The Shinko 504 Series front motorcycle tire is designed for riders who demand dependable traction, braking, stability, and control in hard terrain. This 80/100-21 tire uses a bias construction and tube-type fitment for compatible off-road motorcycles, helping provide predictable handling across challenging surfaces.
Its high-carbon-compound tread is engineered to maximize tread life while minimizing knob tear and wear. Reinforced tread knobs resist tearing and chunking, delivering consistent grip during acceleration, braking, cornering, and technical trail riding. The 51M speed and load rating is suited to the intended motorcycle application when installed according to the vehicle manufacturer’s recommendations.
This Shinko 504 Series tire is an NHS, or Not for Highway Service, product intended for off-road use rather than public-road operation. Part number 87-4355 identifies this front tire configuration. For riders seeking a durable off-road front tire with balanced traction and control, the Shinko 504 Series provides a practical choice for demanding terrain. The related 504/505 Mobber versions, part numbers 87-4790 and 87-4791, are DOT approved; this part is not identified as DOT approved.
Features:
- Size: 80/100-21 front motorcycle tire
- Model: 504 Series
- Brand: Shinko
- Manufacturer part number: 87-4355
- Vendor part number: 87-4355
- Construction: Bias
- Tube type: Designed for use with a compatible inner tube
- Load and speed rating: 51M
- Application: Front tire for compatible off-road motorcycles
- Tread compound: High-carbon compound helps maximize tread wear
- Tread design: Reinforced knobs resist tearing and chunking
- Performance: Provides traction, braking, stability, and control in hard terrain
- Service designation: NHS, Not for Highway Service