{"product_id":"brembo-220b47330","title":"Brembo Radial CNC GP4-RB 30\/34 Two-Piece Brake Caliper Kit 100mm – Part No. 220B47330","description":"\u003cp\u003eMachined from high-grade aluminium on a CNC mill and assembled to Brembo's exacting race tolerances, the GP4-RB 100mm radial caliper kit represents the pinnacle of Italian braking engineering. The two-piece bolted construction and asymmetric 30\/34 mm four-piston layout deliver even pressure distribution across the pad face, giving serious racers the feedback and raw stopping power that circuit work demands.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eTwo-piece CNC-machined aluminium body: exceptional rigidity with minimal mass, purpose-built for racing and track day use.\u003c\/li\u003e\n\u003cli\u003eFour-piston configuration (2x 30 mm and 2x 34 mm) for progressive, precisely metered braking force throughout the lever stroke.\u003c\/li\u003e\n\u003cli\u003eDual-sealed pistons engineered for sustained performance under the extreme heat cycles of competitive racing.\u003c\/li\u003e\n\u003cli\u003eAnti-vibration pad spring included, reducing brake pad chatter and maintaining consistent pad contact at all times.\u003c\/li\u003e\n\u003cli\u003eCompatible with DOT 4 and DOT 5.1 brake fluid — no system modifications required for most race-prepared machines.\u003c\/li\u003e\n\u003cli\u003eComplete kit supplied with high-performance sintered brake pads (part no. 07BB1973) ready for immediate fitment.\u003c\/li\u003e\n\u003cli\u003eFor racing use only — not road-legal or type-approved for public road use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Materials\u003c\/h2\u003e\u003cp\u003eThe GP4-RB body is produced from aerospace-grade aluminium using multi-axis CNC milling, a process that allows Brembo's engineers to remove material exactly where it is not needed while preserving wall thickness precisely where structural loads are highest. The resulting caliper is both lighter and stiffer than a conventionally machined or cast unit, which translates directly into a firmer, more consistent lever feel as brake temperatures climb. The two-piece bolted design allows each half to be inspected, serviced, or replaced independently — a practical advantage in a race environment where downtime costs lap times.\u003c\/p\u003e\u003cp\u003eEach piston bore is machined to tight tolerances and fitted with dual seals. This arrangement maintains a stable fluid column even as the caliper flexes under hard braking loads, ensuring the modulation the rider feels at the lever is a true reflection of what is happening at the rotor — not hydraulic slop introduced by seal deflection.\u003c\/p\u003e\u003ch2\u003eOn Track Performance\u003c\/h2\u003e\u003cp\u003eThe asymmetric 30\/34 mm piston arrangement is a deliberate design choice. The smaller leading pistons build pressure progressively, while the larger trailing pistons maximise clamp force at peak deceleration. Combined with the 100 mm radial mount pitch, this geometry suits the high-mount master cylinders fitted to modern superbikes and delivers a straight, consistent pull from the first application of a race session to the last. Offset of 22.5 mm positions the caliper correctly relative to the fork leg, keeping the hydraulic line routing clean and the torque path efficient.\u003c\/p\u003e\u003ch2\u003eCompatible Spare Parts and Accessories\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePin set: part no. 20394230\u003c\/li\u003e\n\u003cli\u003eRetaining pin split pin: part no. 05454218\u003c\/li\u003e\n\u003cli\u003ePad retaining spring: part no. 20225590\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eDesigned for use with brake rotors of approximately 35 mm rotor ring width. Maximum rotor thickness 6 mm; optimum operating thickness 5.5 mm. The 100 mm radial mount pitch and 22.5 mm offset suit a wide range of European and Japanese superbikes equipped with radial caliper mounting points, including but not limited to:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAprilia RSV4, RSV4 R, RSV4 RR, RSV4 RF, RSV4 1100, RSV4 1100 Factory\u003c\/li\u003e\n\u003cli\u003eDucati 848, 899, 959, 1199, 1199 S, 1199 R, 1299, 1299 S, Panigale V4, V4 S, V4 R\u003c\/li\u003e\n\u003cli\u003eBMW S1000RR, HP4, HP4R, M1000RR\u003c\/li\u003e\n\u003cli\u003eHonda CBR 1000 RR, CBR 1000 RR-R, CBR 600 RR\u003c\/li\u003e\n\u003cli\u003eKawasaki ZX-10 R, ZX-10 RR, ZX-6R\u003c\/li\u003e\n\u003cli\u003eMV Agusta F3, F4\u003c\/li\u003e\n\u003cli\u003eSuzuki GSX-R 600, GSX-R 750, GSX-R 1000\u003c\/li\u003e\n\u003cli\u003eTriumph Daytona 675, Daytona 675 R, Daytona 765, Daytona 765 Moto 2\u003c\/li\u003e\n\u003cli\u003eYamaha R1, R1M, R6, R7\u003c\/li\u003e\n\u003cli\u003eKTM RC 390, RC8 1190\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAlways verify the exact mount pitch, offset, and rotor diameter for your specific model and year before fitting. For racing use only — not approved for public road use.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e220B47330\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiston diameters\u003c\/td\u003e\n\u003ctd\u003e30 mm and 34 mm (4 pistons: 2x 30 mm, 2x 34 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaliper body\u003c\/td\u003e\n\u003ctd\u003eTwo-piece bolted, CNC-machined aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRadial mount pitch\u003c\/td\u003e\n\u003ctd\u003e100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOffset\u003c\/td\u003e\n\u003ctd\u003e22.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor ring width (approx.)\u003c\/td\u003e\n\u003ctd\u003e35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum rotor thickness\u003c\/td\u003e\n\u003ctd\u003e6 mm (optimum 5.5 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrake fluid compatibility\u003c\/td\u003e\n\u003ctd\u003eDOT 4 and DOT 5.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded brake pads\u003c\/td\u003e\n\u003ctd\u003eSintered, part no. 07BB1973\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended use\u003c\/td\u003e\n\u003ctd\u003eRacing and track day use only — not road-legal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Brembo","offers":[{"title":"Default Title","offer_id":53168787915018,"sku":"220B47330","price":1498.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/220B47330_fc8a301f-5073-4b14-92d6-d44b08dd0893.png?v=1780815162","url":"https:\/\/inter-pace.com\/th\/products\/brembo-220b47330","provider":"Inter-Pace","version":"1.0","type":"link"}