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Representative image of an RCScrewZ metal-shielded bearing kit for HPI Racing RS4 Mini Pro Mazda MX-5 Miata 1/10 4WD (296); exact bearing sizes and quantities vary by RC model.
Upgrade Your RC Car with Metal Shielded Bearings for HPI RS4 Mini Pro Mazda | hpi021b - High Performance Upgrade | Durable & Reliable - by J-M SUPPLIES
Infographic: 'Choose Wisely for Your Need for Speed' – Highlights Metal Shielded Bearings as the top choice for unbeatable on-road RC car performance -
Infographic: 'Choose Wisely for Off-Road Adventuring' – Recommends Rubber Sealed Bearings for maximum protection and enhanced off-road performance in RC vehicles -
Infographic: 'Choose Wisely for Off-Road Adventuring' – Recommends Rubber Sealed Bearings for maximum protection and enhanced off-road performance in RC vehicles -
Infographic: 'Choose Wisely for Off-Road Adventuring' – Recommends Rubber Sealed Bearings for maximum protection and enhanced off-road performance in RC vehicles -
Infographic: 'Choose Wisely for Your Need for Speed' – Highlights Metal Shielded Bearings as the top choice for unbeatable on-road RC car performance - hpi021b
Infographic: 'Choose Wisely for Off-Road Adventuring' – Recommends Rubber Sealed Bearings for maximum protection and enhanced off-road performance in RC vehicles - hpi021b
Infographic: 'What Matters Most to You? Performance on the Streets or Durability in the Dirt?' – Guides on selecting bearings to match your RC lifestyle, highlighting the importance of choosing based on whether your focus is speed on paved roads or resilience in off-road conditions - hpi021b
Infographic: 'Need Bearings? How to Check Your RC's Bearings for Replacement' – Instructions to remove, clean, and inspect bearings for gritty texture or improper movement, indicating the need for replacement - hpi021b
Step-by-Step Guide: Checking RC Bearings. 2. Assess if bearings feel gritty or aren't spinning freely. 3. Non-free spinning bearings impair RC performance. 4. Bearings not spinning freely may need replacement - hpi021b
RCScrewZ and J-M SUPPLIES offer high-quality RC bearing kits, available as metal shielded or rubber sealed options, suitable for diverse RC needs - hpi021b
Elevate Your RC Adventure! Image introducing Stainless Screw Kits as the Ultimate Upgrade. Offers enhanced durability, superior corrosion resistance, and a sleek look, making them a top choice for complementing high-quality bearing selections. Trusted by RC enthusiasts worldwide - hpi021b
Infographic on RCScrewZ Bearing Kits: Highlights features of both metal and rubber shielded bearing kits, detailing high-quality components suitable for various RC models. Covers standard, flanged, one-way, and thrust bearings included in kits, with extra spares. Explains the shielding and performance benefits of each type, tailored for specific RC model needs - hpi021b
Infographic reminder: Refer to the item description for more detailed information about the product - hpi021b
Infographic reminder: Refer to the item description for more detailed information about the product - hpi021b
Notice: Check the product description for detailed information on the specific bearing sizes included in this bearing kit - hpi021b
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi021b for HPI Racing RS4 Mini Pro RC Car | UPG

Why Choose This Kit

Key features and intended use for this kit.

Shield type

Metal-Shielded (On-Road)

Performance focus

Low-drag, not sealed

Best suited for

Cleaner on-road / prepared surfaces

Metal-Shielded Bearings

RCScrewZ Metal Shielded Bearing Kit hpi021b for HPI Racing RS4 Mini Pro 1/10 Electric 4WD Mini Rally / Touring Car (#296, HPI296) | SET

RCScrewZSKU: hpi021b

Model-specific metal-shielded bearings for smooth, low-drag operation on cleaner on-road or prepared surfaces.

Fits: HPI Racing RS4 Mini Pro Mazda MX-5 Miata 1/10 4WD (296)
OEM / model: 296, HPI296

US
Regular price
$38.94
Sale price
$38.94
Regular price
$43.95

In stock

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Confirm this kit fits your RCMatch the RC model and OEM/model number shown above to your vehicle.

Exact model check

Confirm This Fits Your RC

Match the RC model and OEM/model number below before ordering.

RC model
HPI Racing RS4 Mini Pro Mazda MX-5 Miata 1/10 4WD (296)
OEM / model number
296, HPI296
Kit type
Metal-Shielded Bearing Kit — Low-Drag for Cleaner Running
Scale
1:10
Power
Electric
View all verified kits for this model →
More compatibility details
RC brand
HPI Racing
Vehicle class
Land
Kit SKU
hpi021b
Model series
RS4 Mini
Product information

Everything You Need Before Ordering

Review what is included, installation notes, shipping details, and complete kit information.

Kit Contents & Installation

What’s Included Model-specific bearing set with one spare of each included size.
  • All bearing sizes listed below for this model-specific kit
  • One spare of each included size
  • Bearing styles vary by RC model and may include standard, flanged, one-way, or thrust bearings

Included bearing sizes for this kit:

    • 4x8x3mm (5)
    • 5x8x2.5mm (5)
    • 5x11x4mm (11)
    • 10x15x4mm (7)
Installation & Model NotesImportant instructions and model-specific guidance.

Seat bearings fully and squarely. Do not force them into the housing or overtighten the hardware that retains them.

Keep metal-shielded bearings clean and dry.

After cleaning and drying, apply a small amount of light bearing oil.

