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Representative image of an RCScrewZ rubber-sealed 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 Rubber Shielded Bearings for Losi Super Rock Rey V2 8S | los121r - 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: '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 - los121r

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 - los121r

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 - los121r

RCScrewZ and J-M SUPPLIES offer high-quality RC bearing kits, available as metal shielded or rubber sealed options, suitable for diverse RC needs - los121r

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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 - los121r

Infographic reminder: Refer to the item description for more detailed information about the product - los121r

Notice: Check the product description for detailed information on the specific bearing sizes included in this bearing kit - los121r

Why Choose This Kit

Key features and intended use for this kit.

Shield type

Rubber-Sealed (Off-Road)

Protection focus

Sealed against dirt & splash

Best suited for

Off-road / dirty conditions

Rubber-Shielded Bearings

RCScrewZ Rubber Shielded Bearing Kit los121r for Losi Super Rock Rey V2 8S RTR 1/6 Electric 4WD Brushless Rock Racer (LOS05016V2) | SET

Name: RCScrewZ Rubber Shielded Bearing Kit los121r for Losi Super Rock Rey V2 8S RTR 1/6 Electric 4WD Brushless Rock Racer (LOS05016V2) | SET
Brand: RCScrewZ
SKU: los121r
Price: 69.88 USD
Availability: InStock

RCScrewZSKU: los121r

Rubber-shielded bearings for land-based RC use where added protection from dust, dirt, sand, and mud is preferred.

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

Regular price: $69.88
Sale price: $69.88
Regular price: ~~$79.95~~
Unit price: per

In stock

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

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

Kit type: Rubber-Shielded Bearing Kit — Sealed for Off-Road Protection
Scale: 1:6
Power: Electric

View all verified kits for this model →

More compatibility details

RC brand: Losi
Vehicle class: Land
Kit SKU: los121r
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 NotesInstallation, cleaning, inspection, and model-specific guidance.

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

After use, clean the bearing exterior and dry it thoroughly. Inspect and service as needed.

Inspect the bearings for roughness, binding, noise, or excessive play before reuse; service or replace them as needed.

Details & Support

Kit Details Rubber-sealed protection against dirt, dust, and debris.

Seal Type: Rubber-Sealed Bearings
Protection Priority: Sealed protection against dirt, dust, and debris
Best For: Off-road, dusty, or dirty conditions where debris protection is the priority
Performance Tradeoff: Protection is prioritized over the lowest possible drag
Not Ideal For: Clean, dry on-road or prepared-surface use when lower drag is the priority
Prefer Metal-Shielded?: Choose Metal-Shielded bearings for cleaner on-road or prepared surfaces when lower drag is the priority.

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: los121r

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 Rubber-Sealed 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

Rubber 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: los121r
MPN: los121r
Kit Type: Rubber Shielded Bearing Kit
Bearing Type: Rubber-Shielded (Off-Road / Sealed)
Sealed Bearings: Yes
Water/Dust Protection: Sealed protection against dirt, dust, and debris
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:

Rubber shielded bearings add sealed protection against dirt, dust, and debris for off-road, dusty, dirty, outdoor, bashing, racing, trail, desert, gravel, or debris-prone RC use.

Reason to Purchase: Choose rubber shielded bearings when sealed protection matters more than the lowest possible rolling drag. They are the better choice for dusty, dirty, off-road, desert, clay, gravel, and outdoor RC running compared with metal shielded bearings tuned for lower drag.

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.