The Mach bike is better because it is faster than the other bike; but if you like messing around and doing tricks then the other one is better.
Go to the bike store in Mauvile city
The Mach Bike.
You Can Aquire Either An Acro Bike Or A Mach Bike In Mauville City At Rydel's Bike Shop.
In mauville city
Emerald's better.
Go to the bike store in Mauvile city
The Mach Bike.
The Acro bike.
You Can Aquire Either The Acro Bike Or Mach Bike In Mauville City At Rydel's Bike Shop.
You Can Aquire Either An Acro Bike Or A Mach Bike In Mauville City At Rydel's Bike Shop.
Muaville
you get the slow bike and press a
In Pokemon emerald the bike is found in mauville city right of the Pokemon center talk to the guy with the red hair.
you get it from the bike shop in Mauville city aka elec. gym.
go to the bike shop in mauville and talk to the guy who gave you the acro bike and you can switch bike or just talk to him if you never had a bike.
with you bike :)
get a bike