Maxxis 3c triple compound mountain technology uses a harder longer lasting base layer and two progressively softer top layers in order to optimise traction and stability 3c maxx terra compound maxx terra is an intermediate compound configuration used in select mountain bike tyres it is softer and offers more traction than their 3c maxx speed yet provides better treadwear and less rolling resistance than their maxx grip exo protection technology an extremely cut resistant and abrasion resist