Zoro without swords will lose to Luffy without devil fruit. Luffy has future sight and advanced coa and coc. His laijutsu will do jackshit to Luffy with Luffy covering his body with coc. On top of the fact Luffy can see the future, he will easily see Zoro's attack coming, the same way he saw dodged Kaido's thunder bagua and yonko's hakai.
That is just your headcanon. Luffy mastered his speed, endurance as per the fruit's convenience.
Gear 2 is faster not because his body is lighter, But because he was pumping more blood in his veins. The speed and exertion is his own, the only thing he gets out of gear 2 is extra strength through blood doping.
Not to forget after his training with sea stone cuffs at udon, he has become even more powerful, agile and fast. He was blocking bullets and attacks from multiple smile users at the same time.
Bullshit. He lifed blocks with kid in sea stone cuffs. Pre-tineskip Zoro picked up a house. Base luff (non devil fruit) has zero feats. He has access to no gears so no super speed in comparison to his gear 2 or gear 4. And he has zero destructive feats that place him on mountain level without gear 4. So if he loses his fruit now he has no feats that would place him in the same ball park.
He didn't die to enel. Why because of his fruit.
Didn't died to bullets in the past. Why? Because of his fruit.
Took multiple rokoguns and didn't die. Why because of his fruit
Can only use redhawk because of armament AND gear 2 ( which can only be done because of his fruit)
Name me luffys ranged attacks that doenst use his fruit. I will wait.
Luffy losing his fruit loses to Sanji.
Luffys body is Naturally faster because it is naturally lighter since it's rubber and not bone and flesh even without using gears.
Zoro has a fighting style predicated based on have no swords.
Without gears Luffy has less movement speed that Zoro. He doesn't have full mastery over future sight hence why kaido is still able to tag him. And defense's are naturally lesser because of him not having his fruit. And none gear Luffy ain't tanking a thunderbagau or blast breath or hakai