Light weight 2 piece rotor f/r

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ChevyChad

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You must be new to the aftermarket parts game.

WTF is that supposed to mean? Not all vendors are like this. In fact, most are not. And no, I've been buying aftermarket parts for over 20 years.
 

WarrenRB

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Warren, just want to confirm, this kit:

RB Calipers & Iron Rotor Brake Kit for Ford 09-17 F-150/Raptor (2570 & 2571)

This works with 17" wheels but the larger (380mm) rotors will not?

350mm rotor kit usually require 18" wheels, which can even be tight if a 6 pot caliper is used, so a 4 pot caliper may be needed instead of 6 pot. 17" wheels can generally fit only 330mm rotor kit.

The only set up that is certain in terms of wheel fitment is the stock replacement rotors (350/348) under OE calipers and wheels.

Proposed aluminum caliper kits either add on (to stock rotor) as upgrade, or BBK (larger than stock size) are tentative until we have a consensus of what F150 owners are looking for, and their preferred wheel sizes.
 

nikhsub1

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350mm rotor kit usually require 18" wheels, which can even be tight if a 6 pot caliper is used, so a 4 pot caliper may be needed instead of 6 pot. 17" wheels can generally fit only 330mm rotor kit.

The only set up that is certain in terms of wheel fitment is the stock replacement rotors (350/348) under OE calipers and wheels.

Proposed aluminum caliper kits either add on (to stock rotor) as upgrade, or BBK (larger than stock size) are tentative until we have a consensus of what F150 owners are looking for, and their preferred wheel sizes.

Well, it is also certain the R1 concepts 6 piston front, 4 piston rear fits under 17" wheels. The other certainty is that Alcon has a 6 piston front, 4 piston rear kit that not only fits 17's but also fits the OEM 17's... so it can be done, you just need to work harder :D

I think you will find that most Raptor owners with to keep with 17" wheels, myself included. I think you would also find you would sell a ton of kits if yours fit under 17's as well.
 

Truckzor

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WTF is that supposed to mean? Not all vendors are like this. In fact, most are not. And no, I've been buying aftermarket parts for over 20 years.

Please correct me if I'm wrong but I don't see Alcon, Baer, Brembo or R1 posting the weights of their Raptor kits and yet you're arguing with these guys over significant digits.

350mm rotor kit usually require 18" wheels, which can even be tight if a 6 pot caliper is used, so a 4 pot caliper may be needed instead of 6 pot. 17" wheels can generally fit only 330mm rotor kit.

The only set up that is certain in terms of wheel fitment is the stock replacement rotors (350/348) under OE calipers and wheels.

Proposed aluminum caliper kits either add on (to stock rotor) as upgrade, or BBK (larger than stock size) are tentative until we have a consensus of what F150 owners are looking for, and their preferred wheel sizes.

Well, it is also certain the R1 concepts 6 piston front, 4 piston rear fits under 17" wheels. The other certainty is that Alcon has a 6 piston front, 4 piston rear kit that not only fits 17's but also fits the OEM 17's... so it can be done, you just need to work harder :D

I think you will find that most Raptor owners with to keep with 17" wheels, myself included. I think you would also find you would sell a ton of kits if yours fit under 17's as well.

Warren, I agree with nikshub1, most Raptor owners want to stick with 17" wheels and there are already good brake kits out there for those who are willing to increase wheel diameter (Brembo, for example).

Here are some examples of stuff that's already out there for 17" wheels...

https://www.rpgoffroad.com/product/14-inch-rpg-front-brake-system/

Alcon Brake Upgrade for Ford F-150 Raptor - Alcon Alcon - Specialist Brakes and Clutches

I really like the look of your stuff and I am inclined to give it a go but I don't love the idea of downsizing my rotors. My truck is going back into the shop for a Gen 3 whipple rotor upgrade soon. Would love to be able to get the brakes done at the same time.
 

WarrenRB

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Please correct me if I'm wrong but I don't see Alcon, Baer, Brembo or R1 posting the weights of their Raptor kits and yet you're arguing with these guys over significant digits.





Warren, I agree with nikshub1, most Raptor owners want to stick with 17" wheels and there are already good brake kits out there for those who are willing to increase wheel diameter (Brembo, for example).

Here are some examples of stuff that's already out there for 17" wheels...

https://www.rpgoffroad.com/product/14-inch-rpg-front-brake-system/

Alcon Brake Upgrade for Ford F-150 Raptor - Alcon Alcon - Specialist Brakes and Clutches

I really like the look of your stuff and I am inclined to give it a go but I don't love the idea of downsizing my rotors. My truck is going back into the shop for a Gen 3 whipple rotor upgrade soon. Would love to be able to get the brakes done at the same time.

Comment-Strictly from their ads.

Baer 6 Pot front kit:
355x32 $2,999. Their pad (C5/C6 D731) is smaller than our 4 pot (D1149-Dodge Challenger)

Known Wheel Fitments for 17 inch wheels:

• Weld Rekon, 17″
• BTR G2 17″
• Method NV 17″
• Method Mesh 17″​

No mention their kit fits under stock 17"

Alcon 6/4 kit:
Front: 347x36; Rear 360x32
  • Picture shows 1pc rotors, not two piece
  • No price
  • No pad specified (heavy duty?)
  • Caliper body is made of Ductile iron - Same as OE caliper material, better strength than aluminum but they must be heavy, it may even be heavier than OE.
  • No weight published.
Low profile design fits inside OEM 17" Raptor, many 17" and larger aftermarket wheels

Marketing claim is very different from engineering practice, I have yet to see a 14" aluminum brake kit installed under a 17" stock OE wheel.

RB is the only brake company makes true light weight two piece rear rotors that retains OE emergency brake, and our brake kit offer always contains Front and Rear like for GT350 and Focus RS.

One member contacted us for front 380mm big rotor kit, he said he can fabricate an adapter for OE calipers to adopt to 380mm big rotor, rear will be RB 2pc stock size or RB 380x26.

He assured me that 380mm rotor kit w/OE caliper can fit under his 18" wheels. So we are revising our BBK offer to 380/380 (down from 390/390) which has a better chance to fit 19" wheels, also can reduce the variety of our offer.

Would this 380mm kit, OE calipers 18" or RB calipers 19" be something of interest to you.
 

Truckzor

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Would this 380mm kit, OE calipers 18" or RB calipers 19" be something of interest to you.

Good info in your response. Appreciated.

I am unfortunately stuck on the idea of running 17" wheels. I am willing to switch to aftermarket 17s, though, including those Weld Rekons that work with the RPG/Baer kit.
 

WarrenRB

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Good info in your response. Appreciated.

I am unfortunately stuck on the idea of running 17" wheels. I am willing to switch to aftermarket 17s, though, including those Weld Rekons that work with the RPG/Baer kit.

Can you send me the link of their (Bear or Alcon) wheel fitment template so I can verify their claims - Or their representative/agent can confirm the same.

Objective data is what I am looking for and believe, I can safely say if they can there is no reason why we can't.
 

WarrenRB

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Thank you for your confidence and support.

Upon browsing the other thread, I don't seem to see any conclusive evidence that an aluminum caliper kit has ever installed under stock 17" - only some pics.

Although it could be possible that F150 stock wheels are made more spacious than 'regular' OE 17".

I found two styles of factory F150 17" wheels from eBay.

ory_stock_6979dac51e2bb684b27b8ff07204a20602a2d467.png

wheel_2_d4f502e3232f11ba96855f455cc93c0d367129f4.png

Your input as to which one (top or bottom) would be helpful for us to identify the right 17" wheels and confirm the size of a brake kit can fit.

Thank you.
 
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