Direct-Mount Front Fitment
Vehicle-specific direct-mount front configuration for Ford Bronco (U725) and Ford Bronco Raptor (U725) applications.
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Description
2021-2026 Ford Bronco & 2022-2026 Bronco Raptor PB6 Direct-Mount Front Big Brake KitDirect Mount Series Front Axle 6 Piston 2021 2026 Ford Bronco & 2022 2026 Bronco Raptor PB6 Direct Mount Front Big Brake Kit The TTSPORT PB6 is a Direct Mount Series front big brake kit engineered for the Ford Bronco (U725) and Ford Bronco Raptor (U725). It pairs a 6 piston forged aluminum caliper with 340 mm 34 mm internally vented one piece high carbon iron rotors, stainless steel braided brake lines, and vehicle specific fittings for stronger front
Direct-Mount Series · Front Axle · 6-Piston
2021-2026 Ford Bronco & 2022-2026 Bronco Raptor PB6 Direct-Mount Front Big Brake Kit
The TTSPORT PB6 is a Direct-Mount Series front big brake kit engineered for the Ford Bronco (U725) and Ford Bronco Raptor (U725). It pairs a 6-piston forged aluminum caliper with Ø340 mm × 34 mm internally vented one-piece high-carbon iron rotors, stainless-steel braided brake lines, and vehicle-specific fittings for stronger front-axle braking under larger tires, armor, trail use, towing, and repeated downhill braking.
Why Ford Bronco & Bronco Raptor Builders Choose the PB6
The U725 Bronco platform is often modified with 35–37 in tires, steel bumpers, recovery gear, roof loads, and trail equipment. The PB6 adds front-axle piston area, rotor mass, and stainless-braided line response while keeping the installation vehicle-specific and direct-mount.
6-Piston Forged Caliper
Two-piece forged aluminum caliper with 28 mm × 2 / 34 mm × 2 / 40 mm × 2 racing pistons.
55.6 cm² Piston Area
55.6 cm² total piston area per caliper helps deliver controlled front-axle clamp force for heavier Bronco builds.
Ø340 mm × 34 mm One-Piece Rotor
Heat-treated high-carbon cast-iron rotor, internally vented, fixed, directional left/right specific, with curved slot / Grain Slot face pattern.
97 mm Spoke Clearance
Recommended for 17 in or larger wheels with at least 97 mm minimum spoke clearance.
Racing Piston Service Note
PB6 uses racing pistons without dust boots. After mud, sand, deep water, or salted-road driving, inspect and clean the piston area as part of normal maintenance.
PB6 Direct-Mount Technical Specifications & Kit Options
| Brake Caliper | |
|---|---|
| Series | Direct-Mount Series |
| Model / Application | PB6 |
| Axle Position | Front |
| Piston Count | 6-piston |
| Piston Type | Racing pistons without dust boots |
| Piston Diameter | 28 mm × 2 / 34 mm × 2 / 40 mm × 2 |
| Caliper Dimensions | L 280 mm × W 169 mm × H 79 mm |
| Total Piston Area | 55.6 cm² per caliper, all pistons combined |
| Manufacturing Process | Two-piece forged aluminum body |
| Net Weight | 3.44 kg per caliper, without pads |
| Surface Finish | High-temperature gloss coating |
| Recommended Wheel Size | 17 in or larger |
| Recommended Rotor Size | Ø340 mm × 34 mm |
| Brake Rotor | |
| Rotor Material | Heat-treated high-carbon cast iron |
| Axle Position | Front |
| Rotor Dimensions for This Application | Ø340 mm × 34 mm |
| Construction | One-piece rotor |
| Ventilation | Internally vented |
| Rotor Mounting | Fixed |
| Directional Design | Yes — left/right specific |
| Rotor Face Pattern | Curved slot / Grain Slot |
| Brake Pads | |
| Compatible Rotor Material | Iron / steel rotors only |
| Operating Temperature Range | 0–600 °C |
| Average Friction Coefficient | Average μ: 0.38; variation depends on temperature, line pressure, and rotor condition |
| Lines | |
| Brake Line Construction | Three-layer reinforced construction |
| Brake Line Material | PTFE inner liner / SUS304 stainless-steel braid / PVC protective outer sheath |
| Brake Line Fittings | Vehicle-specific fittings; caliper-side and chassis-side fittings vary by application |
