Park Tool 100-3C Professional Adjustable Linkage Clamp BX PSI The outer PC shell is

The outer PC shell is shaped for speed

If you are a size XS or S in bibs

Luxurious and lightweight

Lightweight SST alloy rails

This provides comfortable hand positions for riders who like to reach down to the drops

Park Tool 100-3C Professional Adjustable Linkage Clamp BX PSI The outer PC shell isOur tried and true adjustable linkage clamp design has been a constant companion for professional mechanics around the world for over 50 years, and it still securely holds most traditional seatposts and frames. A great option for assemblers and mechanics who work on older bikes, with dead simple single lever operation and cable reliefs on both jaws. The 100 3C features solid cast aluminum construction and durable replaceable clamp covers.