Highly recommend getting the codex, as for the bikes we have 4 variants of them, classic attack bike with the side car, normal bike squad, black knights, and black knight command squad. All of these have the Ravenwing special rule which is the most powerful rule in our codex it gives anyone with it the ability to reroll our jink saves, another thing to note about the ravenwing is that all our non vehicle stuff comes stock with has scout, hit and run and teleport homers.
Black Knights are our real heavy hitter for ravenwing bikes they are vets on bikes with instead of twinlinked bolters, 18" twinlinked plasma guns, have corvus hammers which are S+1 AP- rending, and skilled rider so 3+ rerollable jink save. Then the command squad is that but locked at 6 men instead of the unwieldy 10 max in a normal black knight squad and has command squad stuff. Lastly both of these squads can take a grenade launcher which has our special stasis grenades and rad grenades, stasis is a small blast S3 AP- that any unit hit by it for the turn is -1 WS, BS, Ld, and I. Then the rad grenades are also small blast S3 AP- and every 6 to wound is 2 auto wounds instead of 1
Then our "normal" bikers and attack bikes have all the same stuff as the vanilla codex.
As my last comment on non vehicle ravenwing our named character for them has a jetbike so have fun with that, and as for our ravenwing vehicles I will let you research those and see the cheese that is the darkshroud and their formations plus our flyers are pretty good too one thinks its a vindicator.
As for the vets our version of vets is a 90 point squad of vets with no ability to take jump packs which sucks nor any decreased power weapon cost, or extra bullets. But they are cheaper, easier to take in formations and can still take 1 heavy and special weapon, plus everyone can take combi guns, also to me they look cooler than normal vets.
Hope this helps and welcome aboard.