  We have discussed the stop mass and possible signal processes within a class
of SUSY GUTs with non-universal gaugino masses. This class of models predicts
the stop mass in a wide range from about 400 GeV to 8 TeV, and the DM
constraints bound it as $m_{\tilde{t}_{1}}\gtrsim 500$ GeV. Being the lightest
supersymmetric particle the neutralino always takes part in possible signal
processes, and its mass is realized as heavy as about 2.3 TeV in the
fundamental parameter space. Similarly, the lightest chargino mass can be
realized beyond 3 TeV, while the DM constraints bound its mass at about 2.7 TeV
from above. We find that the stop mass below about 1.2 TeV is excluded by the
analyses over the $\tilde{t}_{1}\rightarrow t\tilde{\chi}_{1}^{0}$ decay mode
performed under the current experimental setups. This mode can help probe the
stop mass up to about 6 TeV in future collider experiments. Similar analyses
yield that the stop mass will be able to be probed to about 4.8 TeV and 5 TeV,
if the $\tilde{t}_{1}\rightarrow b W^{\pm}\tilde{\chi}_{1}^{0}$ or
$\tilde{t}_{1}\rightarrow b q\bar{q}^{\prime}\tilde{\chi}_{1}^{0}$ decay modes
are allowed. We show that the former decay mode is not available for this class
of SUSY GUTs in the current experiments, while it will be able to be tested in
future.
