{"product_id":"hayes-dominion-a4-disc-brake-caliper-dbcp0130-disc-brake-calipers","title":"Hayes Dominion A4 4-Piston Disc Brake Caliper - Black, High-Performance, Durable Aluminum, Compatible with Hayes Systems, Replacement for MTB \u0026 Gravel Bikes","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eUpgrade Your Bike's Braking Performance with the Hayes Dominion A4 Replacement Disc Brake Caliper - 4-Piston, Black\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003eDesigned for serious riders seeking reliable stopping power, the Hayes Dominion A4 Replacement Disc Brake Caliper delivers high-performance braking optimized for mountain biking, downhill, enduro, and trail riding. Crafted from durable materials and engineered with advanced component technology, this 4-piston caliper ensures consistent braking performance in the most demanding conditions.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eMaterials \u0026amp; Construction\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003eMade from high-grade aluminum alloy, the Hayes Dominion A4 caliper offers excellent strength-to-weight ratio, corrosion resistance, and thermal stability. The sleek black finish adds a professional, stealthy look that complements any bike build.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003ePerformance \u0026amp; Engineering\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003eThe 4-piston design provides precise modulation and powerful, fade-free braking, even under heavy loads or prolonged descents. The caliper's optimized piston geometry ensures even pad wear and superior contact with the rotor, resulting in improved stopping power, reduced brake fade, and increased rider confidence on technical terrain.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003eComponents \u0026amp; Technology\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-8\"\u003e\u003cp\u003eIncludes bleed screw and cap for easy maintenance and bleed adjustments, ensuring optimal brake fluid management. Please note that pads are sold separately, allowing riders to choose the perfect compound for their riding style and terrain. The 74mm mount spacing guarantees compatibility with a wide range of disc brake rotors and wheel setups.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-9\"\u003e\u003cp\u003eStyle \u0026amp; Use Case\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003eFeaturing a sleek black finish and rugged construction, the Dominion A4 caliper is perfect for aggressive mountain biking disciplines-mountain, enduro, downhill, and trail riding-that demand robust braking performance. Its versatile design makes it suitable for various bike frames and setups, making it a reliable upgrade or replacement part for your brake system.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003eInnovative Features \u0026amp; Differentiators\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003e- 4-Piston Caliper for maximum stopping power and modulation\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003e- Engineered for durability and thermal management in extreme riding conditions\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003e- Easy maintenance with included bleed screw and cap\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003e- Compatibility with Hayes disc brakes and versatile mounting options\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-16\"\u003e\u003cp\u003eOptimize your bike's braking system today with the Hayes Dominion A4 Replacement Disc Brake Caliper - the perfect choice for riders who demand precision, durability, and high performance on every trail.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-17\"\u003e\u003cp\u003eNote: Pads are sold separately.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003eHigh-performance 4-piston caliper engineered for maximum stopping power and modulation, perfect for aggressive downhill and enduro riding. \u003c\/li\u003e\n\u003cli\u003eConstructed from durable, lightweight aluminum with a sleek black finish, offering excellent corrosion resistance and a clean aesthetic for all-mountain and trail bikes. \u003c\/li\u003e\n\u003cli\u003eDesigned for Hayes hydraulic disc brake systems, includes a bleed screw and pistons for easy servicing, ensuring reliable maintenance and long-lasting performance. \u003c\/li\u003e\n\u003cli\u003eMounts securely to standard 74mm post mounts, providing precise alignment and compatibility with a wide range of mountain bike frames and forks. \u003c\/li\u003e\n\u003cli\u003eOptimized for aggressive riding styles with enhanced heat dissipation and consistent braking in all conditions, making it ideal for riders demanding durability and superior control.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Hayes","offers":[{"title":"Default Title","offer_id":42353734123587,"sku":"DBCP0130","price":119.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/BR1645.jpg?v=1779331239","url":"https:\/\/365cycles.com\/products\/hayes-dominion-a4-disc-brake-caliper-dbcp0130-disc-brake-calipers","provider":"365 Cycles","version":"1.0","type":"link"}