| Vehicle Application & Rotor Mapping | |
| 2021-2026 Ford Bronco (U725) | Front · Ø340 mm × 34 mm |
| 2022-2026 Ford Bronco Raptor (U725) | Front · Ø340 mm × 34 mm |
| Fitment & Installation | |
| Primary Vehicle Application | 2021-2026 Ford Bronco (U725) · 2022-2026 Ford Bronco Raptor (U725) |
| Model Years | Ford Bronco: 2021-2026 · Ford Bronco Raptor: 2022-2026 |
| Axle | Front |
| Caliper Mounting Type | Direct mount |
| Minimum Wheel Size | 17 in or larger |
| Minimum Spoke Clearance | 97 mm |
| Brake Line Fitting Type | Vehicle-specific fittings; caliper-side and chassis-side fittings vary by application |
| Order Verification | Confirm VIN, trim, model year, front brake hardware, wheel diameter, offset, spoke clearance, and brake-line fitting style before ordering |
| Bedding-In Procedure | Required |
For Ford Bronco (U725) and Bronco Raptor (U725), the correct PB6 front rotor specification is Ø340 mm × 34 mm. Confirm 17 in or larger wheels, 97 mm minimum spoke clearance, trim, and brake-line fitting compatibility before ordering.
What’s Included in the PB6 Direct-Mount Kit
Calipers ×2
2 × PB6 6-piston forged aluminum front calipers, left/right specific.
Brake Pads
Brake pads for both front calipers, rated 0–600 °C and intended for iron / steel rotors.
Brake Rotors ×2
2 × Ø340 mm × 34 mm one-piece front rotors, internally vented, curved slot / Grain Slot, and left/right specific.
Brake Hoses ×2
2 × three-layer stainless-steel braided brake lines with PTFE inner liner, SUS304 braid, PVC protective outer sheath, and vehicle-specific fittings.
Mounting Hardware
Vehicle-specific direct-mount hardware for Ford Bronco / Bronco Raptor U725 front-axle installation.
PB6 is a Direct-Mount front kit. Caliper brackets and rotor hats are not used on this configuration.
Will It Fit Your Ford Bronco or Bronco Raptor?
PB6 requires 17 in or larger wheels with at least 97 mm of spoke clearance. Wheel diameter alone is not enough; spoke shape, offset, spacer use, and inner barrel profile must be checked before ordering.
1. Wheel Diameter
17 in or larger wheels are required.
2. Spoke Clearance
Minimum spoke clearance: 97 mm. Check spoke shape, offset, spacer use, and inner barrel profile before ordering.
3. Vehicle Model
Applications: 2021-2026 Ford Bronco (U725) and 2022-2026 Ford Bronco Raptor (U725), front axle, with Ø340 mm × 34 mm rotor specification.
Send your VIN, trim, model year, front brake hardware photos, wheel specs, and use case before ordering so TTSPORT can confirm compatibility.
Installation & Bedding for Ford Bronco & Bronco Raptor
- This PB6 kit is engineered for the front axle of Ford Bronco (U725) and Ford Bronco Raptor (U725).
- The correct front rotor specification is Ø340 mm × 34 mm with a one-piece internally vented rotor.
- Direct-Mount Series uses vehicle-specific front mounting geometry and vehicle-specific brake-line fittings.
- Brake-line fittings vary by application; confirm model year, trim, and front brake hardware before ordering.
- Confirm 17 in or larger wheels and 97 mm minimum spoke clearance before ordering.
- Install left/right specific rotors on the correct side for proper venting and curved-slot / Grain Slot orientation.
- PB6 uses racing pistons without dust boots. After mud, sand, deep water, or salted-road driving, inspect and clean the piston area as part of normal maintenance.
- A proper bedding-in procedure is required to transfer pad material evenly to the rotor face and stabilize friction performance.
- Professional installation by a qualified brake technician is recommended.
Ford Bronco & Bronco Raptor PB6 Front Big Brake Kit FAQ
Will this PB6 kit fit my Ford Bronco or Bronco Raptor?
Yes. This PB6 Direct-Mount front kit is configured for 2021-2026 Ford Bronco (U725) and 2022-2026 Ford Bronco Raptor (U725). The correct front rotor specification is Ø340 mm × 34 mm.
