The MAXXIS SHORTY Tyre 29x2.30 Folding 3C Tubeless Ready Exo Protection uses a harder, longer lasting base layer and two progressively softer top layers in order to optimise traction and stability. Maxxis offers three different configurations of their 3C Triple Compound mountain technology; Maxx Speed, Maxx Terra and Maxx Grip. Review Please read the review found in a leading MTB cycling magazine. 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-resistant material added to the sidewalls of select mountain tyres.