Front Brake Disc for HYUNDAI I30

The same brake disc delivers vastly different performance expectations when fitted on an SUV versus a sports sedan. This 305mm ventilated brake disc boasts extensive compatibility with Korean vehicles. We analyze its actual performance under three most common driving conditions

Scenario 1: Pickup Trucks & Off-road SUVs - Hyundai Tucson, Kia Sportage
Drivers of Tucson and Sportage often carry loads on roof racks all year round. They frequently travel off-road for family camping trips on weekends. Extra passenger and cargo weight lowers the rear axle and raises the overall vehicle curb weight. Under heavy loads, the heat capacity and heat dissipation capacity of the front brake disc become critical indicators.
When traveling on long downhill slopes or winding mountain roads, the brake disc temperature can easily exceed 400 degrees Celsius. The internal ventilated structure of this disc delivers outstanding performance. Its standard 25mm thickness stores substantial heat, while evenly arranged internal ventilation ribs generate steady air flow during driving to dissipate heat rapidly and effectively slow down brake heat fade. Even when dust and gravel invade friction surfaces on rough roads, the uniform material density prevents scratches and hard spots, ensuring reliable braking performance.

Scenario 2: Japanese and Korean Family Sedans - Hyundai Elantra, Kia K3
For daily urban commuters driving Elantra or K3, comfortable and quiet braking tops all demands. Many Elantra owners complain about gurgling or sharp squealing noises during low-speed stops on automotive forums, mostly caused by poor matching precision between discs and pads or uneven disc surfaces.
Front brake disc for Front brake disc for HYUNDAI I30 NO. 51712C2000
features precisely machined surfaces with roughness controlled within Ra 1.0-2.0μm. Matched with qualified ceramic brake pads, it provides smooth braking feedback from acceleration to full stop, eliminating abrupt braking impact and annoying high-pitched squeaks. The consistent linear braking feel during frequent light braking in heavy traffic greatly enhances the driving experience.

Scenario 3: High-performance Sports Models - Hyundai Sonata Sport Version, Kia K5
The high-power 2.0T Sonata and K5 impose heavy strain on front brake systems during acceleration and high-speed cruising. Hard braking converts kinetic energy into massive heat, sending disc temperatures soaring within seconds.
Every disc undergoes individual dynamic balance calibration before leaving the factory, preventing annoying steering wheel vibration during mild braking at 100 kilometers per hour. Made of HT250 high-carbon gray cast iron, it offers excellent thermal fatigue resistance and resists minor warping from frequent temperature changes. Its stable performance fully meets demands of aggressive daily driving, provided drivers avoid immediate water flushing on hot discs after mountain road travel.

The front brake disc for HYUNDAI 51712C2000 is compatible with a wide range of cars, as follows:

There are different corresponding codes for the front brake disc for HYUNDAI 51712C2000

This product adopts Geomet 321 chromium-free zinc-aluminum coating combined with mirror finishing on friction surfaces for composite surface treatment. Different from traditional electrophoretic and spray coatings, it boasts the following unique advantages:

Our machining workshop is the core of brake disc production. It is equipped with advanced CNC machining equipment to ensure high - precision processing. We adopt automated production lines to complete turning, grinding, and finishing processes, strictly controlling dimensional tolerance to guarantee installation accuracy.

Skilled technicians monitor the entire production process, reducing processing errors and ensuring stable product quality. The workshop is equipped with professional testing equipment to detect the flatness and dynamic balance of each brake disc, avoiding potential safety hazards.
We have 18 years of professional experience in manufacturing Korean - style brake discs. Our workshop holds dual certifications of IATF - 16949 and AMECA. We produce high - quality brake products exclusively for Hyundai and Kia platforms. Compared with ordinary brake disc production workshops, we boast the following core advantages:

1. Exclusive Production Lines and Process Superiorities

• Lost Foam Casting Process: Advanced lost foam negative pressure casting technology is applied. The surface roughness of castings reaches Ra6.3μm. Internal porosity and shrinkage cavity defects are reduced by over 90%, and material compactness is greatly improved.
• Korea - specialized Molds: There is an independent mold library dedicated to Hyundai LF/GK platforms. Each mold is replaced after producing no more than 5,000 discs to maintain consistent dimensional accuracy.
• Special Machining of Spiral Ventilated Ribs: German - imported five - axis linkage machining centers process 36 unequally spaced spiral ventilated ribs in one go, with a ventilation uniformity error of no more than 2%.
• 100% Thermal Crack Inspection: Every brake disc undergoes ultrasonic flaw detection to thoroughly eliminate internal thermal cracks, achieving a factory pass rate of 99.9%.

