The 1005D fits PCS1, PCS4, PRS7 and PRS5 with composite top tubes Repair Stands with composite top tubes. After years of research and testing we've built what we consider the best shop clamp made. It's smooth, versatile and built to stand up to everyday shop use. Camactuated adjustment system for quick entry, adjustment and exit Fully adjustable clamping pressure prevents damage to thinwalled tubes Handy spinner handle speeds large size range adjustments Grips n