KOSO Mini 3 Air/Fuel Ratio Meter Honda Grom 125 (2014-2021)

Koso's Mini-3 Air/Fuel Ratio meter is designed especially for Honda GROM 125 (2014-2021) using the OEM existing narrowband o2 sensor located on the right side of the cylinder head. Direct plug and play for 2014-2020 Honda Grom 125.

Gauge mounts (sold separately)

This Gauge will fit the 7/8" Koso Top Clamp for a nice clean installation. For those who are looking for a more simple mounting solution other than the top clamp, an Ultra Slim Mounting Bracket.

NOTE: This gauge works with the existing narrowband o2 sensor on the cylinder head. It does not include any o2 sensor nor will it work with a wideband o2 sensor.

• Allows you to monitor air/fuel mixture from your OEM existing narrowband o2 sensor located on the cylinder head
• Easy installation for 2014-2020 Honda Grom 125
• Dimensions: 30.5 mm (1.2") L x 60.5 mm (2.4") W x 12.3 mm (.5") D

This meter can be easily installed by plugging it into your OEM oxygen sensor and connecting the instrument to a DC 12 V source of power, and you’re ready to go!

INSTALLATION INSTRUCTIONS