Collection: 2025 Honda Grom 149CC Big Bore Build - Custom Parts & Upgrades

Custom 2025 Honda Grom performance build with premium upgrades

Premium 2025 Honda Grom Build - 160 Miles to Track-Ready

This showcase build represents our first 2025 Honda Grom project, featuring top-tier performance upgrades installed at just 160 miles. Zac collaborated with our team before purchase to design the ultimate Grom build with best-in-class components.

Featured Performance Upgrades:

  • DHmotoring big bore and ported cylinder head
  • Complete Aracer standalone ECU system
  • Racingbros suspension components
  • Ohlins rear shock absorber
  • Premium OEM-style body components
  • Professional engine tuning and setup

From our shop directly to the legendary Tail of the Dragon - this build proves what's possible with quality parts and expert installation. Browse the components that made this transformation possible.

2025 Honda Grom at Tail of the Dragon after performance upgrades

Howling Moto