5T SPEEDTWIN TIGER 100 TR5 500CC. 5T SPEEDTWIN TIGER 100 TR5. TRIUMPH PRE UNIT PISTONS 63MM +060". 63MM +060". 500cc 7:1 compression ratio. TRIUMPH PRE UNIT PISTONS. Made to Triumph drawings by. As a rule we try and source our spares from British manufacturers if at all possible and aim to provide a choice between genuine parts and good quality pattern parts.
