the original clamp is a bent piece of steel that pulls the gray part up and clamps the rack on to the bar.
File: IMG_3684.JPG File size: 1,552KB Image Serial Number: 000-3684 Camera Model: Canon EOS 5D Mark II Camera serial number: 0220102241 Firmware: Firmware Version 1.0.6 Date/Time: 2009:09:18 13:34:11 Shutter speed: 1/125 sec Aperture: 8 Exposure mode: Av Flash: Off Metering mode: Evaluative Drive mode: Continuous ISO: 400 Lens: EF100mm f/2.8 Macro USM Focal length: 100mm AF mode: One-shot AF Image size: 3000 x 1976 Rotation: none Image quality: Fine White balance: Auto Picture style: User Def. 1 (Standard) Color space: sRGB Saturation: Normal Sharpness: 3 Contrast: Normal Tone: Normal User comments: "the original clamp is a bent piece of steel that pulls the gray part up and clamps the rack on to the bar."
