Crank length for 4X bike

Hi Lee, my name is Daniel and I’m from Colombia.

Could you give me your advice about a doubt I have??

I’m gonna buy a pair of cranks, and I practice 4X and have a hardtail, what size of cranks are best for me? 170mm or 175mm? I’m 5’8″.

Thank you and hope you write back soon.

Hey Daniel.

175s will work well. I’m about the same height, and that’s what I run for everything except downhill. My DH bike has 170s for extra ground clearance.

— Lee