Details & Support

Kit Details Lower-drag metal shields for clean, dry running conditions.
Shield Type
Metal-Shielded Bearings
Performance Priority
Lower drag
Protection
Not sealed; best kept clean and dry
Best For
Cleaner on-road or prepared surfaces when lower drag is the priority
Not Ideal For
Dust, dirt, sand, mud, water, or frequent wet-condition use
Prefer Rubber-Sealed?
Choose Rubber-Sealed bearings for off-road use, dust, dirt, sand, mud, water exposure, or lower-maintenance protection.
Shipping & Returns Handling time, current delivery estimate, and return policy.
Free shipping on all U.S. orders (USPS Priority Mail).
Ships within 1–2 business days (Mon–Fri); some Saturday shipments by 12:00 PM ET.
Most orders ship from Canton, MI 48187. APO/FPO/DPO & PO Boxes welcome.
Priority Mail typically delivers in 2–3 business days (estimates; not guaranteed).
Easy 30-day returns with prepaid USPS label; refunds issued within 3 business days after the return is received.

Over 99% positive over ~14,000 orders on eBay (last 12 months) — as of October 2025. View on eBay

Full Product Description Read the complete product specifications and details.

Exact RC Model Fitment

Confirm the exact RC model and RC vehicle OEM/model number below before ordering.

Compatible RC Model
HPI Racing RS4 Mini Pro Mazda MX-5 Miata 1/10 4WD (296)
Compatible RC Brand
HPI Racing
RC Vehicle OEM / Model Number(s)
296, HPI296
RCScrewZ Kit Part Number
hpi021b

Vehicle Compatibility Details

Review these vehicle details to help confirm compatibility with your RC model.

RC Vehicle OEM / Model Number(s)
296, HPI296
RC Chassis Compatibility
Not currently verified.
Compatible Vehicle Type
Rally/Touring Car
Terrain Compatibility
Compatible Scale
1:10
Compatible Fuel Type
Electric

What Is Included

Included bearing sizes for this Metal-Shielded Bearing Kit:

    • 4x8x3mm (5)
    • 5x8x2.5mm (5)
    • 5x11x4mm (11)
    • 10x15x4mm (7)

What Is Not Included

Only the bearings identified in the included-bearing-size list are part of this kit. 

The RC vehicle and separately sold parts are not included unless specifically listed.

Installation & Model Notes

Compatibility Title: HPI Racing RS4 Mini Pro Mazda MX-5 Miata / Mazda Roadster Metal Shielded Bearing Kit Compatibility

Quick Fit Summary:

  • Compatible Brand: HPI Racing

  • Fit: Model-specific for the listed RC model/platform: HPI Racing RS4 Mini Pro Mazda MX-5 Miata / Mazda Roadster

  • Compatible RC Model/OEM Numbers: 296, HPI296

  • Scale: 1/10

  • Power Source / Fuel Type: Electric

  • Battery / Cell Count: Not currently verified.

  • Drive Type: 4WD

  • Vehicle Type: Rally/Touring Car

  • Chassis: Not currently verified.

  • Era: Not currently verified.

  • OEM / Models: HPI Racing RS4 Mini Pro Mazda MX-5 Miata / Mazda Roadster / 296, HPI296

  • RC Model Terrain: On-Road

This Kit Details:

  • SKU: hpi021b

  • MPN: hpi021b

  • Bearing Type: Metal-Shielded Bearings (On-Road / Low-Drag)

  • Bearing Sizes Included: Not currently verified.

  • Sealed Bearings: No

  • Water/Dust Protection: Low-drag, not sealed

  • Product Material: Carbon Chrome Steel Bearings

  • Product Color: Silver

Release / Catalog Date: Not currently verified.

OEM / Model Code / Alias Coverage:

  • 296

  • HPI296

Scale: 1/10

Fuel Type: Electric

Vehicle Type: Rally/Touring Car

Chassis: Not currently verified.

Terrain Compatibility: On-Road

Production Era: Not currently verified.

Product Benefits: This HPI metal shielded bearing kit supports reduced friction, smooth rolling performance, and low-drag drivetrain feel for HPI Racing RS4 Mini Pro Mazda MX-5 Miata / Mazda Roadster. Metal shielded bearings are best for clean, dry, low-debris running surfaces such as on-road, carpet, asphalt, touring, race prep, or controlled track conditions.

Fitment Note: Match each included bearing size to the removed factory bearing and confirm smooth rotation before final assembly. This kit is model-specific for the listed RC model/platform; verify your OEM/model number before ordering and before installation.

Metal-Shielded Bearing Kit Details

Review the bearing-kit details below before ordering.

RCScrewZ Kit Part Number
hpi021b
Product Brand
RCScrewZ
Shielding Type
Metal-Shielded (On-Road)
Sealed Bearing Status
No
Bearing Material
Carbon Chrome Bearings
Approximate Piece Count
Color
Silver

Before Ordering

  • Confirm your exact RC model, RC brand, and OEM/model number whenever possible.
  • Review the included-bearing-size list before purchase.
  • Read the installation and model notes before disassembly or installation.

Vehicle versions, chassis revisions, and model-year configurations can differ. 

Confirm fitment before purchase when your RC vehicle differs from the details shown above.

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Current price: $33.97 Compare-at price: $34.95 Save $0.98 In stock View Stainless Screw Kit

Rubber-Sealed Bearing Kit

For HPI Racing RS4 Mini Pro Mazda MX-5 Miata 1/10 4WD (296) OEM/model: 296, HPI296
Current price: $38.94 Compare-at price: $43.95 Save $5.01 In stock View Rubber-Sealed Kit
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Fits: HPI Racing RS4 Mini Pro Mazda MX-5 Miata 1/10 4WD (296)
$38.94