-Who wouldn't want to feel like Rossi or Marquez? These brake air cooling .ducts help you to get the ultimate MotoGP feel from your bike.These ducts come straight from the MotoGP and WorldSuperBike, and were developed together with Pramac Racing. Finished either in mat or glossy, that adds the ultimate track-ready feel to your streetgoing motorcycle. -In MotoGP and WorldSuperBike these ducts are used to guide extra cooling air to the brake components, in order to reduce brake disc temperature and brake pad feeding, resulting in 30-40% better cooling of the brakes. Race-ready components like Brembo Monoblocs have been available for the street for some years now, and are standard on some of the top-end models, like the M50 Monoblocs on the Panigale S, the Brembo Monoblocs on the CBR1000RR SP and the Monobloc M430 kits that stop the RSV4 and RSV4R / RSV4RR. -So, what's missing for the true track-look and track-feel? CK CATTLE KING Air Cooling Ducts, that finishing touch for the track-ready look of your bike.These kits are bolt-on, fitting under your motorcycle brake caliper. We offer a range of standard bolt-on installation kits, and the ducts can be ordered separately as well, so you can custom build an installation kit. - Make sure that the installation distance of your motorcycle calipers is 100mm or 108mm. Thank you! - Fit:ForBMW HP4 12-14 M 1000 RR S 1000 R 13-16 S 1000 R 17-20 S 1000 RR 08-11 S 1000 RR 12-14 S 1000 RR 15-16 S 1000 RR 17-18 S 1000 RR 19- S 1000 XR 15-16 S 1000 XR 17-19 S 1000 XR 20-