Specialized Sirrus Sizing

Specialized suggests sizes but we'd always recommend test-riding the bike as everyone has different proportions and preferences. We'd say it's especially important if you straddle two sizes.

If you feel little difference between sizes, opting for the smaller generally offers more adaptability down the line. Bikes can quite easily be made to feel bigger, but when trying to shrink a bike that feels too big, your options are more limited.