Motorcycle construction, maintenance and technical condition
What the exam tests
This domain tests whether you understand your A2 machine's legal limits, safety-critical components and simple checks. An A2 motorcycle may have a maximum power of 35 kW, a power-to-weight ratio no higher than 0.2 kW/kg and must not be derived from a machine producing more than 70 kW. Riding a machine outside those limits can invalidate insurance and the licence entitlement.
Core rules
- Check tyres for pressure, cuts, bulges and tread depth. Motorcycle tyres need adequate tread and correct pressure; low pressure harms steering and can overheat the tyre.
- Check the chain for slack, lubrication and worn sprockets. An over-tight chain stresses the gearbox output bearing; a loose chain can jump off.
- Brake fluid absorbs moisture over time and should be changed to schedule. Check pads, discs and hoses for wear or leaks.
- Test lights, brake light, indicators and horn. A failed brake light hides your intentions and is a common inspection failure.
- Check steering-head bearings, suspension, wheel bearings and for oil or fuel leaks. Listen for unusual noises.
- Keep the machine within type approval. Non-approved exhausts, lighting changes or power modifications can make it illegal and uninsured.
- Follow the Danish periodic inspection and registration requirements, and keep the machine's documents accessible.
Worked example
Your rear tyre looks fine but feels vague in bends. You check pressure cold: it is well below the manufacturer's figure. The chain is also tight, with almost no slack. You inflate the tyre to the specified pressure and adjust the chain to the handbook clearance. The vague steering was not a suspension fault; it was two basic maintenance items.
Traps
Checking tyre pressure when hot and setting it too low; ignoring chain slack until it fails; using automotive oil in the wrong system; fitting a loud exhaust that fails inspection; assuming a power kit is legal because the bike still runs; skipping a pre-ride check because the bike passed inspection last year.