MTB with hardtail question

[ebike11]

What do you think of this steel frame to experiment on? really cheap but if you swapped brand componants onto it then it might be ok

https://www.aliexpress.com/item/32849381771.html?spm=2114.search0104.3.44.1de8105fP6o8od&ws_ab_test=searchweb0_0%2Csearchweb201602_1_10065_10068_319_10059_10884_317_10887_10696_321_322_10084_453_10083_454_10103_10618_10307_537_536%2Csearchweb201603_52%2CppcSwitch_0&algo_expid=851995cc-e568-40c5-a413-879a78527a75-6&algo_pvid=851995cc-e568-40c5-a413-879a78527a75

Seems like some odd tube shapes for a steel bicycle frame. Steel frames usually use straight tubing, so I'm suspicious. OTOH, I may not be up on current steel bike frame technology.

Personally, I'd be more inclined to go with a used bike from a known manufacturer. But heck, if you go in understanding that your are experimenting, then it has more to do with your sense of adventure than anything else.

hi there
I emailed that seller and im guessing the pics are of aluminum bikes. he said his listing includes both steel and aluminum in the option before checking out. but yeah, its aliexpress so who knows what will come in the mail

 

[2old]

Looks like those frames (except the one on the far right which appears to be steel) are hydro-formed which means aluminum to me since I haven't seen steel treated in that manner yet.

 

[ebike11]

Looks like those frames (except the one on the far right which appears to be steel) are hydro-formed which means aluminum to me since I haven't seen steel treated in that manner yet.

Ill have to email again and verify it