Kenda Street K40
Street K40
Kenda

Kenda Street K40

$19.95
In Stock

The Kenda Street K40 is a durable 26" x 1-3/8 clincher designed for everyday street and commuter riding. Wire-bead construction, 55 PSI rating and a smooth tread deliver reliable rolling and puncture-resistant performance for city bikes.

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Available Options

Option Price Availability
Kenda, Road K40, Tire, 26''x1-3/8, Wire, Clincher, Black $19.95 In Stock
Kenda, Road K40, Tire, 26''x1-3/8, Wire, Clincher, Tanwall $19.95 In Stock

Product Details

Overview & Technology

Kenda Street K40 (Part #01262004001, SKU 011153) is a purpose-built street tire for 26" / ISO 590 wheels. It uses a traditional wire bead clincher design and a durable rubber compound tuned for low rolling resistance on pavement. The tread is a shallow, smooth center with light siping toward the shoulders to balance grip and speed. At a rated 55 PSI and a labeled width of 1-3/8 (range 1–1½), the K40 delivers predictable handling and long wear for everyday urban use.

Key Features

Construction: Wire bead clincher for easy mounting and compatibility with classic rims. The tire uses a robust street compound that trades minimal weight for longevity and puncture resistance. Design benefits:• Smooth center tread for efficient rolling on tarmac • Shallow shoulder siping for cornering security in wet city conditions • Tanwall variant available for a classic aesthetic on vintage or cruiser-style bikes

Fit & Compatibility

The K40 is labeled 26" x 1-3/8 and uses the ISO 590 diameter—commonly found on older roadsters, vintage road bikes, some cruisers and commuter frames. It fits rims that accept 26"/590 tires; check your rim's recommended inner width for safe mounting (typical compatible inner widths are ~13–19mm). Important notes: This is a clincher tire requiring an inner tube; it is not tubeless-compatible and is not approved for e-bike use. Confirm axle clearance and brake caliper clearance before purchase if your frameset is tight.

Who It's For

The Kenda Street K40 is best for commuters, city riders, and anyone restoring or maintaining a vintage 26" road bike who wants a reliable, no-fuss tire. Riders who value durability, low maintenance and a traditional clincher setup will appreciate the K40's straightforward performance. If you want high-performance race rubber or tubeless capability, look to more modern road or gravel-specific tires — but for dependable day-to-day pavement riding, the K40 is a cost-effective, long-lasting choice.

Key Features

  • ✓ 26" x 1-3/8 (ISO 590) sizing for classic road and commuter bikes
  • ✓ Wire-bead clincher construction for easy tire mounting and reliable seating
  • ✓ Smooth center tread for efficient rolling on urban pavement
  • ✓ Shallow shoulder siping adds wet-weather cornering confidence
  • ✓ Rated up to 55 PSI for a firm, responsive ride feel
  • ✓ Available in classic black or tanwall for vintage styling
  • ✓ Lightweight everyday tire — shipping weight about 1.1 lb

Specifications

Primary Color Black
Bead Wire
Tire PSI 55
Tire Type Clincher
Tire Width 1-3/8
Tire Width Range 1 - 1-1/2
Labeled Size 26''x1-3/8
Tire Diameter/ISO 26''/590
e-Bike approved No

Product Identifiers

Vendor Item # 01262004001
UPC 047853636284

Frequently Asked Questions

Is the Kenda Street K40 tubeless compatible?

No. The K40 is a wire-bead clincher designed for use with inner tubes. It is not tubeless-ready and should not be used with tubeless setups.

Can I use this tire on an e-bike?

No. The manufacturer specifies that this tire is not approved for e-bike use. For electric-assist bikes you should choose tires specifically rated for e-bike speeds and loads.

What inner tube size do I need for 26 x 1-3/8?

Use a 26 x 1-1/8 to 26 x 1-3/8 inner tube (ISO 590) — check the tube's listed compatibility range. Standard 26" presta or schrader valve tubes that match the rim's valve hole are appropriate.

Will the K40 fit my 26" vintage road bike?

Most likely yes, if your bike accepts 26"/ISO 590 tires. Verify rim diameter (590) and frame clearance, then confirm the 1-3/8 width fits your brake calipers and fork/frame spacing.

How much air pressure should I run?

The K40 is rated to 55 PSI. For urban commuting, 45–55 PSI is a good starting point depending on rider weight and comfort — lower pressures improve comfort but increase pinch-flat risk.

What's the difference between the black and tanwall versions?

The two variants use identical construction and performance; the tanwall option simply adds a classic brown sidewall aesthetic for riders restoring vintage bikes or preferring retro styling.

Buying Guide

When replacing or upgrading street tires for classic 26" bikes, prioritize correct ISO diameter (590), bead type and tire width. Clincher wire-bead tires like the Kenda Street K40 are straightforward to mount and maintain, and they pair with standard inner tubes. Decide between modern performance (lighter, tubeless-ready rubber) and traditional durability (wire bead, long-wearing compound). For daily commuting and vintage restorations, choose a robust compound with a comfortable PSI range and check whether a tanwall option suits your bike's aesthetics.

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