Vintage Schwinn Bike Tire, S-6, 26 x1-3/8x 1-1/4, Kenda K23, 597 ISO,

• Kenda Schwinn S-6 Tire | 26 x 1-3/8 | ISO 597 | Black

  The Kenda Schwinn S-6 tire is a classic replacement tire designed specifically for older Schwinn bicycles using the unique ISO 597 (S-6) rim size. This is NOT the same as standard 26 x 1-3/8 (ISO 590), so checking your existing tire sidewall before purchase is critical.

  Featuring a simple straight-line tread pattern, this tire delivers smooth rolling performance with reliable traction for recreational riding and restoration builds.

  IMPORTANT FITMENT NOTE — READ BEFORE PURCHASE

  This tire ONLY fits Schwinn S-6 rims (ISO 597) used on many vintage Schwinn lightweight and middleweight bicycles.

  Even though labeled 26 x 1-3/8, there are multiple ISO versions:

• ISO 597 = This tire (Schwinn S-6 ONLY)

• ISO 590 = Different tire, NOT compatible

Brand new tire

OEM style Schwinn replacement

Includes tire only

Brand: Kenda

Model: Schwinn S-6 Street Tire

Size: 26 x 1-3/8 (S5/6)

ISO Diameter: 597 (Schwinn S-6)

ISO Width: 35 mm

Tread: Straight groove / street

Bead: Wire

Tire Type: Clincher

Max PSI: 55–65 PSI

TPI: 22

Intended Use: Road / Recreational / Vintage Schwinn

Color: Black

Weight: Approx. 528–656 g

Check your current tire sidewall for 597 before ordering.

Correct replacement for Schwinn S-6 (ISO 597) rims

Classic straight-line tread for smooth, stable ride

Ideal for vintage Schwinn restoration and recreational use

Durable wire bead construction

Longstanding OEM-style Schwinn fitment