Question

What are all the locations in ORAS that have bike obstacles and what are the obstacles for each location?

Comments

Probably a bit too many to list. I know you can get two bikes though so it won't really matter if you don't expect an obstacle.

Answer 1

Granite Cave - Muddy Slopes
Route 111 - Muddy Slopes
Jagged Path - Muddy Slopes and Stumps
119 - White Rails and Muddy Slopes
Safari Zone - Muddy Slopes, White Rails, and Stumps
Lilycove City - Stumps
Shoal Cave - Muddy Slopes

Thats all I found

Source: 45 mins of running around Hoenn.

Answer 2

I couldn't find exact objects and locations but here's what I found:
Acro bike:
- Route 119 (white rails)
-Safari zone (white rails)
Mach bike:
- Granite cave (muddy slopes)
- Sky pillar (cracked tiles)
Hope I helped.