Get the locking mount. It won't deter a really determined thief, but it keeps the casual sticky fingers away. Plus it damps the vibrations which can't be a bad thing.
'04 BMW R1150GSA, '08 KTM 450EXC-R, '04 KTM 625 SXC
"You had better bring an extra magazine. Yeti's amped up on weird shit are hard to bring down." Lonestar2112