Start with franklin since his special ability makes everything way easier, and grab the pegassi bati 801 motorcycle for best results. When approaching jumps make sure you're hitting them dead center, and use slow-mo right as you leave the ramp to adjust your landing angle. Quick reminder if you mess up a landing just switch characters and back to repair your ride instantly.

You'll need to nail 50 jumps total but only 25 for completion credit. Most important thing is getting all wheels down at once during the slow-mo camera angle, or it won't count. Getting stuck? Some ramps are pretty well hidden especially in blaine county where there's 10 of them compared to the 40 in los santos.

The show off achievement unlocks gradually as you complete more jumps, with bonus vehicle colors at 5 10 and 25. Good to know that sports cars work better on some specific ramps but the bati really is your best friend for most of them. Take your time lining up each approach, and use that left stick during slow-mo to get your wheels lined up just right before touchdown.