Don't save too much weight on wheels. I built myself high-end carbon (Nextie) "light trail" wheelset for my accoustic enduro bike on DT 240 hubs. Total weight was still reasonable 1600 grams because it was still meant to be ridden on trails, the guy who built it for me runs 1200 gram XC version :- ).
I felt so unsafe on those wheels.. ridden them with too much babysitting even when not necessary. I am glad I gave them away to my wife who runs them on her Levo SL now. And I am barely 85KG (starved from too much work in past year).
There is reason why high-end (even 2000+ euro) carbon wheelsets for enduro are still 2000 grams often. Lightweight parts are finally out of fashion and things are built to be used properly and to last.
Once you run proper 1800-2000 grams wheelset, with 1200+ grams tires and cushcore insert on back you'll realize the weight gain is absolutely worth it :- ). The secure feeling, safety and amazing damped wheel that's like 2cm more of suspension is worth any weight penalty.
Or just watch Phil's bike on Cushcore where he literally slams in full speed on sharp rocks from 2 meters drops with 9 PSI lol. Burly wheels are massive hindrance on regular bike if you're unfit... but on e-bike? Burly wheels all the way. Save weight on cassette.
Cross country racers are now running 900 grams tires with inserts (Nino Schurter) :- ) E-bike lets you get away with so much, Levo SL and Kenevo SL are so light that you can splurge on bit of weight in exchange for riding quality.
Even good carbon handlebar doesn't save any weight. My two bars, Enve DH 800/31.8 and Deity Speedway (810/35) are 250 grams. Most decent alloy handlebars are 310 grams. Nothing saved, it's just based the feel (and look).
Don't fall on weight-weenie trap on e-bikes :- ) ! It's all about ride quality now when it comes with zero pedaling penalty.
Also... weight-weenies often cheat ;- ) Do they count with 400 grams on tire sealant for 2 29" wheels ? I highly doubt. Never trust numbers on internet forums.