What axle and rotor size does this PB6 kit use?
This is a front-axle kit using Ø340 mm × 34 mm one-piece, internally vented, directional front rotors with a curved slot / Grain Slot face pattern.
What wheel size and spoke clearance are required?
17 in or larger wheels are required, with at least 97 mm minimum spoke clearance to the front caliper. Wheel diameter alone is not enough; spoke shape, offset, spacer use, and inner barrel profile must be checked before ordering.
Does this kit use caliper brackets or rotor hats?
No. This is a Direct-Mount Series PB6 application with direct-mount front calipers and one-piece front rotors. Caliper brackets and rotor hats are not used on this configuration.
Are the PB6 pistons dust-booted?
No. PB6 uses racing pistons without dust boots. After mud, sand, deep water, or salted-road driving, inspect and clean the piston area as part of normal maintenance.
Can I reuse the factory hydraulic system and ABS?
Yes. This PB6 kit is designed to work with the factory hydraulic system and ABS on supported Ford Bronco and Bronco Raptor U725 front-axle applications. Professional installation and full system bleeding are required.
Are the included pads street-friendly?
Yes. The included pads operate from 0–600 °C with an average μ of 0.38, suitable for street driving, towing, trail use, and loaded off-road builds on iron or steel rotors.
Do I need to bed the brakes in?
Yes. A proper bedding-in procedure is required to transfer pad material evenly to the rotor face and reach stable braking performance.
Ready to spec your PB6 Bronco or Bronco Raptor front brake build?
Need front fitment confirmation, wheel clearance review, or trim verification for your Bronco U725 build?
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 1570 reviews
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Product Reviews
★★★★★ 5
Solid, powerful, rechargeable
Color: Black
Very impressed with its weight, speed and performance. The dial is great
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Reviewed in the United States on May 29, 2026
★★★★★ 4
Very nearly the perfect frother for all your basic frothing & mixing needs
Color: Black
There are a lot of middle-of-the-road frothers out there. I've been through a few of them in my recent search for something that could mix and froth well, without taking up any more outlets in my basement kitchen. Of the three Maestri frothers I've tried so far, this one wins the race by a nose.
Most recently, these Maestri frothers come in basically three versions: A single-speed @ 8000 RPM, a two-speed @8000/5500 RPM, and this stepless variable-speed version. Aside from that, the only real difference in recent version pack-outs is which attachments they come with.
Look over the reviews of the single-speed version and you'll find that while it can and does froth well, it starts at a single, high speed and gets there fast. This makes it pretty easy to spin liquid right out of most common cups and mugs.
There is a two-speed version, but it's harder to find, only comes in one color (Grape Purple), and while it's much better than the Maestri single-speed, it still has a couple of quirks that make this variable-speed version win out.
This mixes and froths whole milk, half-and-half, or heavy whipping cream, or just about anything else very well. Like all frothers, it takes a little time to learn its nuances and nail down the technique, this will definitely get you there.
The best feature of this is easily the speed control. Turn the knob to turn it on at a low speed that's great to get things started, then turn the knob to crank up the speed just enough to do what you need, whether that's mixing or frothing. The low starting speed makes it easy to keep things under control without undue spilling, and the max speed is more than enough to make quick work of getting your froth on.
There are really only two complaints I have with this stepless, variable speed version:
- I'd really like to have a Press On / Release Off button in addition to the Speed Control knob. More than one time have I gone to turn this off, only to spin the knob the wrong way and crank the speed up to ludicrous, sloshing liquid on the counter. Being able to turn it Off just by letting go of the button would be quick and easy. This configuration would allow using a preferred speed right from the start, while still allowing speed to be adjusted on-the-fly when needed.
- Give it a bigger battery. It would cost mere pennies to give this a 2000mAH+ instead of a 1200mAH battery, and I can't think of any reasonable downside to that.
- Give the motor a little more torque. It's fairly easy for the current motor, at any speed, to get bogged down in a thick protein powder mix, or when pressing the frother or other attachment a bit too hard into the bottom or side of the frothing container. A bit more "oomph" would prevent that.
I really like the overall design and features of thes Maestri frothers better than many other, cheaper versions. This variable-speed version is pretty great as it is and probably the one I would recommend over the single- or two-speed, for most people. But I often find myself using two hands -- one to hold it steady, and the other to turn it on and tweak the knob to the desired speed(s) -- for a device that should arguably need only one hand to use. Just a couple of minor tweaks as noted above would make this the overall best frother of its type that I've used.
