HOLIDAY SCHEDULE: We'll be closing early at 3:00 PM PST on Dec. 24 and will be closed on Dec. 25–26 in observance of Christmas. Wishing everyone a safe, happy, and wonderful holiday!
The new KOSO racing air filter cover for 2022+ Grom models is not only easy to install, but it will increase the airflow, improve filtering efficiency and raise the engine...
NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES KOSO 4 Valve Head Replacement Camshaft - Honda Grom MSX 125 NOTES: Professional installation...
Need to monitor your engine temperature? Koso's Mini 3 Cylinder Head Temperature meter is designed especially for 2014-2020 Honda GROM® which is the perfect addition for you. Its peak recall...
NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES Koso Camshaft Kit - Honda Grom MSX 125 (2014-2020) 4 Speed Engine Koso Camshaft Kit...
The new KOSO performance camshaft for Honda Grom 2022+ will give you great results at high RPM. This camshaft can be used with a stock engine, but will even...
Koso's Air Box Connecting Tube has been developed to link Koso's 28mm throttle body and the stock air box. Compatible with 2022+ 5 Speed Honda GROM 125 ...
KOSO 4 Valve Head Replacement Rocker Arms - Honda Grom MSX 125 NOTES: Professional installation is highly recommended! Disclaimer: NO WARRANTY ON RACE ENGINE parts or engine bore...
KOSO Gear Indicator Bracket for Honda Grom 125Gear Indicator Bracket for Honda GROM 125Included Items:(1) Chrome bracket(1) Bar clamp with rubber insert(1) 6mm-1.0 x 18mm socket head bolt(1) 6mm-1.00 serrated...
KOSO Gear Indicator for 2014-2020 Honda Grom 125Gear Indicator for Honda GROM®Always wondering in which gear you’re in? Avoid this question by using our gear indicator for Honda GROM®. Lightweight,...
