HOT! RB Performance Brakes is a Supporting Vendor of RAM-TRX.com!

Warren-RB · Oct 11, 2023

Our initial evaluation indicates that in order to develop a "meaningful" brake kit for a downsized wheels @17", the hub OD needs to be trimmed down as illustrated below:

The OE hub OD is unnecessarily oversized which can be trimmed down to the same as Toyota Tundra 00-06 which has the same hub feature as TRX (6x M14 lug bolts 5.5" pcd) allowing to fit a well designed and effective brake kit.

1. Loosening the back 3 bolts

2. Remove the hub bearing

3. Cut the hub

4. Replace the hub and tighten the bolts

Queuedcars · Oct 11, 2023

I am 100% in for a front/rear brake upgrade that fits under factory bead lock wheels and retains OEM parking brake functionality

Warren-RB · Oct 11, 2023

This modification is necessary due to the geometry constraint for building a healthy and worthy brake kit.
For those wanting 17" brake kit, feel free to express how comfortable you are in this modification, we can help to do step #3 (machining) if required.

Warren-RB · Oct 11, 2023

Audiman44 said:
I am 100% in for a front/rear brake upgrade that fits under factory bead lock wheels and retains OEM parking brake functionality

Are your factory "bead lock" wheels 18" or 17"?

Queuedcars · Oct 11, 2023

Warren-RB said:
Are your factory "bead lock" wheels 18" or 17"?

18"

Dudebro · Oct 11, 2023

I'd be open to the modification assuming stress tests are done for strength.

I'm local by the way. So if you put together a prototype kit and want to run it on my truck for testing, I'd be happy to help. I will definitely put it through it's paces.

Warren-RB · Oct 11, 2023

Audiman44 said:
18"

Got it. We are set for 18" wheels, once the design/fitment are finalized the offer will be released.
The earlier discussions (hub modification) is for 17" wheels just to clarify.
Here is a real pic of OE hub so you can see why trimming the excessive OD can actually make the hub configuration more appropriate, save some weight too, w/o any concern.

Warren-RB · Oct 11, 2023

More brake component weight info are added, follow this post for the complete info.

HOT! - RB Performance Brakes is a Supporting Vendor of RAM-TRX.com!

Not sure about Raptor's stock wheel size, but the rotors are 350mm (vs. 330mm for 17" wheels). Front kit can be made to fit 17" but need to verify if the same 17" can fit the stock rear brake w/o issue as altering the rear rotor size will be a major challenge due to the ePB. Min. 10 kits...

www.ram-trx.com

Warren-RB · Oct 18, 2023

RB Stock replacement 2 pc rotors are up on web for per-order.

RB 2pc Rotor Kit (374/374) for RAM TRX (2019+) Stock Replacement Front & Rear (P/N 2701 & 2702)

racingbrake.com

Save 36.2 lbs or 33% (OE 111.2 vs. RB 75 lbs) on unsprung weight (see table below)
Discs are made with alloyed iron and heat-treated for the lasting durability.
Rotor hats are made of forged alloyed aluminum for higher strength and stiffness.
RB 2 pc rotors are exclusively made with center-mount design (vs. conventional surface-mount).
Rotor design and dimension are fine tuned for a "better" & "proper" sizing and fitment than OE components.

Use coupon code "PO-15" for a 15% per-order discount (Valid before the order starts shipping ETA by end December)
This is our first release for 18" stock wheels, for 17" wheels and brake kits offer are to follow.

Fifty · Nov 11, 2023

I'd be in for a kit that fits under factory 18 inch beadlocks. Ill take the extra mass vs 1\2 inch of rubber

superbike Boomer · Nov 12, 2023

Fifty said:
I'd be in for a kit that fits under factory 18 inch beadlocks. Ill take the extra mass vs 1\2 inch of rubber

Me too

Warren-RB · Dec 13, 2023

The required components shall be received next week, when we will build the actual 2 pc rotor assembly and post the weight data w/pictures.
Thank you all for the interest and patience.

superbike Boomer · Dec 13, 2023

Warren-RB said:
The required components shall be received next week, when we will build the actual 2 pc rotor assembly and post the weight data w/pictures.
Thank you all for the interest and patience.

