Brembo Radial M4 Monoblock Brake Caliper Kit Black 100mm – Race Use Only (220988550)

Engineered exclusively for track use, the Brembo Radial M4 Monoblock Brake Caliper Kit in black (100mm, part no. 220988550) is a race-specification braking system that delivers consistent, fade-free stopping power lap after lap. Carrying no road homologation (no ABE), this kit is intended solely for motorsport and track day competition — a deliberate choice that allows Brembo to push performance beyond street-legal limits without compromise.

Key Features

• Monoblock cast aluminium caliper body — one-piece construction eliminates flex between caliper halves, giving a firmer lever feel and more predictable modulation under extreme braking loads.
• Four 34 mm pistons with double sealing — dual seals on each piston optimise retraction and maintain consistent pad-to-disc clearance, reducing drag and heat build-up across a full race stint.
• Compatible with DOT 4 and DOT 5.1 brake fluid — gives teams the freedom to use their preferred fluid specification without hardware changes.
• Supplied with high-performance sintered brake pads (part no. 07BB3793) — race-compound pads are included so the kit is ready to install from the moment it arrives.
• Anodised gloss black finish — a premium, durable surface treatment that resists heat discolouration and adds a purposeful aesthetic to any supersport machine.
• Race Use Only — no street approval (no ABE). Designed and validated for closed-circuit competition, not public roads.

Construction and Performance

The M4 designation sits at the top of Brembo's radial caliper range, sharing DNA with the systems found on MotoGP and Superbike championship machines. Cast as a single aluminium monoblock, the caliper body is stiffer than any two-piece equivalent, translating lever input directly into clamping force with minimal energy lost to structural deflection. Cooling is optimised through internal ducting geometry, keeping fluid temperatures in check even on demanding circuits with repeated heavy braking zones.

The 100 mm radial mounting pitch suits the bolt patterns of a wide range of modern supersport motorcycles. With an offset of 30 mm and a maximum disc thickness of 6 mm (optimal operating thickness 5.5 mm), the kit is sized for high-specification aftermarket and OEM discs used in a race environment. The 35 mm friction ring dimension is compatible with standard-diameter front discs across the supported fitment range.

Compatible Spare Parts and Accessories

Brembo supports the M4 with a full range of service items. The following part numbers are available separately:

• Pad retaining spring plate: part no. 120225579
• Bleed screw: part no. 05338752
• Bleed screw dust cap: part no. 05150220

Fitment and Compatibility

The Brembo Radial M4 Monoblock Brake Caliper Kit (100mm) is compatible with a wide range of supersport and superbike platforms, including but not limited to:

• Aprilia: RSV4, RSV4 R, RSV4 RR, RSV4 RF, RSV4 1100, RSV4 1100 Factory, RS 660, RS 457
• BMW: S1000RR, M1000RR, HP4, HP4R
• Ducati: 848, 899, 959, 1199, 1199 S, 1199 R, 1299, 1299 S, V4, V4 S, V4 R
• Honda: CBR 600 RR, CBR 1000 RR, CBR 1000 RR-R
• Kawasaki: ZX-6R, ZX-10 R, ZX-10 RR, ZX-4 RR, Ninja 400
• KTM: RC 390, RC8 1190
• MV Agusta: F3, F4
• Suzuki: GSX-R 600, GSX-R 750, GSX-R 1000
• Triumph: Daytona 675, Daytona 675 R, Daytona 765, Daytona 765 Moto 2, Street Triple 765 R, Street Triple 765 RS
• Yamaha: R1, R1M, R3, R6, R7, R9
• Bimota: KB998 Rimini

Please verify your specific model year and existing brake disc diameter before ordering. This kit is for closed-circuit race use only and carries no road approval.

Specifications