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Product details
Sun ChaserPart
A 20 x 4 all-terrain fat tyre for compatible eBikes needing a practical mixed-surface replacement.
Fitment can depend on model year, connector, brake caliper, tyre size, rack mounts or controller setup. If you are unsure, contact Sun Chaser before checkout and we will help check the right part.
Will this fit any 20 inch wheel?
No. It is for fat-bike rims and compatible frame clearance, not standard narrow 20 inch wheels.
Do I need a new tube as well?
If your tube is old, damaged or the wrong size range, replace it at the same time.
Can Sun Chaser fit it?
Yes, tyre fitting is available by appointment.
Confirm before publishing
Draft fitment: fat-tyre eBikes
20x4 fat-tyre bikes - confirm exact tyre size
26x4 fat-tyre bikes - where the selected option matches
Sun Chaser support
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Ask about fit, carrying needs, compliance, accessories and real-world use before choosing.
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