OK so if you want to tame a trike here is a guide

1. Build a tower or have tribe mates

2. Craft bolas, slingshots, and bows

3. Get berries ALOT OF THEM

4. Find a trike

5.Go on tower or have tribe mate attack first

6. Feed it berries

7. Get a saddle

Congratulations you have a trike to ride

Softpaw