JT SPROCKETS Steel Standard Rear Sprocket 857 - 520 JTR857.47 mash-five-hundred-400-2017-esi1912216 With ventilation openings directly against

With ventilation openings directly against the body

0 Chain_quality: Racing Front_sprocket_version: Standard Rear_sprocket_version: Standard Ring_type: No seal Use: MX

MRA Originally-Shaped Windshield "O" Ready

- CE certified

JT SPROCKETS Steel Standard Rear Sprocket 857 - 520 JTR857.47 mash-five-hundred-400-2017-esi1912216 With ventilation openings directly againstWith the Leading Edge Edge Technology and Using Only the Highest Grade of Special Steel Alloys, JT Sprock's Produce A Full Range of Superior Quality Motorcycle Front and Reary Sprocks. Ultra Durable High Carbon C49 Steel Chain_pitch: 520. 0 Material: Steel rear_prolet_teeth_count: 47. 0 REAR_PROET_TYPE: 857 REAR_PROPET_SSERION: Standard