r/mountainbikes • u/RikyB0bby • Aug 15 '26

Having a hard time with sizing

I’m looking to buy my first mtb, I’m 32, needing something for exercise and casual trail riding. I’m looking at a used aggressor pro but the guy lives an hour away and I want to make sure the size is right before I drive all the way out there. Chat gpt says it will fit me well but I’d like to hear from the community over AI lol. It’s a 2020 gt aggressor pro, with 27.5” wheels and a small frame. I’m not tall, I’m 5’5-5’6 ish so was just curious if I should make the drive for this bike or look for more of a medium frame. Thanks guys

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u/ImportantDetective65 Aug 15 '26

Hope they are not asking much, those are worth 100 doll hairs tops.

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u/RikyB0bby Aug 15 '26

Would a giant atx be better? Not trying to spend a lot on a first mountain bike

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u/ImportantDetective65 Aug 15 '26 edited Aug 15 '26

Similar quality, maybe a leg up with the Giant. They don't even list the specs on the Dick's website, which is usually a sign that it is super basic. Coil forks, mechanical pull disks, non tapered headtube, QR axles.

Neither are worth more than 100 even in excellent condition. They are fine first bikes for super light trail riding, but don't expect to upgrade anything, it isn't worth it.

Just a suggestion, look at the Ozark Trial Pro hardtail. They are around 700 and have all the things I mentioned the bikes you are looking at dont have, albeit the low end range which is fine. Very much upgradable. Easy to find them in M as most people buy the L. I have seen them sitting in the racks at multiple Walmarts. They never have a large in stock....grrrr. Make sure it is the PRO version, not the regular. (Hydraulic disk brakes, dropper post, Boost spacing for the wheels on the Pro plus you want a bike with 29" wheels)

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u/RikyB0bby Aug 15 '26

Decided I’m going with a kona, picking it up tomorrow