Slim 8-Piston Architecture
Narrow caliper body (128 mm wide) helps preserve wheel clearance while running a true monobloc-style 8-pot design.
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Slim Series · Front Axle · 8-Piston
The TTSPORT Slim SL8 is an 8-piston front big brake kit built around a narrow two-piece forged aluminum caliper. It pairs a staggered 28/32 mm piston layout with two-piece 380–405 mm rotors to deliver high thermal capacity, firm pedal modulation, and repeatable stops behind 19 in or larger wheels.
Narrow caliper body (128 mm wide) helps preserve wheel clearance while running a true monobloc-style 8-pot design.
28 mm × 4 leading and 32 mm × 4 trailing pistons spread clamp load evenly across the pad for stable bite and reduced taper wear.
Higher stiffness-to-weight than cast calipers; 5.20 kg per caliper without pads.
One-piece heat-insulated pistons with dust boots limit fluid heat soak during back-to-back stops and protect seals from grit.
Internally vented, left/right directional, with iron/steel or carbon-ceramic options for street and track-day duty.
| Brake Caliper | ||
|---|---|---|
| Series | Slim Series | |
| Model / Application | SL8 | |
| Axle Position | Front | |
| Piston Count | 8-piston | |
| Piston Type | One-piece heat-insulated pistons with dust boots | |
| Piston Diameter | 28 mm × 4 / 32 mm × 4 | |
| Total Piston Area | 56.8 cm² per caliper (all pistons combined) | |
| Caliper Dimensions | L 391 mm × W 128 mm × H 144 mm | |
| Manufacturing Process | Two-piece forged aluminum body | |
| Net Weight | 5.20 kg per caliper, without pads | |
| Surface Finish | High-temperature gloss coating | |
| Recommended Wheel Size | 19 in or larger | |
| Recommended Rotor Size | Ø380–405 mm × 34 mm | |
| Brake Rotor Options | ||
| Rotor Option | Iron / Steel Rotor | Carbon-Ceramic Rotor |
| Rotor Material | Heat-treated high-carbon cast iron | Carbon-ceramic composite |
| Axle Position | Front | Front |
| Rotor Dimensions | Ø380 / 405 mm × 34 mm | Ø380 / 405 mm × 34 mm |
| Construction | Two-piece assembly | Two-piece assembly |
| Ventilation | Internally vented | Internally vented |
| Rotor Mounting | Fixed or floating, size/application dependent | Floating |
| Directional Design | Yes — left/right specific | Yes — left/right specific |
| Rotor Face Pattern | Curved slot / Grain slot / Wave slot / Drilled-and-slotted | Cross-drilled |
| Brake Pad Options | ||
| Pad Option | For Iron / Steel Rotors | For Carbon-Ceramic Rotors |
| Compatible Rotor Material | Iron / steel only | Carbon-ceramic only |
| Operating Temperature Range | 0–600 °C | 0–700 °C |
| Average Friction Coefficient | μ ≈ 0.38 | μ ≈ 0.45 |
| Lines | ||
| Brake Line Construction | Three-layer construction | |
| Brake Line Material | PTFE inner liner / SUS304 stainless braid / PVC protective outer sheath | |
| Brake Line Function | Reduces line expansion under pressure for a firmer pedal | |
| Brake Line Fittings | Vehicle-specific on both caliper and chassis sides | |
| 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 | 90 mm | |
| Recommended Wheel Size | 19 in or larger | |
| Rotor Diameter Selection | 380 or 405 mm, selected according to vehicle application and wheel clearance | |
| Bedding-In Procedure | Required before normal use | |
Iron/steel rotors suit aggressive street and track-day use. Carbon-ceramic rotors reduce unsprung mass and resist fade in extended high-temperature work. Friction values vary with temperature, line pressure, and rotor condition. Pad and rotor materials must be matched — never run iron-rotor pads on a carbon-ceramic disc.
Two SL8 8-piston front calipers.
Matched brake pads for both front calipers.
Two-piece rotors in your selected size and material.
CNC-machined carbon steel brackets sized for radial-mount installation on the matched chassis.
CNC-machined high-strength aluminum alloy rotor hats.
Stainless-steel braided brake lines with vehicle-specific fittings.
Wheel fitment is not universal. Always verify spoke clearance, caliper window depth, and wheel offset against the supplied caliper dimensions (391 × 128 × 144 mm) before ordering. Send wheel specs and your vehicle details to our team for a clearance check.
19 in or larger wheels are required.
The SL8 requires a minimum 90 mm spoke clearance.
The SL8 is a platform-adapted big brake kit. Confirm your year, make, model, and wheel specs with our team so we can ship the correct bracket and line set.
19 in or larger wheels are required, with a minimum 90 mm spoke clearance. The slim 128 mm caliper width helps, but every wheel design is different — verify clearance before ordering.
Smaller leading pistons and larger trailing pistons spread clamp force more evenly across the pad. This reduces tapered pad wear and gives more linear pedal modulation under repeated braking.
