Mickey Thompson ET Street R Tire (3550) - P225/50-15
The Mickey Thompson ET Street R is the ultimate street-legal drag tire, delivering race-winning traction with the ability to drive to and from the track. Built with proven R2 race compound technology, this D.O.T.-approved tire provides exceptional bite off the line while maintaining street usability.
Designed with a minimal tread void for maximum contact patch, the ET Street R offers incredible traction under hard launches. Its tubeless construction ensures a reliable, leak-free seal without the added hassle of inner tubes. Whether you're competing at the strip or cruising the streets, this tire gives you the confidence of race-level performance in a street-legal package.
Features
- D.O.T. approved for street use
- R2 special compound for maximum traction
- Minimal tread void for increased contact patch
- Tubeless construction for leak-free performance
- Available in popular drag racing sizes
- Engineered for powerful launches and consistent performance
Important Notes:
- Never use rim screws on radial drag tires.
- Do NOT use on a dyno.
- All bias drag drive tires must be matched within 1/2 inch rollout.
- Mickey Thompson recommends bubble balancing on all drag tires. Drag tires may require 8–10 ounces of weight, which is normal.
Specifications
- Tire Size: P225/50-15
- Equivalent Size: 24 x 9.5-15
- Measured Rim Width: 7.0"
- Approved Rim Width Range: 6.0" - 8.0"
- Overall Diameter: 24.1"
- Section Width: 9.1"
- Tread Width: 7.8"
- Circumference: 75.7"
- Compound: R2
- Approximate Weight: 21 lbs
- MATL #: 255597
- Old Part #: 90000024650
- Part #: 3550
- Product Code: 315091004
Fitment
- Universal Fitment (15" wheel applications)
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

