Go up from slateport city and you will find a house up there. Go right from under the bridge and go up. Battle with your rival MAY and go up, left and up and you will reach Mauville City. Go to the Pokemon centre and just right to it is the Bike shop. Go in and talk to the person and he will give a bike. There are 2 types of bikes.
Mach Bike (the bike that goes very fast and is needed to go over the cracks) .
Acro Bike (the stunt bike slight slower than Mach bike and when you press B it jumps) .
The Mach Bike.
Go to the bike store in Mauvile city
You Can Aquire Either An Acro Bike Or A Mach Bike In Mauville City At Rydel's Bike Shop.
In mauville city
get the acro bike by ridel and hold the B-button
The Acro bike.
The Mach Bike.
Go to the bike store in Mauvile city
get a 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.
There is a bike shop in Mauville, east of the Pokemon Centre. Talk to Rydel (the owner) and chosse your bike!
In mauville city
There are actually two different bikes in Pokemon Emerald, the Acro and the Mach bike. You can obtain either one of them (but not both at once) in Mauville City.
you have too be under the bridge on the bike route with Pokemon emerald in your ds.
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.
It is very simple, you get it in Mauville City where you get the acro bike and the bike shop. You switch between the two.