lil writeup about the atg tensor magnesiums:
Came from Venture 5.8 titaniums, skated these Tensors 4-5 times so far. There's definitely pros and cons. Wheelbase wise I'd agree with everyone else that they're between Indys and Ventures, probably similar ish to Thunders though I didn't measure exactly.
The good:
The biggest pro by far is how good the magnesium grinds on concrete, it makes chunks feel much smoother and you can grind curbs that are almost ungrindable on normal trucks. It's pretty crazy, went to a curb spot with some friends and everyone agreed that the difference is huge. Another nice thing is how light they are. Since they're 55mm tall which is noticeably higher than what I'm used to, I felt like I had to do put more conscious thought into all my flatground tricks, but it didn't require much physical effort like with standard indys since they are so light. The turn is also good too, really smooth and quite sharp. I struggled to fully max out the turn when trying to do sharp u-turns as my wheels would slide out before I maxed out the turn. I would maybe describe it as either a less twitchy, surfier and taller Thunder but really its just its own thing. Wheelbite wasn't really a major issue either since they're so much taller than I'm used to. Noseslides and tailslides are all on the baseplate too which is nice. The bushings and pivot cups all seem really high quality and broke in pretty quickly.
The questionable:
Someone earlier said that they thought it kinda felt like a Venture that turned better. While I agree that they turn better than Ventures, they definitely don't feel like Venture in any other way to me. They're definitely less stable, probably partially due to the increased height. But also just feel quite tippy in general and it definitely threw me off for some tricks. The pop feel I'd say is good, but doesn't feel as springy as as Ventures either. I guess this reduced stability and tippyness naturally comes with surfier turn and a higher truck. Maybe if I was skating aces before this I wouldn't have noticed it nearly as much but I haven't had a pair of aces in a while. Kingpin clearance is less than Ventures, but more than Indys, kinda similar to Aces, definitely sufficient.
They grind down significantly faster than aluminium trucks. This is somewhat a nice thing at first as you get your grooves in much quicker, but I feel like they'll probably last maybe half as long at most as a normal truck if you do a lot of grinds. For me it's worth the better grind but your priorities may differ. Lastly my biggest concern about these trucks is the durability. I already noticed a very small hairline fracture on the front baseplate on the edge of the pivot cup after doing slappies for a few hours at most. The axle also seems ever so slightly bent, at least more so than my Venture tis which I skated for much longer and my roommates brand new Aces. I'm not sure if it was like that when I bought them as I didn't check. It all feels and skates perfectly for now, but if it gets any worse then its going to be a bit of a problem. I'm also 6 5, 190 pounds and kind of heavy footed so that certainly doesnt help, but then again I skate all low impact stuff so no axle should be bending on me this early.
I'm not sure if I want to keep skating them because of how high they are and how different the pop feels, maybe I just need more time. But if I go back to Ventures I'm definitely going to miss the turn. Also am already spoilt by how they grind on concrete so I almost want to try and throw the hangers on a baseplate that makes it lower and doesn't ruin the geometry and see how that goes. Thats how you know this thread has really pushed you off the deep end. Hopefully the axle doesnt bend more and the baseplate lasts (I think it will be okay)
TLDR: Grind crazy good on concrete, turn great, higher than I'm used to, responsive and super light which I appreciate. But don't feel as stable as Ventures and not as used to the pop (maybe just need more time), and definitely have concerns about the durability.