Proline Positron M4 S-Soft Wheels & Tyres w/ Foam Inserts 2.2"-3.0" PR10137-03

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SKU: PRO1013703
Regular price $41.99

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This is a pair of Positron SC Tyres. The future of Short Course Tyre Performance is here with Pro-Line's all-new SC Positron Tyre! Designed from the ground up with a futuristic directional tread design, the Positron delivers true next-generation performance with improved grip and corner speed on indoor clay tracks. The tread design pays homage to the Electron and ION tyre before it with the 2 center pins boxed in by connected bars for a familiar Pro-Line signature look. From there the connected bars shoot off at angles that have been specifically designed to provide maximum Forward Bite combined with unmatched corner speed all while lasting longer than the competition. The Positron is directional, which adds another tuning option for the racers always looking for that extra edge since it will perform differently depending on which direction it is run. Get the newest and best race tyre for your SC Truck - the Pro-Line Positron!

Now available in S-compound, Pro-Line’s new Long-Wear compound! The S-compound is Pro-Line’s latest and greatest compound that has been tearing up the track and winning races at the highest level. All S compounds are a substantial leap forward in terms of grip in dry and slick conditions. Another massive improvement with the S compounds is that they stay stable throughout long main events and do not fade or get soft near the end of the race.


  • All-new Ground up Design for Maximum Performance
  • Futuristic Directional Tread Design
  • Angled Connected Bars for Maximum Forward Bite & Unmatched Corner Speed
  • Improved Tyre Wear Over Previous Race Tyres
  • Tune Performance by Choosing Tyre Direction
  • Outlast the Competition
  • Made in the USA, since 1982

What's included

  • Positron SC Tyres (2 pcs)
  • Closed Cell Foam Inserts (2 pcs)


  • Height: 4.16" (106mm)
  • Width: 1.81" (46mm)