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Representative image of an RCScrewZ metal-shielded bearing kit for Losi Super Rock Rey V2 1/6 Electric 4WD Rock Racer (LOS05016V2); exact bearing sizes and quantities vary by RC model.
Upgrade Your RC Car with Metal Shielded Bearings for Losi Super Rock Rey V2 8S | los121b - 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 Your Need for Speed' – Highlights Metal Shielded Bearings as the top choice for unbeatable on-road RC car performance - los121b
Infographic: 'Choose Wisely for Off-Road Adventuring' – Recommends Rubber Sealed Bearings for maximum protection and enhanced off-road performance in RC vehicles - los121b
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 - los121b
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 - los121b
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 - los121b
RCScrewZ and J-M SUPPLIES offer high-quality RC bearing kits, available as metal shielded or rubber sealed options, suitable for diverse RC needs - los121b
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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 - los121b
Infographic reminder: Refer to the item description for more detailed information about the product - los121b
Infographic reminder: Refer to the item description for more detailed information about the product - los121b
Notice: Check the product description for detailed information on the specific bearing sizes included in this bearing kit - los121b

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 los121b for Losi Super Rock Rey V2 8S RTR 1/6 Electric 4WD Brushless Rock Racer (LOS05016V2) | SET

RCScrewZSKU: los121b

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

Fits: Losi Super Rock Rey V2 1/6 Electric 4WD Rock Racer (LOS05016V2)
OEM / model: LOS05016V2

US
Regular price
$69.88
Sale price
$69.88
Regular price
$79.95

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
Losi Super Rock Rey V2 1/6 Electric 4WD Rock Racer (LOS05016V2)
OEM / model number
LOS05016V2
Kit type
Metal-Shielded Bearing Kit — Low-Drag for Cleaner Running
Scale
1:6
Power
Electric
View all verified kits for this model →
More compatibility details
RC brand
Losi
Vehicle class
Land
Kit SKU
los121b
Model series
Super Rock Rey, Super Rock Rey V2, SRR
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 kit; review the listed sizes and quantities.
  • Model-specific bearing kit
  • Quantities and any spare bearings are included only when specifically confirmed in the product details.
  • Review the product-specific bearing sizes and styles below or in the full description.
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 when protection against dirt, dust, and debris matters more than the lowest possible drag.
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
Losi Super Rock Rey V2 1/6 Electric 4WD Rock Racer (LOS05016V2)
Compatible RC Brand
Losi
RC Vehicle OEM / Model Number(s)
LOS05016V2
RCScrewZ Kit Part Number
los121b

Vehicle Compatibility Details

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

RC Vehicle OEM / Model Number(s)
LOS05016V2
RC Chassis Compatibility
Losi Super Rock Rey V2 4WD Rock Racer
Compatible Vehicle Type
1/6 Electric 4WD Brushless Rock Racer
Terrain Compatibility
Compatible Scale
1:6
Compatible Fuel Type
Electric

What Is Included

Included bearing sizes for this Metal-Shielded Bearing Kit:

    • 4x8x3 bearings
    • 8x16x5 bearings
    • 10x19x5 bearings

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

Metal Shielded Bearing Kit Compatibility:

Quick Fit Summary:

  • Compatible Brand: Losi

  • Fit: Model-specific fitment for Losi Super Rock Rey V2 8S RTR

  • Compatible RC Model/OEM Numbers: LOS05016V2

  • Scale: 1/6

  • Power Source / Fuel Type: Electric

  • Battery / Cell Count: 8S

  • Drive Type: 4WD

  • Vehicle Type: Rock Racer

  • Chassis: Losi Super Rock Rey V2 4WD Rock Racer

  • Era: Next Gen Era (2020–Present)

  • OEM / Models: LOS05016V2

  • RC Model Terrain: Off-Road: Desert, Rock, Dirt & Bashing

Release / Reference Date: Review / Announcement Date: July 2021

This Kit Details:

  • SKU: los121b

  • MPN: los121b

  • Kit Type: Metal Shielded Bearing Kit

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

  • Sealed Bearings: No

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

  • Product Material: Carbon Chrome Steel Bearings

  • Product Color: Silver

Bearing Size Details:

  • 4x8x3mm bearings
  • 8x16x5mm bearings
  • 10x19x5mm bearings

OEM / Model Code / Alias Coverage:

  • Verified OEM / model codes: LOS05016V2

  • Series / search aliases: Super Rock Rey, Super Rock Rey V2, SRR

Model Family Coverage:

Losi Super Rock Rey V2 1/6 Electric 4WD Rock Racer (LOS05016V2)

Product Benefits:

Metal shielded bearings are best for clean, dry, low-debris running, bench rebuilds, display builds, and racers who prefer reduced friction and a lower-drag drivetrain feel.

Fitment Note:

Confirm your RC model and OEM number before ordering. This kit is matched to Losi Super Rock Rey V2 8S RTR and the listed OEM/model codes.

Search-Friendly Notes:

Compatible Losi and TLR parts support for Losi Super Rock Rey V2 1/6 Electric 4WD Rock Racer (LOS05016V2); useful for RC screw kit, RC bearing kit, rebuild, upgrade, race prep, and maintenance searches.

Metal-Shielded Bearing Kit Details

Review the bearing-kit details below before ordering.

RCScrewZ Kit Part Number
los121b
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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Stainless Screw Kit

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Current price: $69.88 Compare-at price: $79.95 Save $10.07 In stock View Stainless Screw Kit

Rubber-Sealed Bearing Kit

For Losi Super Rock Rey V2 1/6 Electric 4WD Rock Racer (LOS05016V2) OEM/model: LOS05016V2
Current price: $69.88 Compare-at price: $79.95 Save $10.07 In stock View Rubber-Sealed Kit
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Fits: Losi Super Rock Rey V2 1/6 Electric 4WD Rock Racer (LOS05016V2)
$69.88