KOSO NORTH AMERICA

Designed to install RX4 TFT Multimeter (sold separately) Easy to install. BRACKET XRS 700 RX-4

Designed to install RX4 TFT Multimeter (sold separately) Easy to install. BRACKET XRS 900 RX-4

Designed to install RX4 TFT Multimeter (sold separately) Easy to install. BRACKET MT-09 RX-4

Arm made of 6061 aluminum, wheel made of chromium molybdenum steel Long lasting OEM replacement Works with stock engine. CAM CHAIN TENSIONER GROM

Arm made of 6061 aluminum, wheel made of chromium molybdenum steel Long lasting OEM replacement Works with stock engine. CAM CHAIN TENSIONER GROM

Can be used with stock engine, but for better results use with the Koso's 170 cc big bore kit. CAMSHAFT GROM

CNC-machined for added strength over stock Adds durability and stability to clutch during installation and while shifting gears at high speed. CLUTCH PART KOSO - GROM

CNC-machined for added strength over stock Adds durability and stability to clutch during installation and while shifting gears at high speed. LIFTER PLATE ENHANSED CLUTCH GROM

Improves axial force Reduces risk of clutch slipping Includes high-tension clutch springs and discs. CLUTCH KIT KOSO - GROM

Combining throttle body with intake manifold will allow a better air/fuel mixture for quicker throttle response Control the amount of air flowing to the engine's combustion chamber. CONNECTING AIR...

Easily monitor engine temperature Peak recall function allows you to see maximum temperature reach. CYL TEMP - GROM

Universal Cylinder Head Temperature Sensor Temperature Range: 0-150?C or 32-248?F. TEMP SENSOR CYL HEAD 10MM