Wilwood 140-17734 NDPR Rear Brake Kit for UTV, compatible with Polaris RZR.

NDPR Rear Race UTV Brake Kits

Wilwood’s NDPR rear UTV front and rear brake kits for popular off-road vehicles feature dynamic-mount rotors and improved calipers. These kits combine higher clamping force fixed-mount multi-piston calipers with larger diameter floating rotors for increased brake torque, upgrading braking on high-powered UTVs. Forged aluminum four-piston calipers reduce deflection and provide more even engagement for increased braking force and improved feel. High-friction steel rotors are up to 20% larger in diameter and are thicker for less warpage. Dynamic mount rotors reduce thermal stress and prevent piston knock-back over uneven terrain. Kit Summary

Spindle Type:

Mount Type:

Radial

Caliper Type:

4 - Type III Anodize

Rotor Diameter:

11.25

Minimum Wheel Diameter Required*:

14

Calipers

Left - Part Number:

120-17783

Right - Part Number:

120-17783

Type:

NDPR

Finish Color:

Type III Anodize

Number of Pistons:

4

Piston 1 Diameter (in):

1.25

Piston 2 Diameter (in):

1.25

Piston 3 Diameter (in):

0
Piston Area (in²):

2.46

Piston Type:

Stainless

Mount Type:

Radial

Brake Pad Plate:

7812

Brake Pad Area (in²):

6.36

Brake Pad Volume (in³):
2.1

Pad Compound:

BP-28

Rotors

Left - Part Number:

160-16515

Right - Part Number:

160-16515

Type:
Drilled Steel Rotor

Style:
Smooth Surface

Surface Finish:
Black E-coat

Material:
Steel

Outside Diameter (in):

11.25

Width (in):

0.25

Number of Vanes:

Solid

Design Type:

Solid

Seated:

No

Dynamically Balanced:

No

Rotor Hat

Hat - Part Number:

170-17745

Type:
Dynamic Lug Drive Large Brake - Short Offset

Material:
Aluminum

Finish Color:

Type III Anodize

Hat Offset Dimension (in):

0.730

Bolt Circle 1:

5 x 4.50

Bolt Circle 2:

Bolt Circle 3:

Bolt Diameter - BC 1:

0.520

Bolt Diameter - BC 2:

0.000

Bolt Diameter - BC 3:

0.000