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2023 Beta 390 RR 4T - - 2020-2021
thumb and sidewall for high levels of abrasion resistance
Combined with Graves’ exclusive flash tune map this WORKS 2 system produces a solid through the mid range and top end dyno charts compared to our standard low mount systems
centrally located in the bung that connects to three vents
Keep your kickstand from sinking into the ground
RENTHAL Twinring™ Rear Sprocket - 48 Tooth - Orange 2240-520-48GPOR Gasket Set 2023 Beta 390 RR 4TInner ring is the same high strength Ultralight 7075 T 6 aluminum used for the standard Renthal sprocket Outer ring is electro less nickel coated steel for ultimate durability and is designed with the minimum amount of material to keep weight down The outer ring is expanded at 200C and then fitted over the inner; this interference fit combined with the wave pattern ensures a permanent bond for the life of the chainwheel The flat socket head screws add
