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Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089); exact bearing sizes and quantities vary by RC model.

RCScrewZ Metal Shielded Bearing Kit kyo090b for Kyosho Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089) | RCX

RCScrewZ

SKU: kyo090b

Regular price
$69.88
Sale price
$69.88
Regular price
$79.95
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Available Quantity: 100

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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 Concept 30 DX/SE Helicopter #4089 — 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: Kyosho
  • RC Model: Kyosho Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089)
  • Scale: 30-size
  • Power Source / Fuel Type: Nitro & Glow Fuel
  • Chassis: Kyosho Concept 30 DX/SE Helicopter (4089)
  • Era: Early Classics (1980-1989)
  • OEM / Models: 4089
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 Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089)
  • Compatible RC Model Numbers: 4089
  • Scale: 30-size
  • Power Source / Fuel Type: Nitro & Glow Fuel
  • Vehicle Type: Class 30 Nitro RC Helicopter
  • Chassis: Kyosho Concept 30 DX/SE Helicopter (4089)
  • Era: Early Classics (1980-1989)
  • RC Model Terrain: Aerial Use

This Kit Details

  • SKU: kyo090b
  • MPN: kyo090b
  • Product: Performance RC Bearing Rebuild 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: 3x6x2.5mm Bearings (9) · 3x6x2.5mm Thrust Bearings (2) · 5x10x4mm Bearings (3) · 5x13x4mm Bearings (6) · 5x16x5mm Bearings (2) · 6x10x3mm Bearings (3) · 6x12x4mm Bearings (3) · 8x14x4mm Bearings (3) · 8x16x5mm Bearings (2) · 10x15x4mm Bearings (3) · 12x21x5mm Bearings (2)
  • 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 Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089)
Compatible RC Brand
Kyosho
RC Vehicle OEM / Model Number(s)
4089
RCScrewZ Kit Part Number
kyo090b

Vehicle Compatibility Details

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

RC Vehicle OEM / Model Number(s)
4089
RC Chassis Compatibility
Kyosho Concept 30 DX/SE Helicopter (4089)
Compatible Vehicle Type
Class 30 Nitro RC Helicopter
Terrain Compatibility
Aerial
Compatible Scale
30-size
Compatible Fuel Type
Nitro & Glow Fuel

What Is Included

Included bearing sizes for this Metal-Shielded Bearing Kit:

    • 3x6x2.5mm Bearings (9)

    • 3x6x2.5mm Thrust Bearings (2)

    • 5x10x4mm Bearings (3)

    • 5x13x4mm Bearings (6)

    • 5x16x5mm Bearings (2)

    • 6x10x3mm Bearings (3)

    • 6x12x4mm Bearings (3)

    • 8x14x4mm Bearings (3)

    • 8x16x5mm Bearings (2)

    • 10x15x4mm Bearings (3)

    • 12x21x5mm Bearings (2)

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 Concept 30 DX/SE Class 30 Nitro RC Helicopter, OEM/model code 4089.

  • Compatible RC Model/OEM Numbers: 4089

  • Scale: Class 30

  • Power Source / Fuel Type: Nitro & Glow Fuel

  • Battery / Cell Count: Not applicable - nitro powered.

  • Drive Type: Rotor-driven helicopter

  • Vehicle Type: Class 30 Nitro RC Helicopter

  • Chassis: Kyosho Concept 30 DX/SE Helicopter (4089)

  • Era: Early Classics (1980-1989)

  • OEM / Models: 4089

  • RC Model Terrain: Aerial Use

This Kit Details:

  • SKU: kyo090b

  • MPN: kyo090b

  • Kit Type: Metal Shielded Bearing Kit

  • Bearing Type: Metal-Shielded Bearings (Low-Drag)

  • Sealed Bearings: No

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

  • Product Material: Carbon Chrome Steel Bearings

  • Product Color: Silver

Bearing Size Details:

  • 3x6x2.5mm Bearings (9)
  • 3x6x2.5mm Thrust Bearings (2)
  • 5x10x4mm Bearings (3)
  • 5x13x4mm Bearings (6)
  • 5x16x5mm Bearings (2)
  • 6x10x3mm Bearings (3)
  • 6x12x4mm Bearings (3)
  • 8x14x4mm Bearings (3)
  • 8x16x5mm Bearings (2)
  • 10x15x4mm Bearings (3)
  • 12x21x5mm Bearings (2)

OEM / Model Code / Alias Coverage:

  • Verified OEM / Model Codes: 4089

  • Model Series: Concept, Concept 30, Concept 30 DX/SE

Model Family Coverage:

  • Designed for the Kyosho Concept 30 DX/SE family shown in this listing. Do not assume fitment with other Kyosho helicopter variants unless your OEM/model code matches.

Product Benefits:

  • Metal shielded bearings are a low-drag choice for cleaner running, display builds, and smooth drivetrain feel.

  • Best for buyers who prefer reduced rolling resistance over maximum contamination protection.

  • Installation tip: seat bearings fully and avoid over-tightening surrounding hardware.

Fitment Note:

  • Confirm your Kyosho model and OEM/model code before ordering. This kit is intended for Kyosho Concept 30 DX/SE fitment with OEM/model code(s) 4089.

Search-Friendly Notes:

  • Useful for Kyosho helicopter owners searching for Concept 30 DX/SE stainless screws, metal shielded bearings, and model-specific RC maintenance parts.

Metal-Shielded Bearing Kit Details

Review the bearing-kit details below before ordering.

RCScrewZ Kit Part Number
kyo090b
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 Concept 30 DX/SE Class 30 Nitro RC Helicopter (4089)
$69.88

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