REV Performance #219 pitch premium rear sprocket for 2-cycle kart racing — the sprocket run by Rotax, IAME and ROK teams. Each one is individually CNC machined from 7075-T6 aircraft-grade aluminum to within 0.01 mm, with a tooth profile that seats the chain in the valley of every tooth to cut friction and drivetrain loss.
#219 pitch, standard OTK/Rotax/IAME rear-hub bolt pattern
7075-T6 aluminum, CNC machined to 0.01 mm
Sizes in stock: 74T–82T (REV also makes half-tooth sizes — ask if you need one)
Made by REV Performance, USA; resold by The Kart Depot