Shinko Motorcycle Tires SR777 HD Rear Cruiser Tire 170/80B15 83H Black Wall Heavy-Duty with Improved Wet Traction

The Shinko SR777 HD 170/80B15 83H is a heavy-duty rear cruiser tire engineered to deliver stable handling, improved wet and dry traction, and a planted feel for V‑Twin and metric cruiser motorcycles.

This rear bias-ply tire from Shinko Motorcycle Tires balances comfort and confidence for everyday cruising and spirited rides. Its rubber compound and tread pattern were developed to enhance grip during acceleration, braking and cornering while the reinforced carcass and aramid belt increase load capacity and stability. Sizes like 170/80B15 fit many common cruiser applications; always confirm fitment with your owner’s manual or a tire professional. Data shown on this page is intended for riders in the United States and Canada and should be verified against vehicle placards and professional advice.

How does the SR777 HD improve traction on wet surfaces?

The SR777 HD features purposeful siping and circumferential grooves that evacuate water from the contact patch to reduce hydroplaning risk and maintain consistent bite. The tread layout keeps a larger portion of rubber on the road at angles common to cruiser cornering, helping preserve grip when the pavement is damp.

• Functional siping channels surface water away from the contact patch
• Circumferential grooves accelerate drainage in wet conditions
• Tread footprint optimized for cruiser lean angles to retain traction

Will this tire increase stability and load capacity for heavy bikes?

Yes — the H.D. (Heavy Duty) construction and aramid-belt reinforcement make the SR777 HD better suited for heavier loads and touring gear than a standard bias tire. The reinforced carcass resists deflection under weight, translating to a firmer, more planted ride at highway speeds and during braking.

• Reinforced carcass reduces sidewall flex under load
• Aramid belt adds strength without excessive weight
• Load rating 83 supports typical cruiser rear loads for the size

How does the SR777 HD affect ride comfort and handling?

Shinko tuned the rubber compound to strike a balance between cushioning and grip, so you get a comfortable ride without sacrificing responsiveness. The bias construction combined with the Heavy Duty reinforcement promotes predictable steering feedback and confidence during throttle transitions and corner entries.

• Compound formulated for a mix of compliance and traction
• Bias-ply feel with improved carcass stability for consistent handling
• Designed to inspire confidence under acceleration and braking

Is the 170/80B15 83H size compatible with my cruiser?

The 170/80B15 is a common rear fitment for many V‑Twin and metric cruiser models, but compatibility depends on rim width, clearance and your bike’s recommended sizes. Always verify the vehicle placard, owner’s manual, or consult a tire installer to confirm safe fitment and correct inflation for your specific motorcycle and riding conditions.

• Fits many 15-inch cruiser rear rims—confirm rim width compatibility
• Check vehicle placard and owner’s manual for approved sizing
• Professional installation ensures proper seating, balance and alignment

Who is this for: The Shinko SR777 HD 170/80B15 83H is aimed at riders of V‑Twin and metric cruisers who want a heavy‑duty rear tire that improves stability while offering dependable wet and dry traction. It’s a practical choice for daily riders and weekend tourers who carry luggage or passenger weight and want a predictable, confidence‑inspiring rear tire without moving to a radial-only design. For exact fitment and load/speed specifications, verify with a tire professional or your motorcycle’s documentation before purchase.