DBA42281

4000 Series disc brake rotors are a direct replacement single piece brake rotor, designed for drivers seeking upgraded braking above and beyond standard OE levels.

4000 Series HD features a smooth OE style rotor finish, popular for drivers looking for the benefits of a 4000 Series rotor but requiring an OE style look, such as controlled race divisions.

Cast from high carbon alloyed iron and undergoing Thermal Stability Profiling, DBA’s metallurgy can handle the increased stress and heat generated under intense braking applications, time and time again.

Featuring DBA’s Kangaroo Paw ventilation that implements a series of 144 diamond and teardrop patterned pillars, DBA achieves up to a 30% increase in surface area and 20% improvement in cooling efficiency (as compared to a traditional straight vane design).

Diameter [mm]	350
Disc Vent	Kangaroo Paw
Number of Holes	5
Inner Diameter [mm]	75.00
Minimum Thickness [mm]	22
Thickness [mm]	24
Height [mm]	66.50
Tech Bulletins	Bedding in Brakes
Tech Bulletins	How to clean a Disc Rotor before fitting
Tech Bulletins	Motorsport - Important Info

Compatibility
BMW	1 Series (E82 1M Coupe) 1M	3.0 Twin Turbo 340BHP (2011-2012)	2011-2012	Brake Caliper: ATE	Rear	Brake Pads: DB1499	Disc Diameter [mm]: 350
BMW	1 Series (E82 M Coupe) 135	3.0 Turbo (2011-2013)	2011-2013	Brake Caliper: ATE	Rear	Brake Pads: DB1499	Disc Diameter [mm]: 350
BMW	M3 E90	4.0 (2007-2010)	2007-2010	Brake Caliper: ATE	Rear	Brake Pads: DB1499	Disc Diameter [mm]: 350
BMW	M3 E90	4.0 (2010-2011)	2010-2011	Brake Caliper: ATE	Rear	Brake Pads: DB1499	Disc Diameter [mm]: 350
BMW	M3 E92	4.0 (2007-2010)	2007-2010	Brake Caliper: ATE	Rear	Brake Pads: DB1499	Disc Diameter [mm]: 350
BMW	M3 E92	4.0 (2010-2013)	2010-2013	Brake Caliper: ATE	Rear	Brake Pads: DB1499	Disc Diameter [mm]: 350
BMW	M3 E93	4.0 (2007-2010)	2007-2010	Brake Caliper: ATE	Rear	Brake Pads: DB1499	Disc Diameter [mm]: 350
BMW	M3 E93	4.0 (2010-2013)	2010-2013	Brake Caliper: ATE	Rear	Brake Pads: DB1499	Disc Diameter [mm]: 350