Magneto hubs feature thicker flanges for extra strength so we recommend spokes with wider J-bend. Spokes with tighter J-bend also work but it requires to bend the spokes slightly when being laced. This might cause a cosmetic issue since it can mark the flange sometimes but once the wheel is tensioned it works perfectly. Flybikes spokes option will be available soon.
see full specs here: https://www.flybikes.com/product/magneto-front-CrMo-hub