Racetech RTB2005C Aluminum Roll Bar Clamps

A proper back-mount seat installation needs more than just the bracket at the seat. You also need a clean, strong way to tie that bracket into the cage. The Racetech RTB2005C Aluminum Roll Bar Clamps are designed to do exactly that, giving you a precise, motorsport-correct way to mount compatible Racetech shoulder brackets to a lateral or diagonal roll cage tube. For serious track and race cars, these are a key part of a properly supported seat installation.

Why we like the RTB2005C

• Precision cut from 20 mm thick 6061 aluminum for excellent strength and durability
• Designed specifically to clamp around a roll cage tube and bolt to the RTB2115B or RTB3115B shoulder bracket
• Creates a clean, rigid back-mount connection between the seat and the chassis or roll cage
• Sold as a pair for one complete seat back-mount setup
• Supplied with 2 M8 bolts and 2 flat washers per clamp
• Available in multiple tube diameters to match common roll cage sizes

Fitment and compatibility

The RTB2005C clamps are intended for use with compatible Racetech back-mount shoulder brackets and Racetech 119, 4200 and 4100 Series seats. These clamps fix around the roll cage tube and provide the connection point for the back bracket, allowing the seat to be properly supported at shoulder height. Selecting the correct clamp size for your cage tube is critical for a safe and secure installation.

• RTB2005C38: 38.1 mm / 1 1/2 inch tube diameter
• RTB2005C40: 40 mm / 1 37/64 inch tube diameter
• RTB2005C41: 41.3 mm / 1 5/8 inch tube diameter
• RTB2005C45: 44.5 mm / 1 3/4 inch tube diameter

Installation notes

These clamps should only be installed after the seat position, shoulder bracket placement and final driving position have been established. Clamp size must match the actual cage tube diameter, and the seat back mount should align correctly with the shoulder area of the seat before anything is drilled or tightened permanently. For race and high-speed track cars, we strongly recommend installation by a qualified fabricator or race shop familiar with proper seat and cage mounting practices.