Shinko 421 Series Scooter Tire
Shinko 421 Series Scooter Tire
Shinko 421 Series Scooter Tire
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Shinko 421 Series Scooter Tire
Shinko 421 Series Scooter Tire
Shinko 421 Series Scooter Tire

Shinko 421 Series Scooter Tire

This mini bike tire features a tough nylon carcass with raised dimpled knobs, engineered to provide reliable traction and control across a variety of terrains. The durable construction ensures long-lasting performance, making it suitable for dirt, gravel, and mixed off-road surfaces, while maintaining stability during sharp turns, acceleration, and braking. Designed specifically for mini bikes, this tire balances grip, handling, and ride comfort, allowing riders to confidently tackle trails, tracks, and recreational areas. Its versatile tread pattern adapts to different surfaces while resisting wear, ensuring consistent performance over time. Ideal for both casual riders and mini bike enthusiasts, this tire delivers dependable traction, durability, and performance in one reliable package, making it a practical choice for a wide range of mini bike applications.
SHINKOSKU: 87-4420
$43.31 $44.95
Less 4%
Size: 3.50-8
Color: Black
Price:
$43.31 $44.95
Fast Delivery

Fast Delivery

Shipped in 24 Hours

Family-Owned

Family-Owned

Real people

Authorized Dealer

Authorized Dealer

100% genuine gear

Hassle Free

Hassle Free

30 Days Returns

Safety Certifications DOT (FMVSS 218) + ECE – Dual Certified

  • Shipping: Free standard shipping on orders $79+ (exclusions may apply to oversized items, tires, Alaska/Hawaii orders, and other select products). Most orders ship within 24 hours on business days, with standard delivery typically taking 3–5 business days.
  • Returns: Returns are accepted within 30 days of delivery. Items must be new, unused, clean, undamaged, and returned with their original packaging and included materials.
  • Non-Returnable Items: Opened chemicals/aerosols, undergarments, tires and tire/wheel kits, opened electronics, filled fuel/liquid containers, Camso track systems, and closeout items are not eligible for return.
  • Return Shipping: Customers are responsible for return shipping costs unless otherwise stated. A prepaid return label may be available for $7.99 on eligible returns.
  • Full Policies: For complete details, exclusions, and instructions, please see our Shipping Policy and Return Policy
★ ★ ★ ★ ★

50,000+ RIDERS CAN'T BE WRONG

★ ★ ★ ★ ★
"“Ordered the Fly Racing F-16 combo. Jersey and pants matched perfectly straight out of the box, shipped in 2 days. Wore them on the track Saturday. This is the easiest gear purchase I’ve ever made.”"
G
Gregory Cliff Verified Buyer
Motocross Rider · Arizona
★ ★ ★ ★ ★
"“I was nervous about sizing — gear is expensive and I didn’t want to be stuck with the wrong fit. The size guide was actually accurate. Returned nothing. Best online gear shop I’ve used in 8 years of riding.”"
S
Sara M. Verified Buyer
Trail Rider · Oregon
★ ★ ★ ★ ★
"“Ordered my snowmobile kit — FXR jacket, bibs, and a 509 helmet. All matched perfectly, all arrived in 3 days before the season started. The family-owned vibe is real. Got a handwritten note in the box. That doesn’t happen with Amazon.”"
T
Tyler B. Verified Buyer
Snowmobile Rider · Montana
★ ★ ★ ★ ★
"Ordered the Fly Racing F-16 combo. Jersey and pants matched perfectly straight out of the box, shipped in 2 days. Wore them on the track Saturday. This is the easiest gear purchase I've ever made."
G
Gregory Cliff Verified Buyer
Motocross Rider · Arizona
★ ★ ★ ★ ★
"I was nervous about sizing — gear is expensive and I didn't want to be stuck with the wrong fit. The size guide was actually accurate. Returned nothing. Best online gear shop I've used in 8 years of riding."
S
Sara M. Verified Buyer
Trail Rider · Oregon
★ ★ ★ ★ ★
"Ordered my snowmobile kit — FXR jacket, bibs, and a 509 helmet. All matched perfectly, all arrived in 3 days before the season started. The family-owned vibe is real. Got a handwritten note in the box. That doesn't happen with Amazon."
T
Tyler B. Verified Buyer
Snowmobile Rider · Montana
Protection you can trust

Protection you can trust

Advanced safety design built to keep you secure on every ride.

Engineered for every terrain

Engineered for every terrain

Built to perform from rugged trails to open roads.

Ready for any condition

Ready for any condition

Comfort and durability that adapts to changing weather.

Complete your fly racing look

Complete Your Fly Racing LookMatch your helmet with coordinated Fly Racing gear.

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