I really enjoy my Rebel 17--get a smile on my face every time I remove the clean brass
One thing that I noticed is the rollers will wear after 6-12 months--I believe it's considered normal fair wear and tear.
STM has replacement rollers but I've always felt they were a bit over priced.
So this time I decided to see if I could source the rubber tubing cheaper.
Turns out it's metric ID of 10 mm and OD of 20 mm.
Cutting to the chase I found replacement hose at a car speed shop. $3 per foot plus shipping but that's still much better than the cost from STM.
I did get it in red just because I could
I'm sure you can find it at other speed shops but here is the one I used: https://www.verociousmotorsports.com/