Nissan Micra K12 Big Brake Kit - 280mm

Upgrade the braking system on your Nissan Micra K12 with our GizFab 280mm Big Brake Kit.

Designed and engineered specifically for the K12, this package combines GizFab billet-machined caliper adapters with Hi-Spec billet brake calipers, 280mm brake discs, performance pads and braided brake hoses to provide a comprehensive front brake upgrade.

The kit has been designed primarily around 15" wheels, although we have confirmed fitment with many 14" wheel designs.

Key Features

• Designed & Engineered by GizFab Motorsport Developments
• 280mm Front Brake Discs
• 2x Hi-Spec Billet Brake Calipers
• GizFab Billet-Machined Caliper Adapters
• Anodised Adapter Finish
• Caliper Adapter Hardware Included
• Performance Brake Pads Included
• Choice of Pad Compounds Available
• Choice of Brake Disc Styles Available
• Braided Brake Hoses & Fittings Included
• Designed to Fit Under Suitable 15" Wheels
• Confirmed to Fit Under Many 14" Wheels
• Suitable for Road, Fast-Road, Track & Performance Builds
• 12-Month Warranty on GMD-Manufactured Components

Complete 280mm Front Brake Conversion

This isn't simply a larger pair of discs.

The GizFab K12 Big Brake Kit has been designed as a complete package, providing the main components required to convert the front braking system to our 280mm Hi-Spec caliper arrangement.

The kit includes:

• 2x Hi-Spec Billet Brake Calipers
• 2x 280mm Front Brake Discs
• 1x Front Brake Pad Set
• 2x GizFab Billet-Machined & Anodised Caliper Adapters
• Caliper Adapter Mounting Hardware
• Braided Brake Hoses
• Required Brake Hose Fittings

280mm Brake Discs

Increasing the brake disc diameter moves the braking force further away from the centre of the hub while also providing greater thermal capacity.

This becomes particularly beneficial during repeated heavy braking, where managing the heat generated by the braking system becomes increasingly important.

The 280mm package is particularly suited to:

• Modified K12s
• Fast-Road Cars
• Track-Day Cars
• Engine-Swapped Vehicles
• Turbocharged / Supercharged Builds
• Performance Road Cars
• Vehicles Running Modern Performance Tyres

A big brake kit does not guarantee a specific reduction in stopping distance. Final braking performance depends on the complete vehicle, including tyres, pad compound, brake fluid, suspension setup, vehicle weight and available grip.

Hi-Spec Billet Brake Calipers

The kit uses a pair of Hi-Spec billet brake calipers combined with our application-specific GizFab mounting adapters.

The caliper and adapter package has been designed around the 280mm disc arrangement while remaining compact enough to work with the wheel sizes commonly fitted to modified K12s.

GizFab Billet Caliper Adapters

The critical interface between the Hi-Spec calipers and the K12 hub assembly is provided by our own purpose-designed caliper adapters.

Each adapter is:

• Billet Machined
• Precision Manufactured
• Anodised
• Supplied with the Required Mounting Hardware

The adapters have been designed specifically around the K12 application rather than adapting a generic brake conversion to fit.

⚠️ Wheel Clearance - Please Read

The kit has been designed to fit underneath suitable 15" wheels.

We have also confirmed fitment underneath many 14" aftermarket wheels.

However:

WHEEL DIAMETER ALONE DOES NOT GUARANTEE BRAKE CALIPER CLEARANCE.

Two wheels with exactly the same diameter, width and even offset can provide very different brake clearance due to their internal shape.

Compatibility depends on factors including:

• Internal Wheel Barrel Diameter
• Spoke Profile
• Spoke Curvature
• Wheel Offset
• Wheel Width
• Caliper-to-Spoke Clearance
• Wheel Construction

Some wheels may require a spacer to provide sufficient spoke-to-caliper clearance.

We cannot guarantee that every 14" or 15" wheel will clear this brake kit.

Wheel clearance should be checked before installation where compatibility is uncertain.

Choice of Brake Disc Styles

A pair of 280mm brake discs is included with the kit.

