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Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Mega Force 1/10 Nitro 4WD Monster Truck (31181); exact bearing sizes and quantities vary by RC model.

Upgrade Your RC Car with Metal Shielded Bearings for Kyosho Mega Force 31181 RC | kyo049b - 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 - kyo049b

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 - kyo049b

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 - kyo049b

RCScrewZ and J-M SUPPLIES offer high-quality RC bearing kits, available as metal shielded or rubber sealed options, suitable for diverse RC needs - kyo049b

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 - kyo049b

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 - kyo049b

Infographic reminder: Refer to the item description for more detailed information about the product - kyo049b

Notice: Check the product description for detailed information on the specific bearing sizes included in this bearing kit - kyo049b

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 kyo049b for Kyosho Mega Force 1/10 Nitro 4WD Monster Truck (31181) | SET

Name: RCScrewZ Metal Shielded Bearing Kit kyo049b for Kyosho Mega Force 1/10 Nitro 4WD Monster Truck (31181) | SET
Brand: RCScrewZ
SKU: kyo049b
Price: 53.67 USD
Availability: InStock

RCScrewZSKU: kyo049b

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

Fits: Kyosho Mega Force 1/10 Nitro 4WD Monster Truck (31181)
OEM / model: 31181

Regular price: $53.67
Sale price: $53.67
Regular price: ~~$59.95~~
Unit price: per

In stock

View Cart

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

RC model: Kyosho Mega Force 1/10 Nitro 4WD Monster Truck (31181)
OEM / model number: 31181

Kit type: Metal-Shielded Bearing Kit — Low-Drag for Cleaner Running
Scale: 1:10
Power: Nitro & Glow Fuel

View all verified kits for this model →

More compatibility details

RC brand: Kyosho
Vehicle class: Land
Kit SKU: kyo049b
Model series: Mega Force, Mad Force

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 assigned to 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

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: Kyosho Mega Force 1/10 Nitro 4WD Monster Truck (31181)
Compatible RC Brand: Kyosho
RC Vehicle OEM / Model Number(s): 31181
RCScrewZ Kit Part Number: kyo049b

Vehicle Compatibility Details

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

RC Vehicle OEM / Model Number(s): 31181
RC Chassis Compatibility: Kyosho Mega Force shaft-driven 4WD monster truck chassis (31181)
Compatible Vehicle Type: 1/10 Nitro 4WD Monster Truck
Terrain Compatibility
Compatible Scale: 1:10
Compatible Fuel Type: Nitro & Glow Fuel

What Is Included

Included bearing sizes for this Metal-Shielded Bearing Kit:

Note: The specific bearing sizes will be listed soon. In the meantime, please contact us for detailed information about the sizes included in this kit. We're happy to assist you!

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: Kyosho
Fit: Model-specific fitment for Kyosho Mega Force.
Compatible RC Model/OEM Numbers: Kyosho Mega Force (31181)
Scale: 1/10
Power Source / Fuel Type: Nitro
Battery / Cell Count: Not applicable - nitro powered.
Drive Type: 4WD
Vehicle Type: 1/10 Nitro 4WD Monster Truck
Chassis: Kyosho Mega Force shaft-driven 4WD monster truck chassis (31181)
Era: Modern Transition (2000-2009)
OEM / Models: 31181
RC Model Terrain: Off-Road: Dirt, Grass & Monster Truck Terrain

This Kit Details:

SKU: kyo049b
MPN: kyo049b
Kit Type: Metal Shielded Bearing Kit
Bearing Type: Metal-Shielded Bearings (On-Road / Low-Drag)
Sealed Bearings: No
Water/Dust Protection: Low-drag, not sealed
Bearing Size Details: Not currently verified.
Product Material: Carbon Chrome Steel Bearings
Product Color: Silver

OEM / Model Code / Alias Coverage:

Compatible with Kyosho OEM/model number(s) 31181. Use the OEM/model number in your manual, box, or chassis paperwork to confirm fitment before ordering.

Model Family Coverage:

Mega Force, Mad Force

Product Benefits:

Metal shielded bearings are tuned for lower rolling resistance and smoother drivetrain rotation on cleaner surfaces.
Best choice for on-road, carpet, display builds, light-duty use, or racers who prefer low-drag performance over maximum contamination protection.
Maintenance tip: clean and re-oil metal shielded bearings regularly for best performance.

Fitment Note:

This is a model-specific RCScrewZ kit for Kyosho Mega Force. Match your Kyosho OEM/model number or model series to 31181 before ordering.

Search-Friendly Notes:

Common buyer searches include Kyosho Mega Force parts, Kyosho Kyosho Mega Force screw kit, Kyosho Kyosho Mega Force bearings, and Kyosho RC replacement hardware.