Hyundai i20 Brake Discs: Specs, Fitment & Wear Symptoms

On the i20, "warping" is genuinely often a widespread Hyundai/Kia design issue where pads get stuck in the caliper bracket.

Illustration for editorial purposes

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OEM Part Number: 517121G000

Genuinely worth knowing about the rear parking brake: some i20s use traditional brake shoes pressing against a small drum built into the centre of the rear disc, while others simply use the pads pressing against the disc itself — worth checking which type your car has visually before assuming a job is more complex than it is, since this is easy to identify without removing the disc.

Front disc set (shares platform with Kia Rio)	Hyundai OEM: 517121G000 (also referenced as 51712-1G000) — 256mm diameter, vented, 22mm thickness, 20mm minimum
Rear disc	Hyundai OEM: 58411 1H100
1.0 Turbo (120bhp) and 1.4 diesel, front discs	280mm diameter, vented — a genuinely larger specification than the standard 256mm
i20 N performance variant, front discs	320mm diameter, vented, 28mm thickness — a significantly larger, genuinely different specification

A Genuinely Detailed, Real Root Cause Worth Knowing About "Warping" — Hyundai i20 Brake Discs

If you've been told your discs have "warped" and are experiencing recurring vibration, this is genuinely worth knowing: this has been documented as a widespread design issue affecting Hyundai and Kia models broadly, where the brake pads themselves can get stuck inside the caliper bracket rather than moving freely. This causes uneven contact between pad and disc, producing vibration typically blamed on a "warped" disc. A documented fix: lightly grinding down the small tabs on the back of the pad and applying appropriate brake grease allows the pad to move more freely.

A genuinely honest, real dealer dismissal worth knowing about: one documented case saw a dealer refuse to consider that faulty pads might have caused rotor damage, citing a limited brake parts warranty and declining to investigate further.

It's also worth knowing that rear discs commonly corrode more than the fronts on many cars simply because the rear brakes experience less pressure during normal driving.

Hyundai i20 Brake Discs: The Part That Pads Depend On

On the Hyundai i20, these two components wear together, and letting one go too long accelerates wear on the other, which is why a simple pad swap so often reveals discs that need replacing at the same time.

Before you buy: disc size and design vary by trim, engine size and whether your car has the standard or "sport" brake package. Always confirm against your VIN before ordering.

Hyundai i20 Brake Discs: What They Do

Brake discs provide the surface the brake pads clamp against to slow the car, converting momentum into heat through friction. Larger, sportier trims of the i20 typically use bigger discs than standard versions to handle the additional heat generated by more aggressive braking.

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Hyundai i20 Brake Discs: Wear Symptoms, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Brake Discs Guide for warning signs to watch for, confirming fitment against your VIN, and choosing a reliable aftermarket disc.

More Hyundai Brake Discs

The same part, covered across other Hyundai models.