Mountain bike sizing is different than road sizing and I would predict a 16 - 17cm bike is too big for you. You need more standover room on a MT Bike and also need to reach the bars and brakes while extended off the saddle. Make sure the top tube is not too long.
I am 5'8' with long legs and ride a medium - 17. I have 3 bikes - a Specialized Stumpjumper M4 HT, a Specialized Stumpjumper FSR and a Santa Cruz Superlight. All are 17 cm. The two Specialized bikes are much bigger than my Santa Cruz, especially the FSR. Your size is more likely 14 - 15, maybe a 13 or small or extra small depending on the style of bike and fork size.
Look for a used small Santa Cruz Juliana - should fit you perfect.



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It was really helpful in making my decision.
