New JConcepts Rock Block - 1.9" (4.75" OD) (pair)

New JConcepts Rock Block - 1.9" (4.75" OD) (pair) Features: Bold Rock Block asymmetrical design Class 2 readiness, 4.75” O.D. Left (L) and Right (R) tire marked on the sidewall Fits industry standard 1.9” diameter wheels Multi-faceted 3 tread lot center structure Lug recessing, zig and zag tread combinations Retro JConcepts sidewall logo with inner hatch pattern Hefty sidewall lugging with connected wear bar detail for continuity Continuous thickness carcass for clean profile Includes open cell insert Available in JConcepts sticky green compound