Monoblock Forged Caliper
Single-piece forged aluminum body resists flex under sustained high line pressure, keeping pad knock-back and pedal travel predictable lap after lap.
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Description
Circuit Racing TR65 Front Wheel 6-Piston Big Brake KitRacing Series Circuit Front Axle 6 Piston TR65 Front 6 Piston Racing Big Brake Kit The TR65 is a front axle racing big brake kit built for circuit, time attack, drift, rally, and endurance use. A monoblock forged 6 piston caliper, two piece floating rotors, race pad options, and braided lines give builders a rigid foundation to engineer around the car's brake balance, wheel package, and intended pad window. Racing Series Circuit Front Axle 6 Piston
Racing Series · Circuit · Front Axle · 6-Piston
TR65 Front 6-Piston Racing Big Brake Kit
The TR65 is a front-axle racing big brake kit built for circuit, time attack, drift, rally, and endurance use. A monoblock forged 6-piston caliper, two-piece floating rotors, race pad options, and braided lines give builders a rigid foundation to engineer around the car's brake balance, wheel package, and intended pad window.
Racing Series — Circuit
Front Axle
6-Piston Monoblock
Ø355 / 378 / 390 mm
18 in Wheel Min.
Track / Competition
Why Builders Choose the TR65
The TR65 is built for competition cars that need stable front brake torque, repeatable pedal feel, and serviceable hardware across circuit, drift, rally, time attack, and endurance use. Rotor diameter, pad compound, line fittings, and bracket geometry are matched to the vehicle, wheel package, and use case before the kit ships.
Staggered 6-Piston Bore
27 / 32 / 38 mm pistons distribute clamp load evenly across the pad face for consistent wear, stable μ, and clean release off the pedal.
Two-Piece Floating Rotors
Heat-treated high-carbon iron friction rings on aluminum hats. Replaceable rings cut long-term running cost on heavy track programs.
Race Pad Window
Standard Track Pad runs 0–600 °C with μ ≈ 0.38; Racing Pad Option B runs 0–750 °C with μ ≈ 0.45.
Vehicle-Specific Engineering
Rotor diameter, pad compound, line fittings, and bracket geometry are matched to the vehicle, wheel, and use case before the kit ships.
Competition Service Logic
Racing pistons without dust boots require regular inspection, cleaning, and seal service for track, drift, rally, and closed-course use.
Technical Specifications & Kit Options
| Brake Caliper | |||
|---|---|---|---|
| Series | Racing Series — Circuit | ||
| Model / Application | TR65 | ||
| Axle Position | Front | ||
| Piston Count | 6-piston | ||
| Piston Type | Racing pistons, no dust boots | ||
| Piston Diameter | 27 mm × 2 / 32 mm × 2 / 38 mm × 2 | ||
| Total Piston Area | 50.10 cm² per caliper, all pistons combined | ||
| Caliper Dimensions | 292 mm × 182.3 mm × 79.3 mm | ||
| Construction | Monoblock forged aluminum body | ||
| Net Weight | 3.05 kg per caliper, without pads | ||
| Surface Finish | Nickel-plated | ||
| Recommended Wheel Size | 18 in or larger | ||
| Recommended Rotor Size | Ø355–390 mm × 36 mm | ||
| Caliper Mounting | Radial mount with vehicle-specific caliper brackets | ||
| Brake Rotor Options | |||
| Rotor Diameter | 355 mm | 378 mm | 390 mm |
| Rotor Material | Heat-treated high-carbon cast iron or Racing Steel Option B | Heat-treated high-carbon cast iron or Racing Steel Option B | Heat-treated high-carbon cast iron or Racing Steel Option B |
| Axle Position | Front | Front | Front |
| Rotor Dimensions | Ø355 mm × 36 mm | Ø378 mm × 36 mm | Ø390 mm × 36 mm |
| Construction | Two-piece rotor assembly | Two-piece rotor assembly | Two-piece rotor assembly |
| Ventilation | Internally vented | Internally vented | Internally vented |
| Rotor Hats | Application-specific alloy rotor hats | Application-specific alloy rotor hats | Application-specific alloy rotor hats |
| Mounting Style | Fixed or floating, size / vehicle dependent | Fixed or floating, size / vehicle dependent | Fixed or floating, size / vehicle dependent |
| Directional Design | Yes — left/right specific | Yes — left/right specific | Yes — left/right specific |
