The belts for the 918 are not the usual standard belts, they have a very small cross section and they are made by Gates in the US. They are very pricey and £20 or so seems to be the going rate.
There are two sizes that are used on the 918, one a little shorter than the other (Too cold to go out and check the sizes!). Make sure you get the correct one!
Andrew.
Edited By Andrew Tinsley on 18/01/2023 17:27:09