
StopTech Rotor Hardware Kit
STOPTECH The StopTech Rotor Hardware Kit: The Foundation of a Flawless Brake Job A brake job is only as solid as the components holding it together. The StopTech Rotor Hardware
Shop premium StopTech performance brakes including slotted rotors, big brake kits, ST40/ST60 calipers, stainless steel brake lines, and sport brake pads. Upgrade your vehicle’s stopping power with genuine StopTech components.
Alex logs 45 miles a day on the I-405 in his 2019 Honda Civic Si. Stock rubber lines always left his brake pedal feeling vague, especially in sudden stop-and-go traffic. After installing the StopTech Stainless Steel Braided Brake Line Kit, the difference was immediate. The firmer, more direct pedal response cut through the commute’s chaos, delivering consistent feedback every time he needed it. It’s a single-point upgrade that made his daily drive feel more controlled and connected.
StopTech’s cryogenic treatment process subjects rotors to temperatures below -300°F, fundamentally altering the steel’s microstructure for enhanced durability and wear resistance.
StopTech ST-40 Big Brake Kit – 6-Piston Front Calipers, Slotted 2-Piece Rotors, Performance Pads & Stainless Lines
StopTech Forged Aluminum Performance Brake Calipers – 4-Piston Monoblock Design, Red Powder-Coated Finish (Pair)
StopTech Sport Slotted 1-Piece Rotors – Zinc-Plated, Precision Machined for Improved Cooling & Bite (Front Pair)
Unleash your vehicle’s true braking potential with StopTech’s legendary performance lineup. From daily drivers to dedicated track machines, StopTech engineers every component to deliver race-derived technology, unmatched durability, and confidence-inspiring stopping power for enthusiasts who demand the very best from every pedal press.
Choose StopTech brake rotors, slotted rotors, or the rotor hardware kit for noticeable gains in heat management and pad bite. Precision-machined surfaces and premium metallurgy reduce fade during aggressive driving, while the hardware kit ensures secure, rattle-free mounting with corrosion-resistant fasteners built for long-term reliability.
StopTech calipers, including the ST-40, ST-41, ST-60, and forged brake calipers, deliver stiffness and clamping force that unlock serious performance. Paired with the ST-60 hardware kit for easy rebuilds, these forged multi-piston units bring race-proven engineering and striking looks to nearly any performance vehicle on the market.
Match your rotors with StopTech brake pads or StopTech Sport Pads for serious bite and controlled modulation. Formulated for street-friendly manners with track-ready confidence, these pads minimize noise, dust, and fade while extending rotor life — perfect for spirited drivers who want refinement without giving up aggressive stopping power.
Before ‘big brake kits’ became a searchable term, StopTech was engineering them. The company launched in 1999 with a singular focus: building high-performance brake systems that gave drivers measurable control over their vehicles. That first year, a set of its forged calipers and 2-piece rotors went from a Huntington Beach garage to a track-day staple.
StopTech founded with a mission to bring balanced brake upgrades to the performance aftermarket.
Secured a patent for the AeroRotor design, establishing a new standard for rotor cooling efficiency.
Brake systems endure the punishing conditions of desert racing, proving durability beyond street applications.
Celebrated 20 years with over 100,000 brake kits installed across North American vehicles.
StopTech’s Balanced Brake Upgrade philosophy ensures every component works in concert, delivering predictable, linear performance from daily driving to the edge of adhesion.
Calipers, rotors, and pads are selected as a matched system for your specific vehicle’s weight distribution. This prevents the common upgrade mistake of over-powering the front brakes, which can destabilize the chassis during hard stops and lead to premature rear lockup.
Patented 2-piece AeroRotors feature a 6061-T6 aluminum hat that manages heat transfer, resisting fade during repeated high-energy stops like those encountered on a canyon road or entering Turn 1 at Laguna Seca.
Stainless steel braided lines reduce volumetric expansion by over 30% compared to OE rubber hoses. This translates a consistent 40-pound pedal force into precise caliper piston actuation, lap after lap.
A forged aluminum 4-piston caliper and a 2-piece rotor assembly can save up to 8 pounds per corner versus a heavy cast-iron upgrade. This reduction improves suspension response and steering precision, especially in mid-corner corrections.
Each StopTech series pairs our patented 2-piece AeroRotors with a distinct engineering priority—from daily-driver quiet to track-day endurance—so you can match the brake system to exactly how and where you drive.
Aggregated feedback from 2,341 verified buyers across major automotive parts retailers and enthusiast forums.
Choosing between slotted and drilled brake rotors depends on your driving habits. This section clarifies the differences to help you pick the right StopTech rotor for your needs.
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StopTech Sport Slotted Brake Rotors have channels cut into the surface to wipe away gas and debris, while the Select Sport Drilled and Slotted Brake Rotor adds holes for additional heat venting. Slotted rotors generally resist cracking better under hard use.
Yes, the drilled holes in rotors like the Select Sport Drilled and Slotted model can create stress points that may develop cracks with repeated heavy braking or track use. Purely slotted designs, such as the Sport Slotted rotors, are engineered for greater resistance to this type of failure.
For a mix of spirited street driving and occasional track use, StopTech Sport Slotted Brake Rotors are a strong choice. They manage heat well and are less susceptible to the cracking that can affect drilled patterns under sustained high temperatures.
The drilled and slotted pattern can sometimes produce a slightly more audible ‘swooshing’ sound compared to plain or slotted rotors as the holes and slots pass the pad. This noise is typically minimal and not a concern for most drivers.
Choose Sport Slotted rotors for maximum durability and a focus on consistent bite, especially if you drive aggressively. The Select Sport Drilled and Slotted model is a solid option for enhanced initial bite and heat evacuation in less demanding, primarily street-performance applications.
It depends on the specific pad. Their Street Performance pads are optimized for low dust and noise on the street and may fade under aggressive track use. For serious track duty, their Sport or dedicated track pads are recommended.

STOPTECH The StopTech Rotor Hardware Kit: The Foundation of a Flawless Brake Job A brake job is only as solid as the components holding it together. The StopTech Rotor Hardware

23 YEARS OF BRAKE ENGINEERING StopTech Brake Pads: Engineered to Win Born from two decades of motorsport development, StopTech brake pads bring track-proven stopping authority to your daily drive. Every

MATERIAL SCIENCE StopTech Brake Lines: The Science Behind Consistent Pedal Feel The core of every StopTech brake line is a seamless PTFE inner tube. This fluoropolymer delivers near-zero fluid absorption