Single drivetrains manage with just one chainring at the front and thus reduce the number of high-maintenance shifting components. The cockpit is clearer and shifting is more intuitive with just one gear lever. However, for many, the range of the overall gear ratio is not sufficient.
For snap-breathing fans of the 1x10 drivetrain concept, a special mountain sprocket can be a saviour on steep climbs. But 29er riders or bikers with double cranks can also benefit from a 40 or 42 mm "pizza plate". A number of manufacturers now offer the extra-large slip-on sprockets for retrofitting.
However, before you can convert your bike to ramp-compatible, you should consider a few points. Check whether your cassette is suitable for the conversion. There should be no problems with Shimano XT and XTR as well as Sram X5, X7 and X9. Your rear derailleur must also have sufficient capacity. A medium cage usually only works with a single chainring. For double drivetrains, you need a rear derailleur with a long cage. Rear derailleurs with a short cage do not have sufficient capacity for such large sprockets.
