JConcepts SCT Bar Codes tires
JConcepts popular Bar Code SC tires are now also available in blue “soft” compound. The tire is designed to excel both in new and used condition on hard surfaces that have taken rubber with either dry or wet grooved conditions. Worn Bar Codes excel on indoor or outdoor clay tracks where a minimal dust groove has formed. Included with the tires are light-weight and durable Closed Cell profiled inserts.
Source: JConcepts [jconcepts.net]