To tame a Trike (Triceratops) in Ark: Survival Evolved, you must first knock out the trike using a weapon that induces torpor such as a slingshot or a bow with tranq arrows. Once the Trike is knocked out, you must feed it Carnotaurus Kibble, Crops, Mejoberries, or another type of berry.
Place the food in its inventory, and it will eat each item slowly. Using the Trike taming calculator, you can calculate how long each food will take, and how effective each option will be. Kibble is always the best choice if available.
The Trike is a great beginner dinosaur because it is easy to tame, easy to knock out, and has the ability to attack — though it isn't strong in comparison to other a lot of rideable creatures. The Trike is commonly one of the first rideable creatures that you will tame.
Once it's tamed, craft a Trike Saddle and now you can mount and ride your brand new Triceratops!
To tame one of those early game you just need to get yourself a slingshot (You can get the engram at Level 5), a low Level Trike (Level 1 - 30) and to be safe around 40 Stones. Then find some Trees and attack the Trike with your Slingshot then use a Hit and Run Technique. It should be much easier because the Trike gets stuck in the Trees and has to get around them. Which gives you enough time to shot him some times with your Slingshot. Once he is unconcious you just have to gather Berries. Use Mejoberries for a higher level after taming. Keep an eye on the Trike's Torpor(You find it in the bottom right hand corner in its Inventory). Once it drops on 0 your Trike will wake up and you have to knock it out again. To raise its Torpor you need to put Narcoberries in its Inventory, click on them and then click on the Remote use item Button (Each Narcoberry adds 8 Torpor). In the Dododex App you can Look how many Slingshot-Shots, Narcoberries and Mejoberries your Trike needs. Good Luck!
I have found that the Triceratops/Trike prefers the tintoberries, my strategy for taming lvl 10< Trikes on a new charachter i usually grab around 40-100 tintoberries and 3 or 5 narcotics/10-25 narcoberries and i use the starve method for around 4 minutes before using a narcotic and putting the berries in!
The trikes are amazing for gathering a huge amount of narcoberries, i ride my Trike to the hills and keep hitting the bushes and then I access the Trikes inventory and grab what i want to keep and then press drop all items for the Trike.
If this helped then please give me a thumbs up!