PBR Standard Steel 4412 - 420 SprocketRef : PBR01234A / 1096604011

PBR Standard Steel Sprocket 4412 - 420 (Manufacturer Ref: 4412 55 F)

Designed by PBR, a brand born from competitive experience, this steel sprocket is aimed at urban riders looking for a robust part for final drive transmission. Machined from high-quality 18NCD5 steel, it features a black finish and a standard profile suitable for 420 pitch chains. Ideal for replacing the original sprocket on smaller displacement bikes, it focuses on longevity and consistent machining rather than marketing gimmicks.

• Color: black
• Material: 18NCD5 steel
• Number of teeth: 55 teeth
• Chain pitch: 420
• Type: standard (direct replacement)
• Manufacturer reference: 4412 55 F

The PBR manufacturing process, inspired by competition, aims to reduce wear through better resistance to corrosion and abrasion. This sprocket fits into a classic transmission set — sprocket, chain, and rear wheel — and is particularly suited for the urban machines listed in the compatibility reference (Derbi Senda X-Treme 50 SM, Gilera SMT 50 Drift, Aprilia SX 50 Factory). For safe installation and proper chain slack adjustment, it is recommended to have a professional or experienced mechanic perform the installation and check.