What model is my Cannondale

Hi,
A month ago I bought a used Cannondale Trail SL 2010. It has had a few of the components changed from the original, such as the brakes, rear derailleur, conversion to a 1x9.
I am wondering if all Trail SL models of 2010 share the exact same frame? I was wondering if there is anyway to tell the original model that I have? Just out of curiosity more than anything else.
A picture that may help -

I've also ditched that saddle since the pic!!
A month ago I bought a used Cannondale Trail SL 2010. It has had a few of the components changed from the original, such as the brakes, rear derailleur, conversion to a 1x9.
I am wondering if all Trail SL models of 2010 share the exact same frame? I was wondering if there is anyway to tell the original model that I have? Just out of curiosity more than anything else.
A picture that may help -

I've also ditched that saddle since the pic!!
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My Cannondale Trail SL - SOLD
My Cannondale Trail SL - SOLD
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My Cannondale Trail SL - SOLD
My Cannondale Trail SL - SOLD