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Representative image of an RCScrewZ metal-shielded bearing kit for Ofna Ultra MBX Pro 1/8 Buggy (#34312); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Ofna Ultra MBX Pro 1/8 Buggy (#34312); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Ofna Ultra MBX Pro 1/8 Buggy (#34312); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Ofna Ultra MBX Pro 1/8 Buggy (#34312); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Ofna Ultra MBX Pro 1/8 Buggy (#34312); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Ofna Ultra MBX Pro 1/8 Buggy (#34312); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Ofna Ultra MBX Pro 1/8 Buggy (#34312); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Ofna Ultra MBX Pro 1/8 Buggy (#34312); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Ofna Ultra MBX Pro 1/8 Buggy (#34312); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Ofna Ultra MBX Pro 1/8 Buggy (#34312); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Ofna Ultra MBX Pro 1/8 Buggy (#34312); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Ofna Ultra MBX Pro 1/8 Buggy (#34312); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Ofna Ultra MBX Pro 1/8 Buggy (#34312); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Ofna Ultra MBX Pro 1/8 Buggy (#34312); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Ofna Ultra MBX Pro 1/8 Buggy (#34312); exact bearing sizes and quantities vary by RC model.

RCScrewZ Metal Shielded Bearing Kit ofn011b for Ofna MBX Pro 1/8th Buggy RC Car | RCX

RCScrewZ

SKU: ofn011b

Regular price
$53.67
Sale price
$53.67
Regular price
$59.95
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Quick snapshot of availability, estimated delivery, and our shipping/returns.

Available Quantity: 100

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

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This page shows the Metal-Shielded Bearing Kit for this RC model — view all compatible Screw and Bearing kits for this RC model by clicking this link:

Ofna Ultra MBX Pro 1/8 Buggy (#34312) — Compatible Kits by RCScrewZ (Screws & Bearings)

Pro tip: Most builders grab a Stainless Screw Kit and a Bearing Kit for this RC model so everything wears evenly.

Quick Fit Summary
  • Compatible Brand: OFNA Racing
  • RC Model: Ofna Ultra MBX Pro 1/8 Buggy (#34312)
  • Scale: 1:8
  • Power Source / Fuel Type: Nitro & Glow Fuel
  • Chassis: Shaft-driven, Alloy Plate Chassis With Gear Differentials
  • Era: Modern Transition (2000-2009)
Quick Fit Summary — Full Details

Quick Fit Summary

Key fit details for your RC model, plus what’s in this kit.

RC Model Fit & Specs

  • Compatible Brand: OFNA Racing
  • Fit: Ofna Ultra MBX Pro 1/8 Buggy (#34312)
  • Scale: 1:8
  • Power Source / Fuel Type: Nitro & Glow Fuel
  • Vehicle Type: Off-road Racing Buggy
  • Chassis: Shaft-driven, Alloy Plate Chassis With Gear Differentials
  • Era: Modern Transition (2000-2009)
  • RC Model Terrain: Off-road Racing

This Kit Details

  • SKU: ofn011b
  • MPN: ofn011b
  • Product: Track Racing Bearing Upgrade Kit
  • Bearing Type: Metal-Shielded (On-Road)
  • Sealed Bearings: No
  • Water/Dust Protection: Low-drag, not sealed
  • Product Material: Carbon Chrome Bearings
  • Product Color: Silver
  • Bearing Sizes Included: 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!
  • Tips: Seat fully · Do not over-tighten · After cleaning: add light oil
  • Install: ≈60 min; recheck torque after first run
  • Country of Origin: United States
Full Product Description

Exact RC Model Fitment

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

Compatible RC Model
Ofna Ultra MBX Pro 1/8 Buggy (#34312)
Compatible RC Brand
OFNA Racing
RC Vehicle OEM / Model Number(s)
RCScrewZ Kit Part Number
ofn011b

Vehicle Compatibility Details

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

RC Vehicle OEM / Model Number(s)
RC Chassis Compatibility
Shaft-driven, Alloy Plate Chassis With Gear Differentials
Compatible Vehicle Type
Off-road Racing Buggy
Terrain Compatibility
Compatible Scale
1:8
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

This Metal Shielded Bearing Kit is designed for the Ofna Ultra MBX Pro (#34312) 1/8th scale nitro buggy, optimized for street racing and on-road use.

  • Compatible Model: Ofna Ultra MBX Pro
  • Compatible Scale: 1/8th
  • Compatible Fuel Type: Nitro
  • Compatible Vehicle Type: Buggy
  • Release Date: 2001

Enhance your buggy's performance with this precision bearing kit, built for competitive racing and smooth operation.

 

All Bearings Are Included + (1) Extra of Every Size for Spares:

Metal-Shielded Bearing Kit Details

Review the bearing-kit details below before ordering.

RCScrewZ Kit Part Number
ofn011b
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.

Fits: Ofna Ultra MBX Pro 1/8 Buggy (#34312)
$53.67
Back to Ofna Ultra MBX Pro 1/8 Buggy (#34312) — Compatible Kits by RCScrewZ (Screws & Bearings)

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