So 4 EVs = 1 Stat Point, so 252 EVs would equal 63 stat points. And Bisharp's speed at level 100 is:
Positive Nature:
Uninvested, 0 IVs: 159
Uninvested, 31 IVs: 193
Fully Invested, 0 IVs: 228
Fully Invested, 31 IVS: 262 (This is Bisharp's maximum speed)
Neutral Nature:
Uninvested, 0 IVs: 145
Uninvested, 31 IVs: 176
Fully Invested, 0 IVs: 208
Fully Invested, 31 IVS: 239
Negative Nature
Uninvested, 0 IVs: 130 (This is Bisharp's minimum speed)
Uninvested, 31 IVs: 158
Fully Invested, 0 IVs: 187
Fully Invested, 31 IVS: 215