I'm ready when you are! Let me know!

Warren-RB · Dec 22, 2023

Here are the rotors as built and their weights:

Front RB 2pc:

OE:

Rear RB 2pc:

OE:

Rotors are now ready for order with ex-stock shipment.

RB 2pc Rotor Kit (374/374) for RAM TRX (2019+) Stock Replacement Front & Rear (P/N 2701 & 2702)

racingbrake.com

Warren-RB · Dec 26, 2023

Looking for replacing OE heavy & bulky calipers?

The answer:

RB Caliper Kit for RAM TRX (2019+) Front & Rear (PN 2701K & 2702) Fits Stock 18" Wheels

racingbrake.com

Weight comparison:

OE Caliper w/pads: 26 lbs
RB Caliper w/pads: 8.9 lbs + adaptor: 1.9lbs (estd) = 10.8 lbs
Wt Saving per caliper=15.2 lbs (30.4 lbs per axle)
If also replace OE rotors with RB 2 pc rotor kit (Save 36.2 lbs)

Total wt saving: 66.6 lbs
Total saving per car: 66.6 lbs
Don't be misled by the number of pistons, we expect this track duty 4-pot caliper kit to outperform any other brake kits with more pistons.
It's a low profile caliper and fits under OE 18" wheels.

Fifty · Dec 26, 2023

Oooh.

So is there a rotor and caliper for 18” wheel?

I’m in loooooove.
Out of curiosity does this caliper fit the stock rotor as well?

Fifty · Dec 26, 2023

Hey @Warren-RB

Can you answer me two questions while I go prepare to work the streets to get these:

What is the piston sizes for these calipers? (I can calculate the total piston area unless you want to give that as well)

And then what pad shape does this caliper use? I want to see what pad material options are available and start begging the brake pad makers to make a pad for the rear. The Alcon brakes have this issue. No matching good pads for the rears!)

This is awesome !!!

(Edit: I typed rotors and meant calipers)

Warren-RB · Dec 26, 2023

Fifty said:
Hey @Warren-RB

Can you answer me two questions while I go prepare to work the streets to get these:

What is the piston sizes for these rotors? (I can calculate the total piston area unless you want to give that as well)

And then what pad shape does this caliper use? I want to see what pad material options are available and start begging the brake pad makers to make a pad for the rear. The Alcon brakes have this issue. No matching good pads for the rears!)

This is awesome !!!

The caliper set is 100% compatible with OE calipers ie. fits OE rotors except they have fixed pistons vs. OE floating pistons.
Piston sizes are 40/44mm total area: 55.54^cm2
See detailed description/dimensions for RB460 calipers:

RB460 4-Piston Caliper - 200x27.7 mm for Front (Price per each)

racingbrake.com

Brake pad (Standard FMSI pad shape, same as Dodge's Charger/Challenger/SRT8), in fact this is the most widely used brake pad among the Dodge brake family.

Search results

racingbrake.com

Unlike others our calipers use only standard FMSI (OE/Brembo) shape pads so customers have freedom to source the pad of their preference.

Warren-RB · Dec 26, 2023

Just did a quick & sketchy fitment test (w/o the adaptor). The kit seems can clear the stock 18" wheels w/o a lot of clearance as expected.
The exact clearance can be confirmed when we are able to test with the template or when the adaptors are made.

Fifty · Dec 26, 2023

Thank you for answering!

I’m glad you matched the oem piston area! That means the pedal travel, abs and traction control all stay happy!

And a better caliper just means better pedal feel, better heat shedding, and better pad material choices!!

Awesome!!!