The thule one key system x8 is a must have for all thule system owners it provides you with the ability to replace your current locks on your rack with a brand new set which are all the same eliminating the need for countless different keys and all the hassle that comes along with them the set of 8 locks that are all compatible with the same grip friendly thule key makes your bike transporting life that extra bit easier going thule one key system x8 features set of 8 locks all u