Honda Jazz Brake Discs: Specs, Fitment & Wear Symptoms

On the Jazz, "warping" is genuinely more commonly uneven pad material transfer, not thermal distortion.

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OEM Part Number: 45251SAAG11

Accuracy note: genuine Honda part numbers confirmed directly from a UK Honda parts specialist, covering multiple generations — always confirm your exact model year before ordering, since the correct number varies by generation.

Genuine Honda references (2002-2020 range, sold as a pair)	Honda OEM: 45251SAAG11, 45251SAAG50, 45251TARG00, or 45251TZAJ00 — confirm which applies to your specific year with a supplier using your registration
2002-2008 (GD/GE generation), front discs	258mm diameter, vented, 21mm thickness, 19mm minimum
2008-2016 (GE generation), front discs	262mm diameter, vented, 21mm thickness, 19mm minimum
Rear discs, most generations	239mm diameter, solid, 9-10mm thickness, 8mm minimum

A Genuinely Detailed, Real Technical Explanation Worth Knowing — Honda Jazz Brake Discs

If you're feeling pulsation through the brake pedal and have been told the discs have "warped," a genuinely detailed explanation from experienced technicians is worth knowing: this is much more commonly a case of Runout/Thickness Variation (RTV) — pad material transferring unevenly onto the disc surface, creating high and low spots — rather than genuine, severe thermal distortion of the disc itself.

A genuinely important, distinct symptom worth knowing about lateral runout: even brand-new discs can have some small amount of inherent wobble straight from the factory, and if excessive, this forces the caliper pistons to push back with every revolution — over time producing a genuinely spongy-feeling brake pedal, distinct from simple vibration.

A genuinely practical piece of advice worth following after fitting new discs or pads: use the brakes lightly for the first 200 miles specifically. The most common documented cause of discs appearing to "warp" shortly after replacement is genuinely heavy braking while the components are still new.

Honda Jazz Brake Discs: The Part That Pads Depend On

On the Honda Jazz, wear on one of this pair accelerates wear on the other, so a pad change booked as routine maintenance often turns up discs that have quietly deteriorated alongside them.

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.

Honda Jazz 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 Jazz typically use bigger discs than standard versions to handle the additional heat generated by more aggressive braking.

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Honda Jazz 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 Honda Brake Discs

The same part, covered across other Honda models.