OEM Honda Grom 125 Piston-STD (2022+)

This authentic Honda piston is a direct replacement for the standard (STD) size in your bike's crankshaft and piston assembly. Crafted to Honda's exacting standards, it ensures optimal compression, smooth operation, and longevity in air-cooled single-cylinder engines. Ideal for routine maintenance, rebuilds, or restoring factory performance after wear. Compatible with the 124cc engine featuring a 50.0mm bore and 63.1mm stroke, this piston helps maintain the bike's efficient 10.0:1 compression ratio for responsive power delivery.

Compatibility

• Honda Grom 125 (MSX125): 2022, 2023, 2024, 2025, 2026 models (including ABS variants)
• Other Models: Honda Monkey 125 (Z125), Trail 125 (CT125), Super Cub 125 (Euro-5 compliant versions)