Which used bike to buy?

I need help for my first road bike. I plan to do triathalons (olimpic and half) and use it on a trainer at home.

1. TREK  Domane Al2 – 430 €

2. No Name bike – carbon body, Shimano Ultegra 6600 Sl, alu handelbars, FSA carbon stem – 450 €

3. Neither, I will keep looking

Both are 54 which works for me.

by Aranog-Nosmoke