Bumps and Grinds

Bumps and Grinds is a side mission in GTA Liberty City Stories. It has ten different courses with a time to beat for each one. Each one you pass will unlock the next in the mission. To start get on the Sanchez in the northern part of the Harwood Dirt Track. Once you start you will have to beat all ten time trials to pass the mission. Completing this is required for 100%.

Course One
The first course time is 0:58.

Course Two
The second course time is 1:15.

Course Three
The third course time is 1:14.

Course Four
The fourth course time is 1:13.

Course Five
The fifth course time is 1:30.

Course Six
The sixth course time is 1:32.

Course Seven
The seventh course time is 1:30.

Course Eight
The eight course time is 1:51.

Course Nine
The ninth course time is 1:23.

Course Ten
The tenth course time is 1:19

Reward
For each level you complete you get a $100 bonus, plus a Manchez for completing every level. You will also get a $10 bonus if you jump a ramp and it's more than 8 meters.