All

Dont be fooled by the high octane. Its high octane because of the lead which is the cheap way to make octane. The right way to do it is a good blend….. race gas.

ETS PX11 is what we have run and trust. Super stable and makes really good power gains. We have run it in both the YZ125 and YZ250 on the dyno and on the track at Straight Rhythm and Two Stroke Nationals. We were racing against 150's on a YZ125 and would say we more than held our own. RC

Jesus I wrote a post like this when I was your age exact same question and story. I went for a KTM150 2012 model, I liked it a lot especially the ergo's im also 6ft anyway, I love my power however when I rode my friends YZ125 and honestly preferred it, it felt much more planted and the power delivery was much smoother it had much punch at the bottom then revs out decently where as the KTM150 rips to the top it, but this is comparing a 2012 model KTM I don't know what the current ones are like...

He’s 170lbs and the new ktm 125s make close to 40hp. You guys were mentioning his weight like he’s 240lbs. 125s are what Moto should be. They are pure fun. Get one.

Get a KTM 150, jet it, run quality fuel from a consistent source and upgrade the forks to KYB cartridges. I have a buddy who's about your size (a few pounds heavier), late 30's... He had a Honda 450F. I loaned him my YZ125 in 2021 for the two stroke race at Washougal and he never rode the 450 again. He bought the 150SX and he's having more fun for more laps. The 450 was riding him after about three hard laps. I own 125, 250 and 500 two strokes. I race them all and have time on all brands...

That question is almost Dumbgeon worthy. Of course they should run blue. Way better looking.

Yes

I used to run VP113 mixed with Motul800 and it created a very unique smell. All my racing buddies loved it. When I switched to VP110, it didn't have the same smell. The VP113 is oxygenated, the 110 is not. Only reason I switched is because my local vendor quit carrying the 113.

If cost doesn’t matter, VP MRX02 (or the soon to be released MRX03) with Maxima K2 or Yamalube R is what was common in the early 2000’s for nostalgia of that era. If you like the highly aromatic, sour smelling exhaust.

And elf race fuel. Oh boy the sweet sweet carcinogens

Elf oil/fuel was the best ever.

I was building bikes back then and it was devastating watching a top rider ringing the neck of a highly tuned 125 for all he was worth, just to stay in front of a normally top ten rider on a stock 250f with a pipe. The 450 take over of the old 250 class happened a little slower, but it was still the main reason I exited the industry in 2005. The cheater bikes were fast and easier to ride, but will never be more fun.

Aided by a double displacement rule for the former 125 class, and a 1.75 times displacement rule for the former 250 class. When advantages such as those are given, well, the market / customers will take them. With those rules, it was a foregone conclusion that 4 strokes would take over. One of the most idiotic and destructive things to happen in Motorcycle Sports.

just watched the vid, and it straight just pissed me off on a Monday afternoon. They wrecked the sport in so many ways w/ the stupidity of the displacement rules. Sigh. Oh what could have been.......