The Kalk is the first step in establishing a new category of motorbikes, designed for a new user matrix. It’s about building light, quiet and clean, easy to ride, low maintenance, super nimble, never buying gas or filters, high performance, ride without disturbing or polluting. 

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Design and engineering of the Kalk:
The Kalk is engineered around the electric drivetrain to maximize the riding performance. The electric drive train is completely different from an internal combustion engine, with many unique benefits.

An electric drivetrain features instant torque from zero, direct drive, no need for a clutch, few moving parts, low tinkering, no fumes, no sounds, no filters, no oils, tuneable riding modes and regen braking, responsiveness, great throttle control, and swappable batteries.

All parts and components are developed from scratch to keep the weight down at with highest possible performance. Everything from the rims, hubs, stems to the custom Öhlins suspension is engineered and dimensioned, specific for the Kalk and the new category; lightweight electric motorbikes. The components are in a new category and derive from the most sophisticated DH components in terms of technology, materials, and manufacturing, but heavily reinforced, rather than downscaled MX components.
Standard DH parts are engineered for DH bicycles and are too weak. On the other end, MX components simply are too heavy.

Building light electric motorbikes for the ultimate, uncompromising off-road experience requires components engineered for it.
Simply combining off-the-shelf parts of the MTB and motorbike world would result in more parts, bolts, tinkering, welds, impaired geometry, and a compromised riding experience. As mentioned, the MTB components are too weak for a 69+kg (Kalk OR) motorbike, and the MX parts, too heavy, not serving for the specifics of the electric drivetrain.
Same thing goes for traditionally designed electric dirtbikes that are engineered and optimized for a combustion engine, where the ICE is simply swapped for an electric drivetrain and therefore not particularly efficient.