Recommended BMS Parameters for 18650 lition 7S 24V Battery Pack
A battery protection module should not be used to prevent overcharge and discharge, but only for protection in case the normal charging and cutoff circuits fail. Your BMS specifies 4.28V and 2.8V as the upper lower limits. Those voltages are outside the range of healthy battery operation, but should be OK for protecting against catastrophic failure. 

The balancer circuit should pass enough current to correct any imbalance condition. Theoretically that means it must match the charging current, because one cell could become fully charged before the others reach peak voltage. In practice a lower balance current is acceptable provided that the cells are not far out of balance.  

Your cells have a capacity of 2.6Ah so they can be charged at 2.6A (1C rate). But the balance current is only 0.168A, so if you charge at 1C those cells better be in good balance! The answer to this issue is to measure the individual cell voltages and charge the battery slowly (ie. not much higher than 168mA) if they are significantly out of balance. Then you can safely use the BMS at full current for subsequent charges.