Xray RX8 Kevlar-reinforced front & rear belts
Coming from Xray and made for the RX8 1/8th on-road kit are Kevlar-reinforced front and rear belts. The specially designed drivetrain belts are very thin and elastic and they therefore greatly improve the drivetrain efficiency. The 6.0mm x 204mm front and 8.0mm x 204mm rear belts are available separately.
Source: Xray [teamxray.com]