
PBR Standard Steel Sprocket 4406 - 420 (Manufacturer Part No: 4406 53 F)
Born from PBR's competition experience, this steel sprocket is designed for urban riders who demand reliability and longevity. Machined from high-quality 18NCD5 alloy, it features a black finish and a standard design suitable for 420 pitch chains.
The manufacturing process follows a strict protocol ensuring production repeatability. The composition and surface treatment limit corrosion and abrasion, while the finish and machining help reduce friction when in contact with the chain. The result is a robust sprocket, suitable for daily use on roads and in urban environments.
Compatible with any drivetrain using a 420 chain and a 53-tooth sprocket. Common mounting examples include: DERBI SENDA X-TREME 50 R (2022), APRILIA RX 50 (2018), DERBI SENDA 50 SM DRD X-TREM (2016). Always check your mounting specifications before purchase to ensure compatibility.