plotting - RegionPlot - not a valid region to plot

I have two regions like this

reg1 = ImplicitRegion[(-5. + x)^2 + (-3. + y)^2 <= 0.25 || (0.386909 + x Tan[25 \[Degree]] 
<= y <= 5.61309 - x Tan[25 \[Degree]] && 0 <= x <= 5.), {x, y}];

reg2 = ImplicitRegion[(-5. + x)^2 + (-3. + y)^2 <= 0.49 || (0.166233 + x Tan[25 \[Degree]]

<= y <= 5.83377 - x Tan[25 \[Degree]] && 0 <= x <= 5.), {x, y}];

Show[RegionPlot[reg1, AspectRatio -> Automatic], RegionPlot[reg2, AspectRatio -> Automatic]]

I need to see and work with their difference

RegionPlot[RegionDifference[reg2,reg1], AspectRatio -> Automatic]

but it brings about an error

RegionPlot::invplotreg: {RegionDifference[ImplicitRegion[Plus[<<2>>]^2+Plus[<<2>>]^2<=0.49||(0.166233 +Times[<<2>>]<=y<=5.83377 +Times[<<3>>]&&0<=x<=5.),{x,y}],ImplicitRegion[Plus[<<2>>]^2+Plus[<<2>>]^2<=0.25||(0.386909 +Times[<<2>>]<=y<=5.61309 +Times[<<3>>]&&0<=x<=5.),{x,y}]]} is not a valid region to plot. >>

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