We’ve featured all manner of modified Honda Groms since the pint-sized model’s release in 2014, but this particular example stands out from the rest as it’s powered by the motor from a 2018 CRF250L. Before being shoehorned into a 2015 Grom chassis, the brand-new quarter-liter DOHC single was reportedly given the cam off a CBR250R and a blued GP-style end-can paired with an Aracer RC mini4C Stage 1 adjustable ECU.
The build also features a K-Speed swing-arm linked to an “Phohlins” (knockoff Ohlins) mono-shock. Additional upgrades include new handlebars and grips, billet MX-style pegs, Monkey fork guards, deleted fenders, smoked taillight and flush-mount signals, aftermarket mirror, tail tidy, and new Arctic White plastics. The CRF’s engine makes nearly 2.5 times as much horsepower as the stock unit (24 hp vs 9.7 hp), and that’s before the cam, exhaust, and ECU. The small-wheeled scoot also puts down at least 16.7 ft-lbs of torque — more than double that of a stock Grom. Since the completion of the transplant, less than 60 miles have been put on the Honda, too. This could be a real fun runabout!
You can find this upgraded 2015 Honda Grom with a 2018 Honda CRF250L engine for sale here on Craigslist in Rochester, New York with a price of $5,500.