| Face Pattern | Curved slot / Grain Slot / Wave Slot / Drilled-slotted; Option B: Wave Slot | Curved slot / Grain Slot / Wave Slot / Drilled-slotted; Option B: Wave Slot | Curved slot / Grain Slot / Wave Slot / Drilled-slotted; Option B: Wave Slot |
| Recommended Use | Lighter cars or tighter wheel packages | Balanced choice for club track and time attack | Maximum torque and thermal mass for long sessions and heavy cars |
| Brake Pad Options | |||
| Pad Option | Standard Track Pad | Racing Pad Option B | |
| Compatible Rotor | Iron / steel rotors only | Iron / steel rotors only | |
| Operating Temperature | 0–600 °C | 0–750 °C | |
| Average Friction Coefficient | μ ≈ 0.38 | μ ≈ 0.45 | |
| Recommended Use | Club track, time attack, and lower sustained heat demand | Endurance, heavy braking zones, and higher sustained temperature use | |
| Lines, Brackets & Service | |||
| Brake Line Construction | Three-layer construction | ||
| Brake Line Material | PTFE inner liner / SUS304 stainless braid / PVC protective sheath | ||
| Caliper Brackets | Vehicle-specific radial-mount caliper brackets, CNC-machined per vehicle hub geometry | ||
| Rotor Hats | Application-specific alloy rotor hats matched to front hub location and rotor offset | ||
| Brake Line Fittings | Caliper-side and chassis-side fittings are vehicle-specific | ||
| Wheel Clearance | 18 in or larger wheel required; final clearance depends on spoke profile, offset, rotor diameter, and bracket package | ||
| Competition Use Notice | Racing pistons without dust boots require regular inspection, cleaning, and seal service | ||
| Bedding-In Procedure | Required before hard use to set transfer film and seat the pad | ||
Larger rotor diameter increases torque and thermal mass but requires sufficient wheel clearance. Confirm wheel spoke geometry before selecting Ø378 or Ø390 mm. μ varies with temperature, line pressure, and rotor condition.
Package List
Calipers ×2
2 × TR65 front monoblock forged 6-piston calipers with nickel-plated finish.
Brake Pads
Brake pads for both front calipers, selected from Standard Track Pad 0–600 °C or Racing Pad Option B 0–750 °C compound.
Brake Rotors ×2
2 × two-piece internally vented front rotors, selected from Ø355 / 378 / 390 mm × 36 mm, left/right specific.
Caliper Brackets ×2
Vehicle-specific radial-mount caliper brackets for correct front caliper position and alignment.
Rotor Hats ×2
Application-specific alloy rotor hats matched to front hub location and rotor offset.
Brake Hoses ×2
Three-layer stainless-steel braided front brake lines with PTFE inner liner, SUS304 stainless braid, and PVC protective sheath.
The Bespoke Engineering Process
Every TR65 front racing system is engineered around the vehicle’s front knuckle, hub location, rotor hat offset, wheel barrel, spoke clearance, brake line routing, front brake bias target, rear brake pairing, wheel package, tire package, and intended motorsport use. The goal is not a generic universal fit; the goal is a front brake package that works with your chassis geometry and gives the driver repeatable pedal behavior under sustained track, drift, rally, or endurance use.
1. Technical Consultation
We review the chassis, front suspension and knuckle setup, wheel size, wheel offset, tire package, intended use, rear brake pairing, pad window, competition use, and whether the car uses OEM or custom front uprights.
2. Data Submission
For OEM knuckles, provide vehicle, year, hub spec, wheel data, and intended use. For custom uprights, motorsport hub conversions, or non-OE rotor offsets, provide CAD files, drawings, hub-face data, rotor mounting dimensions, or accurate bracket mounting-point measurements.
3. Engineering Review & Approval
TTSPORT confirms rotor diameter, bracket geometry, rotor hat offset, brake-line fittings, pad compound, wheel clearance, and bedding requirements before production begins.
If you are unsure whether your wheel, front knuckle, rotor offset, rear brake pairing, pad window, or brake line routing is suitable, Contact us before ordering so the engineering team can review the build details.
