Happy Holidays!
Depends on how much rise you need. And whether it has to be separate cockpit.
Why not just run a separate positive angled stem?
Correct me if I am wrong, but wasn't the reason of the riser bars appearance in the market, because of the Low Stack of the Chinese frames? If so, is there any point to have a riser bar on a bike with "normal stack"?Maybe to have the handlebar slammed?
Tavelo, XMCS, Winspace, Evolve.