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ADV NewsHonda Brings Grom With More Range & New Powerplant To U.S.

Honda Brings Grom With More Range & New Powerplant To U.S.

All-new 2022 Grom is now easier to customize and peppier.

Published on 03.04.2021

When Honda introduced its 125cc Grom for the 2014 model year the miniMOTO concept was firmly put on the map, spawning an army of enthusiasts that embraced the mini-bike with remarkable passion. To this day, the Grom holds a cult following of fun-seekers who use the versatile pint-sized bike for everything from pit errands to round-the-world travel.

Already launched in some markets last fall, the latest iteration of the Grom is now coming to the U.S. market for model-year 2022, featuring new quick-release bodywork that facilitates customization, more fuel capacity, an updated LCD display and a peppier new engine, now with a fifth gear. 

Design/Styling

Now in its third iteration, the Grom sports all-new, pared-down styling with straighter lines, a smaller subframe and thicker seat padding (seat height is still a low 30 inches). In addition, the four main body panels quickly attach/detach, facilitating customization—a hallmark of Grom culture that is sure to be welcomed by customers eager to personalize their rides.


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The 2022 Grom’s minimalist aesthetic is complemented by its blacked-out engine, exhaust, wheels and swingarm, while a special SP version has a gold finish on the fork, wheels and brake calipers, plus a yellow shock spring.

Practical improvements include an increase in fuel capacity, from 1.45 gallons to 1.59 gallons. In addition, the upgraded LCD digital dash now has a gear-position indicator, alongside the speedometer, tachometer, twin trip meters, fuel gauge and clock.

Engine/Drivetrain

The Grom’s updates are more than skin deep. The new engine now includes—for the first time—a fifth gear for more comfortable cruising. Honda’s engineers achieved this by specifying a wider spread of gear ratios and replacing the previous 34-tooth final-drive sprocket with a 38-tooth size. The changes not only provide peppier acceleration from low speeds, but increase top speed as well.

The 125cc two-valve, overhead-cam, air-cooled engine has a compression ratio of 10:1 (versus 9.3:1 with the previous model). This is achieved via an undersquare design, with a narrower bore and longer stroke than its predecessor—50.0 mm and 63.1 mm, compared to 52.4 mm and 57.9 mm with the previous engine.

PGM-FI fuel injection assures optimal fuel delivery and highly efficient combustion. A large, 2.5-liter airbox houses a panel-type, wet-paper filter with a 10,000-mile life in normal riding conditions.

Many Grom owners prefer to do their own maintenance, and a welcome addition to the 2021 model is a replaceable oil filter, a practical upgrade from cleaning the previous model’s oil spinner and screen.

Do-it-yourselfers will also appreciate the redesigned exhaust downpipe and muffler, which are now two separate parts for ease of replacement.

Chassis/Suspension

The suspension remains unchanged with a 31 mm inverted fork and a single shock. The brakes feature a dual-piston front caliper with 220 mm disc, and a single-piston rear caliper with 190 mm disc. Wheels are a 12-inch cast design—a signature feature of the Grom—but the 2021 model boasts a new five-spoke pattern.

Of special note, the available revamped ABS system operates through an IMU (inertial measurement unit) that gives precise front-to-rear distribution of braking operation, depending on vehicle behavior.

Colors and Pricing

The 2022 Grom is offered in Queen Bee Yellow, Matte Black Metallic and a special SP color option that has stylish graphics and a yellow shock spring, plus a gold finish for the wheels, brake calipers and fork. The ABS version is available in Candy Blue.

  • Grom: $3,399
  • Grom SP: $3,499
  • Grom ABS: $3,599

2022 Grom Specs

Engine Type 123.9cc air-cooled single-cylinder four-stroke
Bore And Stroke 50mm x 63.1mm
Compression Ratio 10:01
Induction PGM-FI with automatic enrichment
Ignition Electronic
Valve Train SOHC; two valves per cylinder
Transmission Five-speed
Final Drive 15T/38T; Chain
Front Suspension 31mm telescopic inverted fork; 3.9 inches of travel
Rear Suspension Single shock with steel box-section swingarm; 4.1 inches of travel
Front Brake Single 220mm disc with hydraulic dual-piston caliper
Rear Brake Single 190mm disc with hydraulic single piston caliper
Front Tire 120/70-12
Rear Tire 130/70-12
Rake (Caster Angle)
Trail 
25°
3.3 inches
Wheelbase 47.2 inches
Seat Height 30 inches
Fuel Capacity 1.6 gallons
Curb Weight TBD

Author: ADV Pulse Staff
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