MTB Rental

Hi,

I am new to Sydney so still trying to find my way around. I have a friend over from the US this week and we are looking to go for a ride on Friday afternoon (probably Manly Dam if it is open). He won't have a bike so I am looking to find rental options in/around the city or lower north shore. I have looked ta a few online but most either don't seem to have good quality bikes or will only rent for a minimum period of 2 days (we probably only need 6 hours max).

Any thoughts?

Thanks.

[Mod. moved to shopping]