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Inverted Front USD Fork Oil Seals x2 – Various Hyosung Models (2005-2017)

Estimated delivery dates: Aug 31, 2026 - Sep 1, 2026

£9.99

⚙️ USD FORK SEALS REFRESH // STOP THE WEEPING

Are your front forks leaking oil all over your brakes? This high-quality pair of heavy-duty seals stops oil weeping, keeps your suspension firm, and ensures your front tyre stays clean and safe from dangerous fluid spills.

  • FITMENT NOTES // Only fits upside-down inverted forks. (USD FORKS)
  • ❌ DOES NOT FIT // GV cruisers, GD Exiv, or standard upright silver GT125 Naked forks (Skinny RWU Forks)
  • In Stock // Suspension restoration is key to safe riding, these seals are now in stock.
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Description

If you spot oily rings or wet patches pooling on your lower inner stanchions, your seals are done for. This kit provides two fresh internal oil seals to lock the hydraulic fluid inside your legs where it belongs. Leaving it to leak means oil will travel down the bike straight onto your front brake pads and tyre, destroying your stopping power and scoring an instant MOT failure. Swap them out early to keep your front end handling solidly.

💎 Component Properties

Inverted Fork Setup
Includes two matching fluid-retention oil seals. This pack refreshes both left and right legs simultaneously.

❌ Dust wipers (Dust Covers) are not included.

OEM References
51255HG5800

📜 Confirmed Fitment Guide

Hyosung Models: Fits the following models below only.

  • GT125R / GT125RC: 2005 to 2017
  • GT250 Naked: 2004 to 2020
  • GT250R: 2005 to 2020
  • GT650: 2005 to 2020
  • GT650R: 2005 to 2015
  • GT650S: 2005 to 2017
  • GV650: 2005 to 2017
❌ EXCLUSIONS:

  • GT125 Naked:   Will not fit.   This specific naked model uses skinny silver upright conventional forks instead of the chunkier inverted setup.
  • GV125 & GV250 Cruisers: Will not fit any year or sub-variant whatsoever.
  • GD250N & GD250R Exiv: Completely incompatible with these specific single-cylinder suspension shapes.
💡 TIP: Grab a bottle of premium synthetic fluid to refill your stanchions properly during this strip-down. 

🔧 Install Tips

  • Stanchion inspection: Run your fingernail up and down the working chrome surface before slipping the new rubber on. Sharp stone chips or pitting will slice your brand-new items instantly.
  • Lip protection: Wrap a layer of thin electrical tape or slick packing film over the top edge of the stanchion and the oil retention ridge. Slide the piece down gently so the metal lip cannot nick the delicate internal spring line.
  • Seating depth: Avoid using metal screwdrivers to pound the component into the outer slider casing. Use a dedicated slider driver tool  that matches the outer diameter exactly to seat it squarely.
📧 NEED A HAND IN THE WORKSHOP? If you want to confirm your specific outer stanchion diameter or need step-by-step guidance on slider removal, email us or head straight to the forums.

Additional information

Weight 0.3 kg
Dimensions 5 × 5 × 2 cm

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