2. Key Machining Details

• Casting Process: The molten iron temperature is strictly controlled at 1420 ± 10℃. Inoculation during pouring ensures fine and uniform graphite flakes, with a steady hardness ranging from HB190 to HB230.
• Turning Process: Dual - end synchronous turning technology is adopted. Both sides are processed in a single clamping, keeping parallelism within 0.02mm and avoiding errors caused by repeated clamping.
• Drilling Process: Five mounting holes are positioned and drilled at one time by CNC drilling machines. The hole spacing error is no more than 0.08mm, and the concentricity of positioning holes stays within 0.02mm.
• Dynamic Balancing Process: Integrated automatic dynamic balancing detection and correction machines are used, delivering a balancing precision of up to 9g·cm, which is far superior to industrial standards.

We focus on efficient production, supporting batch supply, which can meet the export demand of global auto parts wholesalers. Our professional machining capability ensures stable output, providing reliable, high - quality brake discs for long - term global cooperation.

Q: I often drive my Hyundai Tucson fully loaded on winding mountain roads. Can the brake discs withstand high temperatures during long downhill drives?

A: This is where ventilated brake discs excel. Tailored for heavyweight and high-inertia SUVs like the Tucson, the cooling fins of model 51712C2000 continuously draw in cold air as wheels rotate, dissipating core heat from the discs. Note that if brake pads develop a glossy glazed surface and abnormal noise after repeated high-temperature use, it indicates brake pad heat fade rather than brake disc failure. Conduct regular inspections. Replace the discs promptly if groove depth exceeds 0.5mm or lateral runout goes beyond standard limits. Routine inspection is recommended every 20,000 kilometers, while frequent fully-loaded mountain driving shortens the interval to 12,000 kilometers. Replace discs in advance when thickness drops to 23.0mm to guarantee sufficient running-in space for new brake pads.

Q: The steering wheel shakes left and right slightly when I brake at speeds over 100km/h in my Kia K5. Will replacing with this brake disc fix the issue?

A: 90% of high-speed braking steering wheel vibration stems from unqualified dynamic balance or microscopic lateral warpage of front brake discs. This product is made of GG25HC high-density gray cast iron. Every single disc undergoes automatic dynamic balance trimming before delivery, with precision kept within 10g·cm. As long as the hub mounting surface is cleaned free of rust and wheel bolts are tightened diagonally with torque ranging from 110 to 120 N·m, such annoying vibration will mostly disappear.

Q: My newly replaced brake pads still have substantial thickness. Can I only replace the 51712C2000 brake disc this time?

A: It is strongly not recommended. Brake pads and discs form a mutually worn friction pair. Old pads form specific microscopic wear marks matching old discs. Fitting them directly onto smooth new discs results in minimal contact area, which greatly weakens braking force and causes abnormal noise. Saving money on brake pads will usually lead to uneven wear and early scrapping of new discs, which is not cost-effective.

Q: Is this brake disc compatible with the brake caliper bracket of Hyundai Sonata (YF)? Does bracket replacement need to be done?

A: No replacement is required. Model 51712C2000 is a direct original equipment replacement part. With a diameter of 305mm, center bore of 69mm and bolt pattern of 5×114.3, it perfectly fits the original single-piston floating caliper and bracket, allowing direct installation after removing old discs.

We are pleased to announce that our factory has completed the upgrade of production equipment, which significantly improves the machining accuracy of brake discs. We have optimized the production line to ensure stable batch quality and faster delivery.
In addition, we have expanded the product range to cover more models, and strengthened quality inspection to reduce defective products. Our factory adheres to strict production standards, ensuring that every brake disc meets export requirements, and we are committed to providing high-quality products and intimate service for global customers.

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