The Maxxis Rekon Race is a semi-slick XC race tire that features the lowest profile tread in our XC line. It is a great choice for dry XC trails and short track racing.Feature:- Dual compound- 60 TPI or 120 TPI casing options- EXO sidewall protection- Wide Trail (WT) sizes are optimized for 30mm inner width rims- Select specs are Tubeless Ready (TR), confirm in table belowTechnology:Wide trail:- Wide Trail (WT) construction optimizes the tire's tread layout and profile on today's modern, wider rims. Traditional tires are designed around older, narrower rims and can create an overly square tire profile, leading to less than optimal performance. WT tires are optimized for a 35mm inner rim width but are proven to work over a range from 30-35mm inner rim widths, depending on the rider's preference.Maxxis Wide Trail XC tires are optimized for use with 30mm internal width rims, but they will perform well on rims as narrow as 25mm. Maxxis does not recommend rims wider than 30mm or narrower than 25mm