Light weight 2 piece rotor f/r

[nikhsub1]

Do those fit under 17's?

 

[Truckzor]

Some but not all. Mine will be going under 17" Weld Rekons.

I am told they will also fit some of the Method 17" wheels like the NV.

 

[WarrenRB]

Do you know only RacingBrake's center mount design (US Patented) can make two piece stock replacement for F150 and Why?

Wt: 20.5 lbs (estd) vs. OE 28.6 lbs - Save 8.1 lbs per rotor or 16.2 lbs per axle.

 

[Raptor911]

Huh? What are you talking about?

Do you know only RacingBrake's center mount design (US Patented) can make two piece stock replacement for F150 and Why?

Wt: 20.5 lbs (estd) vs. OE 28.6 lbs - Save 8.1 lbs per rotor or 16.2 lbs per axle.

 

[EricM]

that is a significant weight saving where it matters the most.

Well, actually no. Where weight savings matters most in relation to angular momentum is the very furthest outer edge of the tire. Weight saving means less and less the closer you get to the center of the rotating object. Given the majority of the weight saved with these rotors is in the hat, which is basically right in the center of the wheel, when it comes to angular momentum- the difference (% wise compared to the overall system) is pretty much jack shit. There are some slight advantages to the reduced unsprung weight when it comes to the ride however.

 

[WarrenRB]

The moment of inertia, otherwise known as the angular mass or rotational inertia, of a rigid body is a tensor that determines the torque needed for a desired angular acceleration about a rotational axis; similar to how mass determines the force needed for a desired acceleration. It depends on the body's mass distribution and the axis chosen...Wikipedia

Weight saving (8.1 lbs/rotor) is strictly comparing to OE 1pc rotor, nothing else.

 

[EricM]

What is your point in that post?

 

[WarrenRB]

Making light weight two piece rotor for F150 was our first attempt for truck application recently, and we wonder why no brake company makes this available since 2009 until now.

We first tried conventional surface mount design for a lower cost set up, then discovered the reason why; because with surface mount it's not possible to clear the bracket as showing in the pictures below.






However RB center mount design hat can set the mounting flange and hardware below the rotor surface and therefore can avoid the interference w/bracket like surface mount two piece.

We are just sharing this finding with F150 owners and let you know replacement two piece rotors can be made available, and the advantage of a light weight two piece rotors can make your F150 more responsive in acceleration as well as deceleration.

Other than the weight advantage of a 2pc piece rotor, due to the center hat is a lighter weight aluminum (than iron hat), so it increases the distance of torque arm further out from the rotational axis, so the overall MOI benefit is more than just the weight reduction.

 

[EricM]

Other than the weight advantage of a 2pc piece rotor, due to the center hat is a lighter weight aluminum (than iron hat), so it increases the distance of torque arm further out from the rotational axis, so the overall MOI benefit is more than just the weight reduction.

Yea, that marketing talk was what I was discussing above. No one will ever feel any difference from lightweight rotor hats on truck with 100+ lb wheel and tire packages.

Just say it man- these rotors are for looking pimpy and showing your neighbors and internet friends that you have MORE MONEY than they do. There's nothing wrong with that- people are free to spend their money however they want.

 

[WarrenRB]

OE one piece

RB two piece stock replacement

RB Center mount (US patented) design is the only two piece rotor that can clear OE bracket
- Not the conventional surface mount design -