Thought I'd post a weight comparison . All wheels weight with discs ,cush drive and sprocket.
HP4 forged wheels F-14.4 R-15.6
BST Carbon wheels F-13 R-13.2
Total savings 3.8 lbs
That's just the dead weight saved. The reduction in the rotational inertia would be even more impressive and noticeable.
Do us a favour, let us know how it "feels" compared the the HP4 forged wheels.
Current garage inhabitants: 2004 R1, 2015 KTM 300 EXC 6 Days, 2014 HP4 Comp