Leverage? I dunno. I agree though, I love 149, 159, and 169. I used to have some 169 standards and they were killer. I think a lot of folks agree that the proportions and turn start to feel really good around at 149
I think with the shorter axle on 139/144 it feels stiffer or something.
And apart from having more board to land on when jumping down stuff, maybe the 8.5 deck + 139s combo turns better too because of more leverage from the wider deck
Didn't Leo Romero used to skate 129s on like an 8" or 8.25"? He ended up finally switching to 139s a while back hahah
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I think 8" and 8.25" trucks are best when they're lower, and with a wider wheelbase. So like, thunders or venture lows. And the thunder 8" are lower than the thunder 8.25"... Indy 144s are good but I like matching my wheels to the edge of my board(149s on 8.25 deck) and indys are kinda tall for an 8" board for me, I know lots of pros ran Indy 139s though throughout the 90s and beyond... I think these sizes work best with sub-52mm wheels but you can absolutely have a good time on 144s with 56mm wheels, I just don't like how it feels say, 50-50ing a ledge cause it's not as flat to stand on as a wider truck, tougher to pinch on rails, etc
For 8.5" trucks, I think Indy works the best imo but pretty much any mid or high truck from any brand works great in this size depending on how you like your pop angle/feel(truck wheelbase). I think these work best with like, 52 to 54mm wheels but depending on your wheelbite situation or how you like your pop angle, I've ran 58mm radials on 149s with no risers and it worked really well. I think 149s work really well for pinching and locking on rails, vs the tighter trucks, 139s, like double-heel locked 50-50s in the 90s
For 8.75 and 9" trucks I think Aces work best, with bigger boards often having longer wheelbases, and wider setups often having bigger wheels... The smaller wheelbase of Aces balances it out a lil. Indy, lurpiv, slappy, good here too if you like a steeper pop angle.. but if you use smaller wheels on a wide truck those might work better for you than aces
And then there's kick angles on certain decks, like a mellow kick deck might work really good with indys, lurpivs, venture highs, whatever and a board with steeper kicks might match aces pretty good... And if you want the chillest pop angle you can run like, smaller wheels, aces, and a baker OG shape or easy rider or something
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149s for me seem to be the sweet spot, for running 8.25 or 8.5 boards
I mean for stage 7 and 8, they were 146s(8.375"). I had a couple sets of each and loved them, then I went to 149s cause they both had a 4 in it and figured it was the same shit
I don't know why I don't like 144s as much, I should try some again since I've only had hollows in em... But I think 149 are more versatile.. I can slap some old super ground down 149s on a reissue 80s board and wheels and they fit right in. 139/144 are like, 90s size trucks to me... And if your riding those sizes you're either into like, tech skating, or are a smaller person, or whatever. The 8.25" trucks are hugely popular though and hella pros ride them, Jerry and Spanly included... Also a lot of kids think you absolutely have to match your board size exactly to your truck size, and 8.25 is the best selling board size right now
It's such a small difference between 144 and 149 but there's just something about the 149s, heavy as they are, that I like so much