2008 Haro Sift R3 or 2020 Atroz Diamondback?
 

Guys i am new to biking having a hard time finding people to talk to make a decision. I have 2020 Atroz 1 stock 27.5 non tubeless tires and just bought a 2008 Haro shift R3 well maintained with shimano Diora hydraulic brakes etc. which one is a better bike in your mountain biking experience i was thinking about putting the good parts from shift r3 on to the Attoz or it is better to keep the shift r3 26inch tires tubless setup.

Help
 

Any advice please will be helpful.

Not trying to be annoying, but which one do you like riding more?

Good question
 

I like the 2020 Atroz more because of the handle bar but i think i can upgrade the other one to get that feeling just confused need a little guidance on which frame is better etc. Before i star spending money and have to sell one too soo and help will appreciated.

why do you have to sell one? I'd keep both but thats just me. But if I had to choose Id choose the newer of the two. its geometry is probably better than the older haro.