A selection of alternative disc styles is available at additional cost, allowing the brake package to be configured around the customer's intended use and appearance preferences.

Different disc styles should be selected around the actual application rather than assuming the most aggressive-looking option automatically provides the best braking performance.

Choice of Brake Pad Compounds

A set of brake pads is included, with alternative compounds available at additional cost.

Pad selection can dramatically alter how a braking system behaves.

Road-Focused Compounds

Typically prioritise:

• Good Cold Bite
• Progressive Pedal Response
• Lower Noise
• Everyday Usability

Track-Focused Compounds

May prioritise:

• Higher Operating Temperatures
• Increased Fade Resistance
• Repeated Heavy Braking Performance

However, aggressive compounds may also produce increased noise, brake dust and disc wear and may perform differently when cold.

Choose the compound based on how the vehicle will actually be used.

Braided Brake Hoses Included

The kit includes the required braided brake hoses and associated fittings.

Braided hoses help reduce hose expansion under hydraulic pressure compared with ageing conventional rubber hoses, helping provide a more consistent and direct pedal response.

During installation, the hoses must be routed carefully to prevent contact with:

• Wheels & Tyres
• Driveshafts
• Suspension Components
• Steering Components
• Other Moving Parts

Clearance must be checked throughout the complete steering and suspension range.

Big Brakes Still Need Good Tyres

A larger brake package can provide greater thermal capacity and improved resistance to fade during repeated braking.

However, the braking system can ultimately only use the grip available between the tyre and road surface.

Overall braking performance will still depend heavily on:

• Tyre Compound
• Tyre Condition
• Road / Track Surface
• Suspension Setup
• Vehicle Weight
• Brake Balance
• Brake Fluid
• Pad Compound
• Driver Input

The brake system should therefore be considered as part of the complete vehicle setup.

Professional Installation Required

Braking components are safety-critical and this kit should be installed by a suitably qualified or experienced professional.

During installation, the complete braking system should be inspected, including:

• Hubs & Wheel Bearings
• Brake Master Cylinder
• Rear Brakes
• Brake Fluid
• Hard Brake Lines
• Flexible Hoses
• Caliper Mounting Points
• Wheel Studs & Hardware
• Wheels & Tyres

All mounting hardware must be correctly torqued and the hydraulic system thoroughly bled before the vehicle is returned to use.

Bedding-In

New brake discs and pads require an appropriate bedding procedure.

The correct procedure will depend on the pad compound selected.

Avoid immediately subjecting brand-new discs and pads to repeated maximum-effort braking unless specifically required by the pad manufacturer's bedding procedure.

Correct bedding helps establish an appropriate friction surface between the new pads and discs.

What's Included?

• 2x Hi-Spec Billet Brake Calipers
• 2x 280mm Brake Discs
• 1x Set of Brake Pads
• 2x GizFab Billet-Machined & Anodised Caliper Adapters
• Caliper Adapter Hardware
• Braided Brake Hoses
• Required Brake Hose Fittings

Alternative disc styles and pad compounds are available at additional cost.

12-Month Warranty*

GizFab Motorsport Developments manufactured components within this kit are warranted to the original purchaser against defects in materials and workmanship for a period of 12 months from purchase.

Our obligation under this warranty is limited to repair or replacement, at our discretion, where inspection confirms a manufacturing or material defect.

Hi-Spec calipers and other third-party manufactured components remain subject to their respective manufacturer's applicable warranty terms.

Brake discs and pads are friction components and will naturally wear during use. Normal friction material wear, pad wear and other consumable deterioration are not manufacturing defects.

Warranty does not cover incorrect installation, accident or impact damage, motorsport accident damage, incorrect bedding, unsuitable brake fluid, seized or defective surrounding braking components, wheel-to-caliper contact, excessive heat caused by incorrect setup or use outside the intended specification.

GizFab Motorsport Developments is an independent aftermarket manufacturer and retailer and is not affiliated with, sponsored by, approved by or endorsed by Nissan Motor Co., Ltd. or Hi-Spec Motorsport. Nissan, Micra and Hi-Spec names are used solely for vehicle, component and compatibility identification purposes.