What are the differences between Stark Varg models (MX gen1/gen2, MX 1.2, EX, SM)?

The difference is the model, not the year.

• MX 1 (2023–25, gen1/gen2) — 6.5 kWh battery, the first model.
• EX (2025+) — 7.2 kWh, new wiring, frame, phone, enduro suspension and fork angle, headlight, brake light.
• MX 1.2 (2025+) — 7.2 kWh, new wiring, frame, phone, revised MX suspension.
• SM (2026+) — new wiring, frame, phone, SM suspension, fork angle, triple clamp, headlight, brake light.

Plastics and wheels are the same on all models; among the brakes only the front one on the SM differs. Motors and gearboxes are identical. Gen1 and gen2 barely differ: the charging port was moved and the wiring rerouted.