Easton ea70 xl mtb rear wheelwe believe 20 is the magic number thats the internal rim width of our new easton xl wheel here its right in between our all mountain rim widths and our xc rims its perfect for all around trail riding the type of riding most people consider mountain biking best of all these wheels are light fast and strong features finish extruded black vinyl graphics weight 1600g fr type aluminium mtn bike clincher rim material ea70 aluminium sleeved internal rim w