Name: Hyosung Starter Sprag Clutch Driven Gear Bearing - GT125 GV125C GT125R Carby
SKU: 125FlywheelSpragBearing
Availability: InStock

Hyosung Starter Sprag Clutch Driven Gear Bearing – GT125 GV125C GT125R Carby

Estimated delivery dates: Mar 23, 2026 - Mar 24, 2026

£11.99

💎 STARTER DRIVEN GEAR BEARING | RESTORE RELIABLE STARTING

Instant Ignition Every Time: Fix sluggish or jammed starter systems. This critical internal bearing allows the starter motor to smoothly engage the engine’s flywheel. Essential for any rebuild or if you’re chasing down intermittent starting issues.

✅ Function: Smooth engagement between starter motor & flywheel.
🛠️ Problem Solver: Fixes metal-on-metal sounds & starting failures.
⚙️ Build Quality: High-grade materials for long service life.
📦 What’s Included: 1x Flywheel Sprocket Bearing.

💡 MAINTENANCE ALERT: This is a key part of your starting system. If the old one shows rust or play, replace it immediately during any left-side engine cover work to prevent future failure!

Description

The V-Twin engine’s starter system relies on precision components. The driven gear bearing sits behind the flywheel and is often overlooked until it seizes or develops play, leading to hard starting or complete failure. For life on the road, proactive maintenance is key. If you’re already accessing the left-hand engine cover for sprag clutch inspection or rebuilds, fitting a fresh bearing is the professional way to ensure long-term reliability.

💎 Ensure Every Start Is a Success

A quality pattern part that ensures a smooth, quiet interface for your starter system, preventing costly damage down the line.

Smooth Operation Reduces friction during startup.	Problem Solver Fixes sluggish starter feel.
Internal Component Protected behind the cover.	Long Lasting Built for V-Twin demands.

📜 Confirmed Fitment Guide

✅ FITS: GT125, GT125R (2003-2019 Carb models only).
✅ CRUISERS: GV125C / Aquila 125 (1999-2016 Carb models only).
❌ WILL NOT FIT: Any 250cc, 300cc, or 650cc models, or the newer GV125-S EFI (Liquid Cooled).

💡 RECOMMENDED PAIRING:
We highly recommend replacing your [Left Engine Cover Gasket] at the same time, as the original is single-use and needs replacement when opening the case.

🔧 Install Tips

Engine Cover Removal: You must remove the left engine cover to access this bearing.
Tools: A circlip plier and potentially a light application of heat (or a bearing puller) will help with the old bearing removal.
Fitment: Press the new bearing in flat and flush with the casing edge.

📧 FITMENT QUESTIONS? Email us with your bike details. For technical help or community opinions on engine rebuilds, visit the HyoRiders Forums.