Installation & Break-In
- Every TR65 kit ships with vehicle-specific radial-mount caliper brackets and matched brake-line fittings.
- Rotor diameter, pad compound, line fittings, and bracket geometry are confirmed according to vehicle, wheel, and use case before shipping.
- Pick the largest diameter your wheel clears; bigger rotors add torque and thermal mass for long sessions and heavy cars.
- Choose 355 mm for lighter cars or tighter wheel packages.
- Choose 378 or 390 mm when higher thermal capacity is required and wheel clearance allows.
- TR65 calipers use racing pistons without dust boots and require regular inspection, cleaning, and seal service.
- Bedding-in procedure is required before hard use to set transfer film and seat the pad.
Frequently Asked Questions
Is the TR65 street legal?
The TR65 is a competition-focused front BBK with race pistons and no dust boots. It is intended for track, drift, rally, and closed-course use. Street use is at the owner's discretion and requires accepting more frequent service.
Which rotor size should I pick — 355, 378, or 390 mm?
Pick the largest diameter your wheel clears. Bigger rotors add torque and thermal mass for long sessions and heavy cars; 355 mm suits lighter cars or tighter wheel packages.
What is the difference between the standard and racing pad?
The standard pad runs 0–600 °C with μ ≈ 0.38 — a good window for club track and time attack. The racing pad runs 0–750 °C with μ ≈ 0.45 — more bite and heat capacity for endurance and heavy braking zones.
What wheel size do I need?
18 in or larger. Final clearance depends on wheel spoke profile and offset, especially with the 378 and 390 mm rotors. Send a wheel spec or template before ordering.
Are the rotors directional?
Yes. Both the standard and racing rotors are left/right specific to optimize vane pumping and cooling airflow. Install per the marked side.
How is fitment confirmed for my car?
Provide vehicle, year, hub spec, and wheel data. TTSPORT builds the bracket geometry and brake-line fittings around your car. Contact the team with your build details to start.
Spec your TR65 build
Tell us the car, the wheel, and how you'll use it. TTSPORT will confirm rotor size, bracket geometry, pad compound, rotor hat offset, and line fittings before the kit ships.
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
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★★★★★ 4
Great product
Color: Purple, Color: Purple
My dogs loved these toys. Durable and apparently very coveted as my puppers “argued” over who got each one. Kept them playing and chewing for hours. Giving only 4 stars instead because I Wish the size was bigger because I have found that sometimes I don’t see it and stepping on it is Absolutely NO FUN.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Rottweiler approved
Color: Purple
My Rottweiler puppies love these bones. I feel good about letting them play with these and not worry they will break or that they can choke because they are durable and a good size and weight. I like the variety and can put peanut butter on the crevices if I want to give as a treat. Worth the money!
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Reviewed in the United States on June 7, 2026
★★★★★ 5
Durable, lightweight, dogs love em
Color: Purple
The most durable, perfect weight,all 3 dogs have the best time chewing them. Easy to unpack and carry around. All 3 dogs enjoy, this is my 2nd time purchasing in a year, they last about 6 months per purchase time
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Perfect for the aggressive chewer
Color: Purple
I purchased these because I have a 1-year-old black lab redbone coonhound mix who destroys every toy and Bone. I have gotten him in a short amount of time... These things have outstanded this little guy and he is still enjoying them!
Keeps him occupied and satisfies his chewing for hours!
And he leaves my shoes alone haha
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Reviewed in the United States on June 10, 2026
★★★★★ 5
Best for all chewers!
Color: Purple, Color: Purple
I purchased in February and waited until ive had them long enough to make a justified review. I have a very VERY aggressive chewer. He destroys every toy he gets within minutes or a hour. We didnt expect much out of these but why not. Let me tell you... they only have small teeth dents. No cracks, no breaks, no chunks missing, none in the trash, no bleeding gums... nothing. My chewer loves them. First day he just stared at them like they were alien objects but after we played fetch a few times it was on!! Now all three dogs chewer on them. I would say im purchasing again but I dont know when that will be lol I highly recommend to anyone!! Photo is taken today 6/4/26
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Reviewed in the United States on June 4, 2026