I bought a Throttlemeister which has the tightener on the end of the grip. It's not cruise control., but I enjoy it better than a thumb lock mechanism. It was about $160 if I recall, but well worth it
+1
Used throttlemeister, quality piece.
2015 Matt Grey F6B Deluxe - Gloria
2011 BMW K 1300S - Stella
2000 Triumph Sprint ST - Trixie
2000 Ducati Monster 900 - Monster
1985 HD FXRS (Still in the Shop as a reminder) - Frita
1984 HD XLX - The First