MXA TEAM TESTED: PROX LIGHTWEIGHT WAVE-STYLE ROTORS

On Dec 12, 2019 Last updated Dec 12, 2019

WHAT IS IT? The ProX OEM lightweight replacement wave discs are made of high-grade steel. These brake rotors are great for the rider who needs to replace a bent or worn-out disc without breaking the bank.

WHAT’S IT COST? $58.50 (front or rear rotor).

CONTACT? www.pro-x.com or your local dealer.

WHAT STANDS OUT? Here’s a list of things that stand out with the ProX OEM lightweight replacement wave-style rotor.

(1) Mounting. The ProX OEM brake disc comes individually packaged. When removing the packaging, there is an adhesive that is left on the rotor that needs to be removed. Brake cleaner worked the best. We then recommend cleaning the discs with soap and water prior to installation. Give yourself plenty of room to work, such as a flat table or a workbench. We also recommend replacing the brake pads at the same time as installing the brake disc. Old brake pads can get glazed over or worn into the old disc, which may not conform properly to the new disc.

Depending on the application, the installation steps may be slightly different than detailed:

A: If building up a spare set of wheels, start off by getting the correct OEM-size replacement bolts, making sure the hub and disc areas are clean. Make sure the disc stays flush against the hub, and then put low-to-medium-strength LocTite on the bolts. Start to thread the bolts by hand to make sure they don’t get cross-threaded. After the bolts are all in the hub, make sure to tighten down each bolt evenly in rotation before tightening to torque settings.

B: If replacing a damaged disc, start off by loosening each of the bolts in rotation before removing to ensure an easy removal process. Once the bolts and disc are removed, check the hub for any damage, then clean the hub. Lay the new ProX OEM disc on the hub, making sure it sits flush on all surface areas. If previous bolts had LocTite on them, do a thorough job cleaning and checking the bolts. Once the bolts are clean, put low to medium strength Loc-Tite on the bolts. Start to thread the bolts by hand to make sure they don’t get cross-thread. After the bolts are all in the hub, make sure to tighten down each bolt evenly in rotation before tightening to torque settings.

(2) Performance. The test riders had no complaints about the ProX OEM disc performance. The wheels still spun freely without any brake-pad drag on the disc, along with your standard minimal squeak when the disc got hot. We recommend for best performance that you put the new, recommended brake pads on when installing a new rotor.

(3) Appearance. ProX did a great job designing these brake discs. The integrated venting slots allowed for proper airflow and cleaning of the brake-pad contact surface. The lightweight wave-style design gives them a high-end look at a cheaper price point.

(4) Durability. With over 30 hours and multiple races, we have no complaints about these ProX OEM brake rotors.

WHAT’S THE SQUAWK? The only complaint we had was the packaging. The tape used to hold the disc in place in the package leaves an adhesive residue in three spots that has to be cleaned up. It wasn’t the end of the world, as we clean all new discs before installing anyway.

MXA RATING: This is the best choice for the average Joe looking to replace an old or damaged rotor. The ProX replacement disc attains the same result as the OEM product at a lower price.