Or calculate how many miles the bike has done and reset the odometer to that figure. This is not illegal. It only becomes illegal if you pretend to the next buyer that the milage is lower - so tell them what you've done and there's no problem!
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball