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Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353); exact bearing sizes and quantities vary by RC model.

RCScrewZ Metal Shielded Bearing Kit kyo137b for Kyosho Inferno ST-RR 1/8 Nitro GP 4WD Off-Road Competition Truggy (31353) | SET

RCScrewZ

SKU: kyo137b

Regular price
$53.67
Sale price
$53.67
Regular price
$59.95
Shipping, stock & payment info
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:

Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353) — Find Compatible Stainless Screw & Bearing Kits

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: Kyosho
  • RC Model: Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353)
  • Scale: 1:8
  • Power Source / Fuel Type: Nitro & Glow Fuel
  • Chassis: Kyosho Inferno ST-RR Truggy Chassis (31353)
  • Era: Modern Transition (2000-2009)
  • OEM / Models: 31353
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: Kyosho
  • Fit: Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353)
  • Compatible RC Model Numbers: 31353
  • Scale: 1:8
  • Power Source / Fuel Type: Nitro & Glow Fuel
  • Vehicle Type: 1/8 Nitro GP 4WD Competition Truggy
  • Chassis: Kyosho Inferno ST-RR Truggy Chassis (31353)
  • Era: Modern Transition (2000-2009)
  • RC Model Terrain: Off-Road: Dirt, Clay & Truggy Tracks

This Kit Details

  • SKU: kyo137b
  • MPN: kyo137b
  • Product: RC Speed Bearing 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
Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353)
Compatible RC Brand
Kyosho
RC Vehicle OEM / Model Number(s)
31353
RCScrewZ Kit Part Number
kyo137b

Vehicle Compatibility Details

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

RC Vehicle OEM / Model Number(s)
31353
RC Chassis Compatibility
Kyosho Inferno ST-RR Truggy Chassis (31353)
Compatible Vehicle Type
1/8 Nitro GP 4WD Competition Truggy
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

Metal Shielded Bearing Kit Compatibility:

Quick Fit Summary:

  • Compatible Brand: Kyosho

  • Fit: Model-specific fitment for Kyosho Inferno ST-RR 1/8 Nitro GP 4WD Competition Truggy.

  • Compatible RC Model/OEM Numbers: 31353

  • Scale: 1/8

  • Power Source / Fuel Type: Nitro GP

  • Battery / Cell Count: Not applicable

  • Drive Type: 4WD

  • Vehicle Type: 1/8 Nitro GP 4WD Competition Truggy

  • Chassis: Kyosho Inferno ST-RR Truggy Chassis (31353)

  • Era: Modern Transition (2000-2009)

  • OEM / Models: 31353

  • RC Model Terrain: Off-Road: Dirt, Clay & Truggy Tracks

This Kit Details:

  • SKU: kyo137b

  • MPN: kyo137b

  • 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

  • Product Material: Carbon Chrome Steel Bearings

  • Product Color: Silver

OEM / Model Code / Alias Coverage:

  • Verified OEM / Model Codes: 31353

  • Model Family Coverage: Kyosho Inferno ST-RR

Bearing Size Details: Not currently verified.

Product Benefits:

  • Metal shielded bearings are selected for low-drag performance and smooth drivetrain feel on cleaner running surfaces.
  • Best for clean on-road, prepared track, display, or light-duty use where reduced rolling resistance is preferred.

Fitment Note:

  • This is a model-specific RCScrewZ kit for Kyosho Inferno ST-RR; confirm your RC model number matches 31353 before ordering.
  • Metal shielded bearings are not sealed against heavy dirt, mud, water, or debris.

Search-Friendly Notes:

  • Common buyer searches include Kyosho Inferno ST-RR, 31353, screw kit, metal shielded bearings, rubber shielded bearings, and RC rebuild parts.

Metal-Shielded Bearing Kit Details

Review the bearing-kit details below before ordering.

RCScrewZ Kit Part Number
kyo137b
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: Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353)
$53.67
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