16/06/2026
There is a number stamped on your brake disc right now.
Most drivers have never seen it. Most mechanics never mention it. And ignoring it is one of the most dangerous things you can do on an African road.
It is called the MDT — Minimum Discard Thickness.
Every brake disc leaves the factory with a safe operating thickness. As the disc wears through braking, that thickness reduces. When it falls below the MDT stamped on the disc face, the metal can no longer safely absorb the heat generated by emergency braking.
What happens when you drive below MDT:
— The disc warps under heat — your steering wheel shakes violently when braking at speed
— The disc develops heat cracks radiating from the ventilation holes outward
— In extreme cases the disc fractures under hard braking — total brake failure at the moment you need them most
The MDT number is stamped on the inner face of your disc. It reads something like MIN. 20mm or DISCARD: 18mm. It takes 10 minutes to check. It could save your life.
Factory MDT specs for the most common vehicles on our roads:
Toyota Probox NCP50 — Front 18mm / Rear 8mm
Toyota Premio 240 — Front 20mm / Rear 10mm
Nissan Note E12 — Front 18mm / Rear 8mm
Toyota Harrier ZSU60 — Front 22mm / Rear 10mm
Toyota Noah AZR60 — Front 20mm / Rear 10mm
Subaru Forester SG — Front 20mm / Rear 8mm
Toyota Land Cruiser Prado 120 — Front 26mm / Rear 14mm
BMW E46 320i — Front 20mm / Rear 8mm
Toyota Hilux Vigo — Front 24mm / Rear 12mm
Nissan X-Trail T30/T31 — Front 22mm / Rear 10mm
If your disc is at or below these numbers — do not wait for noise, do not wait for the next service. Replace immediately.
At SparesWorld we stock OEM-grade brake discs for every vehicle above — Akebono, Advics, ATE, Brembo, Bosch, and TRW — verified supply chain, correct fitment, same-day delivery within Nairobi. We ship across Africa.
Drop your car model in the comments. We will give you your exact MDT spec, disc brand recommendation, and price a full brake service for your vehicle.
Your brakes are the most important safety system on your car. Do not compromise on the parts.
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