What causes Piston and ring wear from abuse on the Rieju Mrt 50?

Compression test, listen for piston slap at idle Estimated fix cost: $150-$300

What causes Seized or worn rear brake caliper on the Rieju Mrt 50?

Spin rear wheel, check for binding or uneven drag Estimated fix cost: $40-$120

Cold start quality, idle stability, throttle response Estimated fix cost: $20-$60

Cutting out under load, hard starting, spark test Estimated fix cost: $80-$180

Known issues to inspect before buying a used Rieju Mrt 50. What to check and how much repairs cost.

SERIOUS

Compression test, listen for piston slap at idle

Fix cost: $150-$300

MODERATE

Spin rear wheel, check for binding or uneven drag

Fix cost: $40-$120

MINOR

Cold start quality, idle stability, throttle response

Fix cost: $20-$60

SERIOUS

Cutting out under load, hard starting, spark test

Fix cost: $80-$180

☐Run compression test before buying

☐Check frame for cracks near swingarm

☐Inspect exhaust for repack or damage

☐Verify VIN and confirm not restricted

Decent if maintained, avoid neglected examples