Hi Kennet,
It turned out that my previous answer was not completely correct and I beg you to accept my apologies for this mistake.
In the Q3.2009 version of the control there is away to set up multicolor linear indicators (unfortunately not present in our online examples yet). The peak indicator can be created using a
StateIndicator.
Please, find the attached project which demonstrates how to set up
RadGauge for a similar scenario.
Hope this will help.
All the best,
Velin
the Telerik team