Description
Nothing cheapens the overall presentation of a premium motorcycle faster than dull, corroded engine case screws. The standard original factory fasteners fitted to these twins are a prominent structural weak point—gathering white rust quickly and seizing solid inside the soft alloy hubs, turning routine fluid changes into a nightmare of drills and extraction tools. Sourced and turned right here in the UK from high-tensile grade stainless steel, this complete Hyosung engine bolt kit provides a permanent solution to those frustrating maintenance bugs. Swapping your rotted original screws for these toughened internal hex socket bolts delivers superior tensile strength, improves tool biting security on the workbench, and adds a lasting race-proven aesthetic under your panels during touring, road trips, or daily riding across your latest restoration project.
💎 LOWER CASING OVERHAUL ENGINE SCREW PACKAGE INVENTORY
| CLUTCH COVER FASTENERS | MAGNETO / STATOR COVER FASTENERS |
| OIL FILTER COVER FASTENERS | FRONT SPROCKET COVER FASTENERS |
📜 Confirmed Model Fitment
Hyosung Models: Fits the following models below only, covering both carburetor and electronic fuel injection variations.
❌ It will NOT fit GV125-S EFi Bobber models from 2018+ onwards
| GT125 Naked Comet & GT125R All models up to 2019 |
GT250 Naked Comet & GT250R All models up to 2019 |
| GV125 Aquila Cruiser Carburettor models up to 2017 |
GV250 Aquila Cruiser All models up to 2019 |
🔧 Installation & Expert Timing Tips
This upgrade is a direct drop-in swap needing no custom modifications. Most generic commercial repair facilities ignore these machines, but we provide the explicit workbench support you need:
- Anti-Seize Lubrication is Key: While premium stainless steel alloys resist atmospheric rust, we strongly suggest coating the entry paths with a small smear of anti-seize paste. This precaution prevents galling or cold-welding between different metals, making future filter checks simple.
- Follow Even Hand Tool Torque Settings: Always utilize a calibrated torque wrench on the workbench. Stainless steel fasteners require exact load constraints; over-tightening aggressively is a common blunder that will instantly strip out the soft cast aluminium openings in your engine block casing.
- Execute Quick Service Inspection Checks: The clean allen key drive sockets make regular inspections completely hassle-free. Quickly verify the tension parameters with your keys at standard fluid servicing intervals.
- 🔧 Need help tracing correct torque measurements before turning your tools? Join our community forum discussion straight here!





























![Oil Drain Plug [CNC Magnetic Sump Bolt] - Hyosung GV125S Injected EFi](https://i0.wp.com/hyoriders.club/wp-content/uploads/2020/04/xgv125sdraincnc.jpg?fit=362%2C362&ssl=1)

![Anodized Gear Shift Linkage Rod [Shifter Bar] :: Hyosung GV125 Carby & GV250](https://i0.wp.com/hyoriders.club/wp-content/uploads/2022/10/Gear-Shift-Linkage-Hyosung-GV125C-GV250.jpg?fit=362%2C362&ssl=1)
Simon –
An absolute must have, making life a lot easier to work on your engine.