Automotive replacement part designed to restore rear drive performance with an OEM-style fit and a durable finish. Confident rideability for pit bike and trail riders who want a reliable, straightforward swap. Is the Fydun Rear Chain Sprocket the right spare for your 428-chain bike?
⚡ At a Glance
- • Durability: High-strength metal construction with corrosion-resistant coating and burr-free machining
- • Best for: Owners of PIT PRO, pit bike and dirt bikes using a 428 chain seeking direct replacement parts
- • Not ideal for: Bikes that use non-428 chain sizes or custom drivetrain setups
Manufactured to match original form, fit and function for many pit and trail bikes, the 41T rear sprocket fits 428 chain standards. Coated metal construction and smooth machining aim to improve longevity while keeping weight low.
Reliable Fit and Alignment - with precision OEM-style engineering
Accurate machining reproduces original bolt pattern and tooth profile to meet factory specifications, enabling direct replacement without modification. Design emphasises form, fit and function to align with 428 chain spacing.
Straightforward bolt-on replacement for compatible bikes, reducing downtime in the workshop or at the track. Precise fit helps maintain chain alignment and reduces the need for additional adjustments.
Longer Service Life - thanks to corrosion-resistant metal and coating
High-quality metal material receives a coating treatment and burr-free finishing to limit surface corrosion and wear. Manufacturing follows quality control standards to improve strength and reduce early failure.
Less frequent replacement needed when used under normal riding conditions, so riders can expect a more reliable rear drive over time. Smooth edges also help prevent premature chain wear.
Quick Replacement and Low Weight - with compact footprint and simple fitment
Compact design eliminates unnecessary material while retaining structural strength, keeping mass down without altering mounting points. Precise tolerances allow removal of the old cog and installation of the new one with basic tools.
Minimal workshop time required for changeovers, suitable for field repairs or at-home maintenance. Reduced weight helps preserve handling characteristics on lightweight pit and trail bikes.
✨ The 4 Key Reasons for Fydun Rear Chain Sprocket
- Wide Compatibility - Fits standard 428 chains and common PIT PRO pit bike models, right away
- Corrosion-resistant Coating - Keeps surface intact and usable through wet, muddy conditions
- Precision Machining - Accurate tooth profile lowers chain slip and reduces drivetrain noise under load
- Easy Bolt-on Replacement - Simple removal and installation with basic tools, suitable for roadside repairs
📋 Technical Details at a Glance
- Category: Rear chain sprocket
- Brand: Fydun
- Part type: Replacement rear sprocket
- Teeth: 41T
- Chain compatibility: 428 chain
❓ Frequently Asked Questions
Q: Will this fit my 428 chain setup?
A: Yes, the sprocket is specified as a 41T rear sprocket for 428 chain, and is intended to fit PIT PRO, pit bike, trail bike and dirt bike models that use that chain size.
Q: Do I need special tools to install the sprocket?
A: No specialised tools are normally required, installation is described as straightforward, involving removal of the original sprocket and bolting the replacement in place.
Q: Is the sprocket durable for off-road conditions?
A: High-quality metal construction with a corrosion-resistant coating and smooth, burr-free finish is designed for durability in demanding riding conditions, and user feedback highlights robust build quality.
🏆 Our Verdict
Ideal for pit bike and trail riders who need a direct 41T replacement for a 428 chain, particularly owners of PIT PRO and similar machines. Durable metal construction, coated finish and precise machining combine to deliver OEM-style fit and longer service life. While some buyers may compare alternatives, solid build and ease of installation make this a practical long-term spare for routine maintenance and repairs.
