California Stone went into production because the base California model became opulent with its high-end features, such as Brembo brakes, top-notch rims, and front suspension. Still, it also came at a high price, which made it available for riders in better financial situations.
The California Stone debuted in 1999 as the California Jackal was renamed in 2001 as California Stone, and was later just Stone to be further differentiated on a marketing level. It was a more affordable motorcycle for all types of riders.
In 2001, the Italian motorcycle maker released the Moto Guzzi California Stone Metal, a special version of the Stone model. The bike was available in Rosso Race, Nerro Shadow, and Grigio Platino color schemes.
Besides its special color choices, the Stone Metal motorcycle came with the same package as the base model, delivering the same technical and performance specifications without any significant modifications.
Aesthetically, the bike packed standard features, such as a teardrop-shaped fuel tank, a one-piece dual seat, valanced fenders, a wide pulled-back handlebar, a round headlight, side-mounted rear shocks, a two-into-two exhaust system with a muffler on each side, and wire-spoke wheels.
For power, the 2001 Moto Guzzi California Stone Metal had its heartbeat set by a 1,064cc four-stroke V-twin air-cooled engine with a fuel injection system feeding the pistons, delivering 75 hp with maximum strength at 6,400 rpm and 94 Nm (69 lb-ft) torque at 5,000 rpm.