Thomson elite x2 road stem the design team for the new thomson 318 had a tough goal make a stem better than the thomson elite road and mountain stems early tests showed that thomson competitors 318 stems were heavier and weaker than thomson elite 254 and 260 stems at thomson the new stems were not done until they were stronger lighter and longer lived than the legendary thomson elite the new thomson x4 for mountain and x2 for road allow you to realize the benefits of stiffer forks and