Forged 4-Piston Caliper
Two-piece forged aluminum body keeps caliper deflection low under high line pressure, so pedal travel stays short and predictable lap after lap.
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Description
Classic 5440 Front Wheel 4-Piston Big Brake KitClassic Series Front Axle 4 Piston Classic 5440 Front 4 Piston Big Brake Kit The TTSPORT Classic 5440 is a front axle 4 piston big brake kit built for drivers who want stronger initial bite, firmer pedal feel, and repeatable stopping power under heavy or repeated use. Two piece forged aluminum calipers, staggered 38 41 mm pistons, and two piece vented iron rotors work together to raise thermal capacity and tighten modulation versus an undersized
Classic Series · Front Axle · 4-Piston
Classic 5440 Front 4-Piston Big Brake Kit
The TTSPORT Classic 5440 is a front-axle 4-piston big brake kit built for drivers who want stronger initial bite, firmer pedal feel, and repeatable stopping power under heavy or repeated use. Two-piece forged aluminum calipers, staggered 38/41 mm pistons, and two-piece vented iron rotors work together to raise thermal capacity and tighten modulation versus an undersized factory setup.
Why Builders Choose the 5440
Staggered Piston Bores
38 mm × 2 leading and 41 mm × 2 trailing pistons load the pad evenly across the rotor face, reducing taper wear and helping bite stay consistent as the pad heats up.
Two-Piece Vented Rotors
Heat-treated high-carbon iron, internally vented, in Ø330 or Ø345 mm × 28 mm. Directional left/right design with curved-slot, grain-slot, wave-slot, or drilled-and-slotted faces.
Stainless Braided Lines
PTFE inner liner, SUS304 stainless braid, PVC outer sheath. Reduces line expansion for a firmer, more linear pedal under hard braking.
Technical Specifications & Kit Options
| Brake Caliper | ||
|---|---|---|
| Series | Classic Series | |
| Model / Application | 5440 | |
| Axle Position | Front | |
| Piston Count | 4-piston | |
| Piston Type | Star-profile racing pistons, no dust boots | |
| Piston Diameter | 38 mm × 2 / 41 mm × 2 | |
| Total Piston Area | 49.1 cm² per caliper (all pistons combined) | |
| Caliper Dimensions | L 276 × W 138 × H 80 mm | |
| Manufacturing Process | Two-piece forged aluminum body | |
| Net Weight | 2.65 kg per caliper (without pads) | |
| Surface Finish | High-temperature gloss coating | |
| Recommended Wheel Size | 17 in or larger | |
| Recommended Rotor Size | Ø330–345 mm × 28 mm | |
| Brake Rotor Options | ||
| Rotor Option | 330 mm Rotor | 345 mm Rotor |
| Rotor Material | Heat-treated high-carbon cast iron | Heat-treated high-carbon cast iron |
| Axle Position | Front | Front |
| Rotor Dimensions | Ø330 mm × 28 mm | Ø345 mm × 28 mm |
| Construction | Two-piece, internally vented, fixed | Two-piece, internally vented, fixed |
| Directional Design | Yes — left/right specific | Yes — left/right specific |
| Rotor Face Pattern | Curved slot / Grain slot / Wave slot / Drilled & slotted | Curved slot / Grain slot / Wave slot / Drilled & slotted |
| Brake Pads | ||
| Compatible Rotor Material | Iron / steel rotors only | |
| Operating Temperature Range | 0–600 °C | |
| Average Friction Coefficient | 0.38 (varies with temp, line pressure, rotor condition) | |
| Lines | ||
| Brake Line Construction | Three-layer construction | |
| Brake Line Material | PTFE inner / SUS304 braid / PVC outer sheath | |
| Brake Line Fittings | Vehicle-specific; caliper-side and chassis-side vary by application | |
| Brackets | ||
| Rotor Hat Manufacturing Process | CNC-machined | |
| Rotor Hat Material | High-strength aluminum alloy | |
| Caliper Bracket Manufacturing Process | CNC-machined | |
| Caliper Bracket Material | Carbon steel | |
| Caliper Mounting Type | Radial mount with vehicle-specific brackets | |
| Fitment & Installation | ||
| Minimum Spoke Clearance | 86 mm | |
| Recommended Wheel Size | 17 in or larger | |
| Rotor Diameter Selection | 330 or 345 mm, selected according to vehicle application and wheel clearance | |
| Bedding-In Procedure | Required before hard use | |
This is a performance brake system with star-profile racing pistons and no dust boots. For daily-driven cars — especially in wet, dusty, salted, or high-debris environments — inspect and clean the caliper area more frequently as part of normal maintenance.
