TC6R calipers are purpose built to provide unsurpassed braking capacity on trucks and SUVs upgraded to larger than stock wheels. TC6R kits can fit many 20and larger wheels (Verify your wheel interior clearance to the wheel clearance diagram in the installation instructions before purchase). Combining the high clamping efficiency of the TC6R caliper with 16 diameter directional vane rotors and high friction BP-10 compound brake pads, TC6R kits provide the braking power necessary to control the higher rotating weight of ultra-sized wheels and tires, especially with high GVW vehicles and vehicles used for towing. TC6R kits are engineer application to be fully compatible with the OE master cylinder output and retain full function of the ABS system.