Some front ends don't have their triple trees drilled and tapped. For this we offer 39MM fork clamps. Chrome plated as shown. With these clamps and some washers from home, (not included), an outstanding platform can be made. Insure your forks are indeed 39MM as sometimes the down tubes are a size larger at 41MM. We can accommodate should that be the case. Offered as shown, new in the box at $20.00 per set.