This is usually what gets replaced in order to eliminate the oil leak

Additional information

Designed to easily loosen and tighten rear sprocket nuts

Made of durable 7075-T6 aluminum and brace on the handlebar to provide direct control

K&N - High-Flow OEM Air Filter (KA-6005) Options:KA-6005 This is usually what getsDesigned to provide increased performance Pleated media provides a large filtration area offering long service intervals Multi Layers of woven cotton gauze media offers excellent filtration Fits directly into OEM Airbox with application specific Sealing Bead to ensure a precise fit Fuel Management modifications are not normally required for increased performance Washable & reusable, pre oiled and ready to ride!