Package List
Calipers ×2
Two Classic 5440 forged 4-piston front calipers.
Brake Pads
Complete brake pad set for both front calipers.
Brake Rotors ×2
Two two-piece front rotors in your selected 330 mm or 345 mm size.
Caliper Brackets ×2
Two CNC carbon-steel vehicle-specific caliper mounting brackets.
Rotor Hats ×2
Two CNC-machined high-strength aluminum alloy rotor hats.
Brake Hoses ×2
Two stainless braided brake hoses with vehicle-specific fittings.
Mounting hardware is included.
Will It Fit? Your 3-Step Check
The 5440 caliper requires a minimum 86 mm spoke clearance and a 17-inch or larger wheel. Always verify spoke profile, barrel shape, and offset against the caliper envelope before purchase. Caliper brackets and brake-line fittings are vehicle-specific.
1. Wheel Diameter
17-inch or larger wheels are required.
2. Spoke Clearance
Minimum spoke clearance is 86 mm. Spoke shape and offset matter as much as diameter.
3. Vehicle Model
The 5440 is a platform-adapted big brake kit. Caliper brackets and brake-line fittings are built for your specific vehicle. Confirm fitment with our team before ordering.
Need a fitment confirmation for your vehicle and wheel? Send your year/make/model and wheel specs to our team before ordering.
Installation & Break-In
- Caliper mounting uses radial mount with vehicle-specific brackets.
- Brake-line fittings are vehicle-specific on the caliper side and chassis side.
- Forged body and stainless lines keep system compliance low, so pedal pressure tracks linearly with deceleration.
- Two-piece vented iron rotors at 28 mm thickness shed heat across repeated stops, helping resist fade on canyon, track, or towing duty.
- A proper bedding-in procedure is required before hard use.
- Inspect and clean the caliper area more frequently in wet, dusty, salted, or high-debris environments.
Frequently Asked Questions
Will the 5440 caliper fit my wheels?
The caliper requires a minimum 86 mm spoke clearance and a 17-inch or larger wheel. Spoke shape and offset matter as much as diameter — confirm with a clearance check or contact us with your wheel specs.
What rotor size should I choose, 330 mm or 345 mm?
Both run 28 mm thickness. The 345 mm rotor adds thermal mass and leverage for heavier vehicles or repeated heavy braking; the 330 mm fits more wheels and is the lighter option for lighter cars.
Are the pads street-friendly?
The included pads operate from 0–600 °C with an average μ of 0.38, so they work cold on the street and continue to perform under track or canyon use. They are compatible with iron/steel rotors only.
Why are the pistons exposed without dust boots?
Star-profile racing pistons reduce heat transfer into the caliper during repeated hard braking. The trade-off is more frequent caliper cleaning in wet, dusty, or salted environments.
Is this a direct bolt-on kit?
The 5440 is a platform-adapted big brake kit. Caliper brackets and brake-line fittings are built for your specific vehicle. Confirm fitment with our team before ordering.
Do I need to bed in the brakes?
Yes. A proper bedding-in procedure is required to transfer pad material evenly to the rotor face and establish full bite, modulation, and fade resistance.
Ready to spec your 5440 build?
Send your vehicle, wheel size, and intended use. We'll confirm caliper clearance, rotor size, and bracket availability before you check out.
