The Shinko Tire 421 Series (Part Number SR421 3.50-10) is designed to deliver reliable traction and durability for mini bike enthusiasts. Constructed with a tough nylon carcass, this tire features a dimpled knob pattern that ensures superior grip across a variety of terrains, making it ideal for off-road riding and mini bike applications. Its open tread pattern promotes effective mud clearance, preventing the build-up of debris that can hinder performance in muddy or loose conditions. The tire is DOT approved, ensuring compliance with safety standards, although it is not intended for prolonged highway use, focusing instead on off-road and recreational riding scenarios.

Features:

• Tough nylon carcass for durability and strength

• Open tread pattern for effective mud and dirt clearing

• DOT approved for safety compliance

• Designed for off-road and mini bike use, not for extended highway riding

Please verify your bike model and year before purchasing. If you have questions about fitment, contact us at info@elektrischesracing.com or use the chat below — we’re riders, and we’ll help you get the right part.

Most kits are plug-and-play. Installation guides are included in the box and available on our YouTube channel. For complex installations, we recommend watching our installation videos before starting.

Will this fit my bike?
Check the product title and description for compatible models. Contact us if unsure.

How long does shipping take?
Most orders ship within 1-3 business days from Laguna Beach, CA. Free shipping on orders over $200 (Lower 48).

Do you offer financing?
Yes! Shop Pay Installments and Affirm are available at checkout.

What’s your return policy?
We accept returns within 14 days on unused items in original packaging.