Parts/Drivetrain/Drivetrain hardware (hex hubs, pins)/RC4WD Baer Brake Rotors & Caliper Set for Traxxas UDR (2)
RC4WD Baer Brake Rotors & Caliper Set for Traxxas UDR (2)
RC4WD

RC4WD Baer Brake Rotors & Caliper Set for Traxxas UDR (2)

Part # RC4ZS19522.3(4)
Where to buy
$35.99
AMain Hobbies
Seen Oct 12, 2026
$35.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

This is an optional RC4WD Traxxas Unlimited Desert Racer Baer Brake Rotors & Caliper Set, intended for use with the Traxxas Unlimited Desert Racer as a lightweight detail accessory. This Rotor and Caliper Set has been Officially Licensed by the Baer Brake company. These parts are CNC machined out of billet aluminum and anodized black, red and silver for added style. 

Features:
  • Billet Aluminum
  • CNC Machined
  • Black/Red/Silver Anodized Finish 
Specifications:
Brake Disc Diameter: 1.69in/43.0mm
Hex: 0.67in/17.0mm
Total Weight: 0.93oz/26.5g

 

Includes:

  • (2) Brake Discs
  • (2) Red Calipers
  • (1) Baer Decal Sheet

Reviews2.3 · 4 reviews

Aaron RiversVerified owneron RC4WD Baer Brake Rotors & Caliper Set for Traxxas UDR (2)

The only reason this is not a one star review is because they look really good. Parts do not fit well. Calipers hole does not lineup with the stock axle carriers. I will have the remove material from the inside of the caliper to get the holes to line up on all 4 corners. Also the rotors pin slot is so deep that an extra 2mm of the unthreaded stub axle protrudes beyond the hex hub. This does not happen with the stock plastic rotors. I will most likely need to add a bushing shim between the bearing in the axle carrier and the RC4WD rotor to get it to line up the same as stock. Overall I am happy with the looks, but extremely unhappy with the fit of these.

2 found this helpful
Andrew RVerified owneron RC4WD Baer Brake Rotors & Caliper Set for Traxxas UDR (2)

china made junk! First problem holes did not come threaded had to use a tap and make my own threads. Second problem fronts do not fit deep enough into steering knuckle (you must remove material from the caliper). Third problem set had 2 of the same rotors so one side cooling vents face forward other side is backwards. Bear should be ashamed to endorse this product.

1 found this helpful
Fielraymond C de la Cruzon RC4WD Baer Brake Rotors & Caliper Set for Traxxas UDR (2)

have no problem installing this part in my UDR and i like the looks and finish.

AnonymousVerified owneron RC4WD Baer Brake Rotors & Caliper Set for Traxxas UDR (2)

DO NOT ORDER. They look cool but the calipers are not threaded. This is junk.

What reviewers say

Reviewers agree the rotors and calipers look good and finish well, but fit is the main complaint. Two reviewers report caliper mounting holes that do not line up with stock axle carriers or require material removal, and one reports the front parts do not seat deep enough in the steering knuckle. One reviewer says the caliper holes were not threaded and had to be tapped by hand, and another makes the same threading complaint. One reviewer reports a mixed pair of rotors with cooling vents facing opposite directions. One reviewer reports installing the set without problems and praises the appearance. Overall, reviews are mixed, with most negative reports centred on fit and hardware preparation.

  • + Good looks and finish
  • + Installs without issues for one owner
  • − Caliper holes misaligned with stock carriers
  • − Caliper holes not threaded
  • − Front parts do not seat deep enough
  • − Rotor pin slot too deep, stub axle protrudes
Summary generated from the reviews above.

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