The CST C979D 27 × 1 3/8 is a versatile and reliable tire designed for classic city, trekking, and hybrid bicycles featuring 27-inch wheels. It offers a balanced combination of comfort, durability, and efficient rolling performance, making it well-suited for daily commuting, leisure rides, and mixed-surface cycling.

Key Features:

• Size: 27 × 1 3/8 — a traditional 27-inch size commonly found on vintage, city, and touring bikes
• ETRTO: 35-590 — standard bead seat diameter and width for precise fitment
• Tire Type: Clincher (requires an inner tube)
• Tread Pattern: Semi-slick with light center ribs for reduced rolling resistance on pavement and moderate shoulder tread for grip on loose surfaces
• Performance: Smooth and stable ride with good traction and predictable handling in everyday conditions
• Use Case: Ideal for urban streets, paved paths, light gravel, and general recreational cycling