinny” cadence accompanied all that velocity. As a result, I reserved that full-power mode for hill climbs, and for good reason. Even when facing steep grades, I never needed to raise out of the seat to power up the incline. When it was time to bomb down the other end, Eco mode kept my legs from whirling into oblivion.
Unfortunately, several steep hills dotted my route back home. As one would expect, the 50/22 gear ratio didn’t exactly shuttle me up to the mountaintop. Neither did the MOSH/CTY’s 48.3-pound weight. After pumping up several hills and walking the bike up a mile-long climb, I vowed to never leave the Serial 1 uncharged again.
While that austere controller matches the MOSH/CTY’s streamlined form, the interface isn’t the most legible unit on the market—especially under direct sunlight. The LCD display communicates the charge status as a single green light with five white dots and the power mode as a blue light with four white dots. In the end, the Allround LCD display gets the job done, but it certainly seems like a lo-fi solution—particularly when considering the MOSH/CTY’s MSRP.