Search: 120-1646



Product Groups found: 1

XRZ4R Radial Mount

Wilwood’s next-generation XRZero race calipers combine decades of race experience, computer finite element analysis (FEA), and state-of-the-art machining into a race caliper that is lighter and stiffer, with zero drag. The unique shape of the high surface area body creates a caliper with superior brake fluid cooling and allows more airflow through the rotor. Optimized profile high-temperature seals provide better piston retraction resulting in less drag. The unique center X-bridge strengthens the caliper body without adding mass or obstructing airflow to the brake rotor or pads. Computer FEA design and precision CNC machining of the stress-flow forged aluminum body results in a caliper weighing just 4.66 pounds - 1/2 pound less than a comparable sized Wilwood Superlite caliper.

Ordering Information for XRZ4R Radial Mount
*New* Details
CALIPER,XRZ4R,ST,1.88/1.75,1.25 ROTOR R/H,ANO
Anodize
$863.94
Call (805) 388-1188
*New* Details
CALIPER,XRZ4R,ST,1.88/1.75,1.25 ROTOR L/H,ANO
Anodize
$863.94
Call (805) 388-1188
*New* Details
CALIPER,XRZ4R,ST,1.88/1.75,.810 ROTOR R/H,ANO
Anodize
$863.94
Call (805) 388-1188
*New* Details
CALIPER,XRZ4R,ST,1.88/1.75,.810 ROTOR L/H,ANO
Anodize
$863.94
Call (805) 388-1188
*New* Details
CALIPER,XRZ4R,ST,1.50/1.50,1.25 ROTOR ANO
Anodize
$863.94
Call (805) 388-1188
*New* Details
CALIPER,XRZ4R,ST,1.50/1.50,.810 ROTOR ANO
Anodize
$863.94
Call (805) 388-1188
*New* Details
CALIPER,XRZ4R,ST,1.38/1.38,1.25 ROTOR ANO
Anodize
$863.94
Call (805) 388-1188
*New* Details
CALIPER,XRZ4R,ST,1.38/1.38,.810 ROTOR ANO
Anodize
$863.94
Call (805) 388-1188



PDFs found: 2

Decades of motorsports engineering experience, lengthy computer finite element analysis, and over a year of testing in professional competition have created Wilwood’s advanced XRZero four piston race calipers. Internally optimized for zero drag with special profile piston seals to deliver greater piston and pad retraction.

XRZero NEXT GENERATION ZERO DRAG RACE CALIPERS


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Version: 3.04 May 22, 2023
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