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Reviewed in the United States on May 23, 2025
★★★★★ 5
Hands down, the BEST handheld frother I've ever used!
Color: Black
Hands down, the BEST handheld frother I've ever used! I got the black one, but any color will have the same results.
Over the past 12 years or so, I've used so many different handheld frothers and they've ALL fallen short of expectations for quality, longevity, power, features, and usability.
I've used everything from cheap, $15 models to $50+ models and everything in-between. Some with fancy attachments for various types of mixing, frothing, beating, whipping, etc. Some with rechargeable batteries, some without. Some AC powered, some with fixed whisks, some with detachable/replaceable whisks, some with stands, etc. NONE have been spectacular. Most broke within 6 months and got tossed. ALL were major disappointments in the end, including the "revered" Zulay models of which I tried several.
I finally found this Maestri House branded, variable speed frother with detachable / replaceable whisks and got one to try. I was literally on Cloud Nine the first time I turned it on. Like, WOW! Not only was it FAST on the highest speed, but it was powerful enough to churn right through milk, eggs, cream, etc, without bogging down like many others.
This thing makes milk froth like a milkshake and Matcha Lattes like nothing else I've ever experienced. I used to have to sift my Matcha, then whisk it in hot water, then froth milk and then blend them together to make the perfect latte. and if the milk was cold (my preference), pre-whisking in hot water was a must to avoid lumps. However, with THIS frother? I literally pour my milk into a tall tumbler, drop in un-sifted Matcha powder, and spin up the Maestri House frother at first on a medium low speed to get it mixed, then jump straight to the highest speed to really whip that milk and match up. After about 30-45 seconds, I've got the thickest, richest, smoothest, most aerated latte around. And NO LUMPS at all!!! What a time and dish saver!
And cleaning? I just run it under hot running water to get the shaft cleaned and then spin it up in a dish with hot running water for a few moments, then spin it on high for a few seconds in the air to dry it off instantly.
Now, I'll be honest here, too. The specs say it can go months on a charge, using it for a couple minutes a couple times daily. Well, I guess it could do that and still spin. But I use it FULL SPEED, churning hard for at least a minute a couple times per day. After about 2 weeks, I can start to notice a speed reduction so I just plug it back in on the charger. All things considered, this is still better than all the other handheld frothers I've used over the years.
After using the heck out of this thing for the past 7 months, I've even decided to start selling these in our Japanese gift shop. The manufacturer is has been very responsive both in customer support (I called them about an issue I thought I was having, and they called me back with a couple hours even though I didn't leave voicemail when they didn't answer right away) and in reseller support. I have to give these guys an A+ for responsiveness and quick resolution when problems might arise.
HIGHLY recommended!!
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Reviewed in the United States on October 17, 2025
★★★★★ 5
Great Addition!
Color: Black
Why did you pick this product vs others?:
I just started a powdered drink routine recently and was having a difficult time mixing it with water. I would consistently end up with small nuggets of mix making it unenjoyable to drink. I knew I needed a mixer and was glad I found this device when I did. It works perfectly! I like the fact that it comes with its own stand and included two mixing heads. It is solid, well-designed, and you can feel the quality when you pick it up. The variable speed of the mixer is perfect for ensuring that everything is blended well. I haven’t used it to “froth” anything yet, at least not on purpose, but I accidentally found out that it can do that well. This is a great addition to our kitchen and is very easy to wash after use. So far…no issues. Highly recommend for those of you looking for the right tool to make sure those protein mixes aren’t full of unmixed nuggets.
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Reviewed in the United States on June 21, 2025
★★★★★ 4
Low foam
Color: Black
Love this frother. It is great quality and the turn speed is amazing. My only issue is this. It comes w 2 wands and they are both singles. The single is great for stirring things up. It does not make a lot of froth and for some things it’s perfect but sometimes I like a lot of froth and I wish it either came w a single and a double or you could purchase a double separately to intermix. I don’t want to buy a whole other unit just for the double. I wrote to them bc the double frother they sell doesn’t look as good as this one but sometimes a girl needs a lot of foam and sometimes th stirring is perfect.
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Reviewed in the United States on February 20, 2026