Iron/steel rotors offer strong bite, excellent value, and hold up to aggressive street and track-day use. Carbon-ceramic rotors cut unsprung weight, resist fade longer at extreme temperatures, and last significantly longer — at a higher price point.
The SL8 is a platform-adapted big brake kit. Calipers, brackets, and brake-line fittings are matched to your specific vehicle. Confirm your year, make, model, and wheel specs with our team so we can ship the correct bracket and line set.
Pads are matched to your rotor choice. Iron/steel rotors use a 0–600 °C pad with μ ≈ 0.38. Carbon-ceramic rotors use a CCB-specific pad rated 0–700 °C with μ ≈ 0.45. Pad and rotor materials must always be matched.
Yes. A proper bedding-in procedure is required to deposit an even pad transfer layer on the rotor face. Skipping it can cause uneven friction, vibration, and reduced bite.
Send your vehicle, wheel specs, and rotor preference. We'll confirm clearance and the correct bracket/line set before the kit ships.
Brake Kits · Fitment · Installation · Care Guide
A brake kit is not just a pair of larger calipers. Calipers, rotors, pads, hoses, brackets, rotor hats, mounting hardware, brake fluid, wheel clearance, and bedding procedure all work together as one system.
This guide explains how to confirm the right TTSPORT brake kit before ordering, what to check before installation, and how to care for the system after installation.
Do not order a brake kit by vehicle name alone. The correct kit depends on the vehicle, axle position, wheel package, driving use, and brake system layout.
Brake kits are application-specific. A visually similar kit can still have the wrong rotor offset, bracket geometry, hose fitting, caliper position, or wheel clearance requirement.
Different TTSPORT brake kit series use different hardware layouts. Always confirm what the kit includes before purchase.
Use direct-mount calipers and one-piece rotors where specified. These kits do not use rotor hats or caliper brackets unless the final product page clearly states otherwise.
Use separate friction rings and rotor hats. Hat offset, ring bolt pattern, hardware style, and rotor direction must be matched correctly.
May require bespoke brackets, rotor hats, brake lines, and engineering confirmation based on knuckle, hub, wheel, and competition use.
Require extra attention to wheel clearance, tire size, vehicle load, descent control, hose routing, and dust / water exposure.
Do not assume every brake kit includes the same parts. Package contents vary by product series, vehicle application, and final order configuration.
Before finalizing the order, review the kit specification carefully. Confirm the brake kit is matched to your vehicle and wheel setup, not only to the model name.
If any part is not listed in the final order or product page, do not assume it is included.
Inspect every component before installation. Do not modify, grind, drill, stretch, force, or space brake kit components to make them fit.
Safety: Brake kits affect braking force, hydraulic sealing, heat control, wheel clearance, and vehicle stability. Do not install the kit if fitment, torque, direction, clearance, or compatibility is unclear.
Correct installation is as important as the brake kit itself. A properly engineered kit can still perform poorly if installed with dirty mounting faces, incorrect torque, poor hose routing, or trapped air in the hydraulic system.
Verify caliper centering over the rotor and confirm even pad sweep across the friction surface.
Confirm left / right rotor direction if the rotor uses directional vanes or directional face pattern.
Check brake hose length and routing at full steering lock and full suspension travel. No twisting, rubbing, stretching, or kinking.
Check caliper-to-spoke and caliper-to-barrel clearance before road use. Wheel diameter alone is not enough.
Use the correct brake fluid type and bleed the system until pedal feel is firm and consistent.
Torque all brake hardware to the specified value. Do not reuse damaged, unknown, stretched, or corroded safety-critical fasteners.
Brake pads and rotors need a controlled bedding process before full performance is available. Bedding helps create an even transfer layer on the rotor surface, improving bite, pedal consistency, and vibration resistance.
Street pads, race pads, iron rotors, two-piece rotors, and carbon ceramic rotors may require different bedding procedures. Use the procedure supplied with the specific kit.
After installation and bedding, give the system a short break-in period before aggressive use. Pedal feel, pad contact, dust output, and noise may continue to settle after the first drives.
Brake kits need regular inspection, especially after track use, off-road use, towing, mountain driving, winter salt exposure, or any brake service.
Inspect pads, rotors, fluid level, and hose condition during normal service intervals. Prioritize quiet operation, smooth pedal feel, and even wear.
Check pad thickness, rotor surface condition, and fluid condition more often. Long descents create sustained heat even without track use.
Inspect for mud, sand, stone impact, hose abrasion, dust boot damage, and caliper contamination after trail use.
Inspect pads, rotors, fluid, and hardware before and after every event. Track heat shortens service intervals.
Check rear brake temperature, hydraulic handbrake behavior, pad wear, rotor cracking, and hardware condition frequently.
Use only compatible pads and approved bedding procedures. Inspect rotor surface condition carefully and avoid incompatible friction materials.
Do not continue driving if the brake system shows any of the following symptoms. Inspect the system or contact a qualified brake technician before using the vehicle again.
Send your vehicle details, brake kit series, wheel specs, driving use, photos, and any symptoms you notice. TTSPORT will help confirm fitment, installation checks, and the correct care path for your brake kit.
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