Surface treatment: Transparent varnish for a stylish and durable finish

Designed for functionality and convenience

2100 lumen per unit - Extreme brightness

For extra storage can R15 be easily extended with US Drypacks By switching on a US-5 or US-10

Cylinder Diameter 54 mm

PBR Standard Steel Rear Sprocket 834 - 420 834 37 F pgo-star-50-50-1993-esi3423652 Surface treatment: Transparent varnish forRace experience Thanks to many years of competition experience, PBR developed a wide range of high quality sprockets in collaboration with top teams. High quality steel alloy 18NCD5 High wear resistance Reduces frictions High precision manufacturing Chain pitch: 420. 0 Color: Black Material: Steel Rear teeth: 37. 0 Rear type: 834 Rear version: Standard