Hard Folding Reviews

BAKFlip MX4 Review: Still the Hard Folding Benchmark?

A practical review of the BAKFlip MX4 covering security, weather performance, install, and value.

Updated Jun 20, 2026By Tonneau Finder EditorialReviewed by Senior Product Reviewer

Pickup truck with a closed tonneau cover

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Table of contents

Start with fit, not the cover brand Match the cover to how the truck is used The main tradeoff is access versus security

Start with fit, not the cover brand

The best tonneau cover is the one that matches your exact bed length, rail configuration, cargo routine, and security expectations. Measure the inside of the bed, confirm the model year, and check whether your truck has factory utility tracks or a multifunction tailgate before comparing covers.

Match the cover to how the truck is used

Daily commuters usually value a low profile and quick access. Contractors often need stronger panels and better lock behavior. Overlanders may prefer rack-compatible retractable systems, while budget shoppers can get strong value from a soft tri-fold or roll-up cover.

The main tradeoff is access versus security

Hard folding and retractable covers offer better security but cost more. Soft covers are lighter and cheaper but less resistant to cutting. One-piece covers seal well and look clean, but they are less practical when you need to haul tall cargo.