The SL, as expected (“SL” stands for street legal), is essentially the Kalk INK model with the addition of lights and mirrors. Both the Kalk INK SL and off-road-only Kalk INK are based on the Kalk OR platform, which made its debut in 2018. All four Kalk models in the series (Kalk OR, Kalk&, Kalk INK, and Kalk INK SL) share the same basic drivetrain, battery, and 6061 aluminum frame/swingarm that were developed for the higher-spec, off-road-only Kalk OR and its street-legal sibling the Kalk&. To keep the price down, the Kalk INK and Kalk INK SL simplify certain systems, using a non-linkage rear suspension and a more robust yet still lightweight motocross-style front suspension instead of the Öhlins components found on the OR and the &. The other major points of difference are the black, injection-molded polycarbonate and ABS fenders and bodywork, but both INK models run the same sturdy 19-inch wheels for added durability and less overall maintenance. The SL adds weight and price—and top speed—over the standard INK, coming in at about 11 pounds heavier, $1,000 more expensive, and with a top speed of around 56 mph, Cake says.