The 100-3C features solid cast aluminum construction and durable replaceable clamp covers.
Clamp has reliefs on both jaws for cable routing.
Fits all generations of PRS-2, PRS-3, PRS-4, PRS-12, and PRS-33 stands, as well as PRS-5 stands manufactured before 6/96
Fits bike frame tubes from 1" to 1-5/8" (25mm to 41mm)
The clamp jaws are nominally 4 inches (10cm) wide
Uses Park Tool 468B jaw covers