Spiky circles

My caption cleverness is apparently at a low ebb. Chainrings and a crank borrowed from Mr. Bike Mechanic today, for the circles prompt.

[Mags]

Haven't seen anything like it today. Well done!

[Corinne C]

Perfect title and great pic

[GaryW]

Super cool idea for circles!

[Babs]

What an interesting circle, great find

[PhotoCrazy]

Nicely done!

[John Falconer]

Spiky circles is good! Nice shot.

[Walks @ 7]

Well done

[Shutterbug]

Nice idea for getting many interesting circles.

[Valerie Chesney]

Good one, many circles here..

[Diana]

Great capture of the circles!

[KoalaGardens🐨]

oh yes!

[Susan Wakely]

Great idea.

[Faye Turner]

Great find

[Wylie]

Hits the mark!

[Ann H. LeFevre]

How about "Taking a Stab at Circles" because of the spikes...no...Spiky Circles is just fine!! LOL Clever circle and good shot!

[Helge E. Storheim]

Good one!

[Pam]

Great shot, and idea!