Complex sentence: George attempts to be included in a photograph with Tyldesley and another T.T. rider-Norton -, but as they assemble for the photograph, George observes a stray cargo crate heading towards them.
Split into simpler sentences: George attempts to be included in a photograph with Tyldesley and another T.T. rider-Norton. But as they assemble for the photograph, George observes a stray cargo crate heading towards them.