At DMG Motorsports, we present the Vortex F5 Rear Sprocket in 42-Tooth, 520 Pitch, Black Hardcoat finish for Honda applications (251AK-42) — a race-bred aluminum sprocket built to shed weight without sacrificing durability. Vortex has been trusted at the track for years, and this F5 sprocket brings that racing pedigree straight to your bike's drivetrain. Machined entirely in-house from a specially formulated 7075 aluminum alloy, this sprocket is engineered to reduce rotating mass for quicker acceleration and sharper handling compared to a heavier OEM steel sprocket, while the black hardcoat PTFE finish keeps it looking sharp and running smooth mile after mile.

Features:

• CNC machined from 7075 aluminum for exceptional strength combined with light weight
• Hard anodized with a jet black dye for a durable, race-ready look
• PTFE coated finish adds lubricity, reduces wear, and simplifies cleaning
• Unique tooth design engineered to increase sprocket longevity
• Lightweight aluminum construction reduces rotating mass for improved acceleration and handling versus steel sprockets
• 100% CNC manufactured to Vortex's specially formulated alloy specifications
• 520 pitch, 42-tooth configuration designed to fit specific Honda models
• Trusted and track-tested by champions in Motocross, Supercross, and Road Racing

Fitment