Dyson DC41 - Changeover & Internal Hose Replacement 

This tutorial applies to several models of Dyson Ball Vacuums (DC41, DC65, DC66) and shows the steps to replace the Internal Hose assembly and the changeover hose. If you are experiencing issues with suction performance with your Dyson these 2 hoses could be the source of your problem. After several years they can start to develop cracks and holes, contributing to decreased performance.
This is an easy fix. If you have all the tools and parts you should be able to get through it in an hour or 2.
Dyson Part Numbers (Amazon affiliate links)
920682-01 - Internal Hose Assembly amzn.to/3VOkyO4
922009-01 - Changeover Hose - amzn.to/4cO4nqE
Replacement Filters - amzn.to/3W4QLln