As above really. Difficult? Simple? Adjustable or not?

That rumbling's a bit of a dead giveaway, especially when it goes away
on a roundabout.......
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Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
Tyger, Tyger Burning Bright (Remove rust to reply)
Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 75 TS 156 TS S2
Suzuki Bandit 600
#Triumph Speed Triple: Black with extra black bits (I live in hope)
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