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
4.8 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 4
Pretty Darn Good
Format: Kindle
So I’ve been on a omega kick and this definitely hit the spot. Madison was frustrating at times with how she acted towards Lucas, Gray, and Rian. It was like she said towards the end, she didn’t believe she deserved nice things.
It would have been nice to hear from her best friends again. They kind of were there in the beginning and the gone except for mention of text messages received from them. I feel like her friends would have been great help in encouraging Madison to go with the pack and never give Brent another chance because he was toxic.
I loved Rian. His personality was awesome. His humor. His ability to make Madison comfortable whenever she was feeling overwhelmed. And the fact he fell for her and she fell for him first. They are cute together.
I do feel like Lucas was the odd man out though. Like Lucas didn’t develop as much of a relationship with Madison. I would have really liked to see more development in the relationship between them. It was also the same with him and Rian. There is really no relationship displayed. Most of the relationship being displayed is between Rian and Gray.
Nevertheless, I loved reading about the dynamic that came to fruition during the entirety of this story. Madison finally got her happiness. And Brent finally got punched in the face. Everyone got exactly what they deserve.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 6, 2022
★★★★★ 3
Pack's Promise was okay but not great
Format: Kindle
Pack's Promise was okay but not great. I won't recommend it to anyone that I know.
PRO:
* Very likable characters
* Lots of steamy scenes that are written very well
* The spelling and grammar are good
* The punctuation is good with the exception of using hyphens instead of commas. Lots of hyphens. Lots and lots of hyphens.
CON:
* Almost no interactions with any characters outside of Madison and the pack
* Nearly no plot. They meet, get together for a heat, agree to make it permanent, done
* Quite a few typos such as extraneous words, missing words and words out of order
THINGS TO KNOW:
* More steamy scenes than storytelling
* A lot of MM & MMM, some MFMM during heat
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2023
★★★★★ 5
such a good read
Format: Kindle
Madison, Lucas, Grey and Rian were made for each other!!! First time reading from this author and I’m not disappointed!!! Absolutely love the Love in this book and couldn’t ask for a better OV!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 25, 2023
★★★★★ 4
Fluffy and Nice Omegaverse
Format: Kindle
… this would have made 5 stars but for 2 reasons.
A.) there were quite a few typos; misspelled words, missing quotations, “the his” mistakes, and various signs that maybe a proofread would do good.
B.) the writing was quite textbook. Late blooming omega is struggling with her new self, finds a absurdly wealthy pack of alphas, every thing is almost insta-love but she resists, then decides to love herself and let everyone be happy.
Rian was my favourite (obviously the author’s favourite too because he got the most page time) but I wish we could see more of his CEO side? He went to work maybe ONCE the entire time. Gray was supposed to be the “growly one” but he turned out to be puppy dog. Lucas was a genius brainiac doctor - but also super alpha with an aggressive hindbrain with a breeding k*nk?? And then there was no actual “breeding”??
Spice 3/5 - normally omegaverse books are super high on messy smut but this was tamer.
Romance 3/5 - insta-love that was then resisted because of personal hangup’s
Plot 2/5 - weird paced head hopping, showing the same scene from different POV’s that made me feel like it was 2 steps backward, 1 step forward.
Humour 4/5 - there were a dozen lines that genuinely made me chuckle out loud
Would have been five stars but the lack of proofreading and the predictable plot made me unable to get up to ADORED IT level - four stars is still and official ENJOYED IT, y’all. This isn’t a bad rating. The “Club Heat” has intriguing possibilities so I’m going to give the second one a shot.
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Reviewed in the United States on March 31, 2023
★★★★★ 5
Great book
Format: Kindle
I absolutely feel in love with all 4 characters!!! The bedroom scenes were 🌋🌡🔥🔥🔥. I couldn't put this book down!!! I'm hooked for the whole series Book 2 here I come!!!!! Its a fun easy book and story to read!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 4, 2024