DMR Diamondback riser reducers. These are for our Diamondback risers which are machined for mx moto style bars that are 1-1/8" in the center where the risers clamp on, but these reducers/adapters, reduce the clamping area down on our risers to work on bars that are 1" in the clamping area.  They are made from 6061 T-6 aluminum and available in numerous finishes.  These are solid with no slipping or movement. For those who are unsure of using a reducer, we have plenty of stunt guys using these with zero issues. This same design has been used in the motocross world for decades. Made in U.S.A. Made in U.S.A.