The current proposal says:
> A byte is 8 bits, which is at least large enough to contain the ordinary literal encoding of any element of the basic character set literal character set and the eight-bit code units of the Unicode UTF-8 encoding form and is composed of a contiguous sequence of bits, the number of which is bits in a byte.
But instead of the "and is composed" ending, it feels like you'd change the intro to say that "A byte is 8 contiguous bits, which is".
We can also remove the "at least", since that was there to imply a requirement on the number of bits being large enough for UTF-8.
Personally, I'd make a "A byte is 8 contiguous bits." a standalone sentence. Then explain as follow up that "A byte is large enough to contain...".