This Koso accessory is designed to deliver reliable performance, modern styling, and practical functionality for your motorcycle.

*Does not fit 2022+ models THIS IS AN AFTERMARKET PART BUILT FOR RACING PURPOSES ONLY. KOSO IS NOT RESPONSIBLE FOR ANY DAMAGES CAUSED TO THE PARTS, VEHICLE, OR TO YOURSELF AND OTHERS.

  • Premium Koso quality and finish
  • Designed for practical motorcycle use
  • Ideal upgrade for style, comfort, or functionality

Specifications

  • fits Grom ® and Monkey ®.
  • sold as pair.
  • for 2V head only.
  • replacement for 170cc BIG BORE KIT only.

Why Buy From Hurtle Gear?

  • 100% Genuine Parts
    We supply only authentic motorcycle parts and accessories from trusted, authorised brands.
  • Fast Dispatch from Western Australia
    In-stock items ship quickly from our WA warehouse for reliable Australian delivery.
  • Australian-Based Support
    Get help from real riders who understand the products we sell and the bikes they fit.
  • Trusted by Riders Australia-Wide
    We’ve received thousands of positive reviews across platforms including Google, SmartCustomer, TrustPilot, eBay, Facebook and more.
  • Over 13 Years in Business
    Hurtle Gear has been supporting Australian motorcyclists for more than 13 years.
SKU MO623100
Brand Koso
Product Specifications