all sides of the chain are cleaned at the same time

if you want to take safety a step further

where performance goes before minimalist design

windproof and ventilating

PBR Ultra-Light Aluminium Hard Anodized Rear Sprocket 4522 - 525 4522 40 LD ktm-500-exc-six-days-500-2013-esi9952719 all sides of the chainRace Experience Thanks to Many Years of Competition Experience, PBR Developted A Wide Range of High Quality Sprocks in Collaboration with Top Teams. High Wear Resistance Reduces Flictions High Precision Manufacturing Use of Top Quality Gross Material Chain Pitch: 525. 0 Material: Aluminum Realar Teeth: 40. 0 Rear Type: 4522 REAR Version: Ultra Light self cleaning Hard Anodised