Your search for "Monster 821" revealed the following:
SC PROJECT DUCATI MONSTER 797 (2017 - 2020) CR-T Muffler, carbon fiber, with full titanium link pipe D32-T36C
$568.10Description The CR-T muffler is the the unmistakable signature of the Racing style of SC-Project. Multiple Moto2 World Champion was...
MOTOCORSE TITANIUM ALTERNATOR COVER MTS-HYPERM-M1100 /796/ 696/1200/821
$285.00TITANIUM ALTERNATOR COVER MTS-HYPERM-M1100 /796/ 696/1200/821
CNC RACING | Throttle control tube RBW DUCATI - SPORT
$39.37Throttle tube version SPORT designed to eliminate the slop/play of the throttle control. Machined from solid and made of special plastic...
CNC RACING | Single-Sided Swingarm Stand Pin for Ducati – CNC Aluminum Diameter 25.1 mm and 25.7 mm (Ø25.1 and Ø25.7)
$36.03Precision-machined CNC aluminum stand pin tailored for Ducati single-sided swingarm rear stands—delivering reliable performance and effortless fitment. Custom fit (Ø25.1...