Kitaco 5 Speed Transmission Kit for Honda Grom 125! This will convert your stock 4 speed transmission to 5 speed! Adding an additional gear will change the gear ratio closer, to reduce significant RPM drop when up-shifting.  Achieve quicker acceleration without sacrificing your top speed! 

Includes engine case gaskets!

•  Stock Ratio 
• 1st : 2.500 2nd : 1.550 3rd : 1.150 4th : 0.923

• 5 Gear Ratio Cross missionGEAR
• 1st : 2.571 2nd : 1.722 3rd : 1.333 4th : 1.130 5th: 1.000

Note:

The Use of the stock speedo will be off and requires you to purchase Kitaco Speed Sensor Kit (KTC-1018).

Installation requires splitting the engine cases, professional installation is highly recommended!

Installation instructions: Kitaco 5 Speed Instruction PDF