SVK 7075-T6 Aluminum #219 Rear Sprocket – 68T to 79T for Rotax, IAME, ROK 2-Stroke Karts

SVK racing rear sprocket for #219 chain, machined from 7075-T6 aircraft-grade aluminum. Built for 2-stroke competition (Rotax, IAME, ROK) and trusted by top teams for strong performance and reliability.

Why 7075-T6

7075-T6 is much stronger and longer-lasting than the 6061 aluminum used in budget sprockets. Each sprocket is CNC-machined to a tolerance of 0.01 mm for smoother chain contact, less friction and better power delivery to the rear axle.

Fitment

• Chain: #219 pitch
• Engines: Rotax, IAME (X30, KA100), Vortex ROK and other 2-stroke kart engines
• Tooth count: 68T to 79T, the most common range for 2-stroke karts (select above)
• Mounts to a standard #219 sprocket carrier (sold separately; see our 50 mm quick-change sprocket hub)

Gearing tip

One tooth on the rear sprocket is a much finer change than one tooth on the front driver. Most drivers keep a spread of three or four rear sprockets in the kart bag so they can dial in gearing for each track and for changing conditions during the weekend.

Built tough. Runs smooth. Made to win. Stocked in California and run on track before we sell it.