VTT F3X Ultimate Rear Drag Brake Conversion Kit

VTT ultimate F3X ultimate rear brake conversion kit

 VTT is happy to announce its new rear brake conversion kits for the F3X platforms. This is the FIRST and only kit currently on the market that will allow 15″ wheels and tires to be run on the rear. This kit replaces your rear brake rotors and calipers to fit 15″ wheels. It includes lightweight VTT calipers to go from the single-piston factory caliper to race-inspired 4-piston calipers. At the same time, dropping up to a whopping 20 LBS of unsprung weight off the back of your vehicle!

 The kit consists of:

• 2 Rotors (Plain Or Slotted) Plain are Centric 125 Series, and Slotted are Genuine Stop-Tech rotors
• VTT 4 Piston calipers
• 1 set of high-performance VTT Pads in Street or Track spec. (option to remove the pads, and get your own compound pads)
• All hardware required for the swap, including brackets. bolts, and adapter fittings
• Stainless Steel Lines

These kits will bolt directly onto the chassis specified. IT WILL NOT DIRECTLY BOLT ON TO ANY OTHER PLATFORM. INCLUDING BUT NOT LIMITED TO F2X, YOU MAY BUY THIS KIT, AND MAKE IT FIT THOSE PLATFORMS WITH A FEW CHANGES, BUT THIS IS A DIRECT BOLT ON KIT FOR THE F3X PLATFORMS ONLY!  As for wheel fitment, any different 15” wheels in many different offsets exist, we cannot guarantee this will clear your wheel/tire combo without some clearance. We can 100% say they clear Weld RTS 15×10 as this is what we tested on.

Please note modifications MUST be made to the vehicle to fit this kit. You must remove the rear brake dust shield, and also grind one small casting from the suspension arm.

Conversion weight numbers:

Calipers with pads

Factory Rear Caliper 11.5LBS

VTT calipers  4.5LBS

Savings of 7-7.5 lbs. per side or 14-15LBS total from Factory Rear brakes to VTT 15” conversion

Brake Rotors

Factory Size Rotor 18.2LBS

Slotted 15” conversion rotor 13.5LBS

Plain 15” conversion rotor 14.4LBS

Savings of 4.7Lbs per side or 9.4 Lbs. total going from a factory rotor to 15” conversion Slotted Rotor

Savings of .9 LBS going cross-drilled 15” conversion over plain

Total savings

Factory rear brakes – 56LBS

VTT 15″ Plain Rotor VTT caliper 37.3-37.8 Lbs. – Savings 18.2-18.7 Lbs.