Bridgestone YK

Name: Bridgestone YK Kart Tire
Brand: Bridgestone

Mediumsprint

Updated 2026-03-01

Performance Specs

Grip

Durability

Wet

80-110°F

Temp Range

Heat Cycles

F: 11-13 psiR: 9-11 psi

Pressure

Available Sizes

Position	Size	Rim Diameter	Tread Width
front	10x4.50-5	5"	4.5"
rear	11x7.10-5	5"	7.1"

Class Compatibility

OK OKJ KZ

Sanctioning bodies: CIK-FIA

Overview

The Bridgestone YK is a premium sprint tire used in top-level CIK-FIA championships. It offers a combination of high grip and predictable behavior that is favored by factory teams.

Ideal For

Top-level international sprint competition and CIK-FIA sanctioned events.

Pros

Excellent grip consistency
Predictable behavior at the limit
Used by top factory teams worldwide

Cons

Premium pricing
Limited availability outside Europe
Requires precise setup to maximize

Where to Buy

Buy from Comet Kart Sales

Frequently Asked Questions

Is the Bridgestone YK legal for OK?

Yes, the Bridgestone YK is approved for use in the following classes: OK, OKJ, KZ.

What pressure should I run the Bridgestone YK at?

Recommended starting pressures for the Bridgestone YK are 11-13 psi (front) and 9-11 psi (rear). Adjust based on ambient temperature and track conditions.

How many heat cycles does the Bridgestone YK last?

The Bridgestone YK typically delivers optimal performance for 3 heat cycles. Performance will gradually degrade after this point.

What temperature range is best for the Bridgestone YK?

The Bridgestone YK performs best when tire surface temperature is between 80°F and 110°F.