I don't trust aluminium bars. So I found few stem's 25.4 for steel bars, because they are much stronger and flex in a good way, and they are much cheaper.
STEM'S:
https://www.ebay.co.uk/itm/gobike88-SATORI-Stem-8cm-25-4mm-Black-40-DEGREE-ANGLE-OF-ELEVATION-043/151144153490?hash=item2330e4c192:g:UVoAAMXQBlJSCjus:rk:2:pf:0
https://www.ebay.co.uk/itm/UNO-AS-009-Aluminum-Alloy-AL-6061-35-Bike-Bicycle-Stem-Black-25-4-x-75mm/191300901413?_trkparms=aid%3D555018%26algo%3DPL.SIM%26ao%3D1%26asc%3D54618%26meid%3Db9c1717bf8704728b0ba200ef1badd8d%26pid%3D100005%26rk%3D5%26rkt%3D7%26sd%3D141720205986%26itm%3D191300901413&_trksid=p2047675.c100005.m1851
HANDLEBAR'S
https://26bikes.com/mtb/parts/handlebars-reductions/extreme/prod/dartmoor-toxic-v2
https://www.chainreactioncycles.com/lt/en/ns-bikes-district-bars/rp-prod139634
Only one con, the weight.
I solved my problem. I hope it will helps for some one too.
Cheers.