Patented aluminum clamps · Designed & made in Pocatello, Idaho

TKO Clamping Systems

Sizing tool

Measure my tube

TKO clamps are sized by the tube's OUTSIDE diameter — not the inside. Here's how to measure it in under a minute.

1 · Tube shape

2 · How are you measuring?

  1. Open the caliper jaws across the outside of the tube, square to the bar.
  2. Measure on bare tube — away from welds, tabs or bends.
  3. Take two readings 90° apart and use the larger one.

3 · Enter your outside diameter