The specialized traverse 650b wheelset use a wide rim to deliver increased stability and traction when you39re riding the wider rim profile gives tyres more volume for suppleness and it supports the tyre better the 650b wheel size gives you the advantages of a 26 wheel and a 29er so you get excellent agility nimbleness and acceleration combined with great rolling and momentum these new specialized wheels are also compatible with their new tubeless plug system an easy super lightwe