This 520 chain conversion kit includes a case hardened steel front sprocket and a Supersprox rear sprocket.
The Stealth line up of Supersprox sprockets focus on longer-life without compromising on weight. This is achieved by having steel teeth on an aluminum center part.
Used by many factory teams and racers on the Dakar rally and Baja 1000, these sprockets are made to last!
Better than lightweight steel sprockets, because pound for pound, the lightweight steel sprockets can not handle the same torque compared to the Stealth sprockets.
Better than aluminum sprockets, because as we all know aluminum doesn't last long, certainly no where near 20,000 miles which can be achieved with a Stealth sprocket.
The front sprocket featured drilled lightening holes to reduce rotating mass.
Front Sprocket : Case Hardened Steel - 17T
Rear Sprocket : Stealth Steel Sprocket - 45T (Fits HP Forged Wheels Only)
Chain (Optional) : EK 3D 520Z - 120 links
Sprocket Nuts (Optional) : Proti Fully Forged Titanium Sprocket Nuts
BMW S1000RR - 2015 to 2018 (Forged HP Wheels Only)