RacingBros Front Fork Lowering Kit – Honda Grom 125 (3" or 4" Drop)

RacingBros Front Fork Lowering Kit – Honda Grom 125 (All Years)

Get the slammed stance you want without sacrificing suspension performance. The RacingBros Front Fork Lowering Kit is the most complete and capable lowering solution available for the Honda Grom — offering 3" or 4" of drop while retaining the original fork shaft diameter, more suspension travel than drop-in kits, and full compatibility with premium fork internals from RacingBros, Ohlins, or OEM stock.

Lowering Specs

• 4" Lowering: 22.2" TLG — Fork Travel = 3"
• 3" Lowering: 23.2" TLG — Fork Travel = 4"
• Stock Reference: 26.2" TLG — Fork Travel = 4"

TLG measured from the top of the outer aluminum tube to the center of the axle hole.

Kit Contents

• RacingBros Lowering Steel Fork Shaft (x2)
• RacingBros Lowering Aluminum Fork Tube – Anodized Black (x2)
• 33.7mm OD Travel Spacers (x4)
• 24.5mm OD POM Spacers (x2)
• RacingBros Lowering Springs (x2) — see spring rate options below
• RacingBros Wipers (x2) & Seals (x2)

Available Spring Rates

• 6.5 N/mm – Recommended for riders up to 265 lbs
• 7.5 N/mm – Recommended for riders 280 lbs and above

Compatible Fork Internals (Sold Separately)

• OEM Stock internals
• RacingBros Adjustable Front Fork Kit
• Ohlins Front Fork Kit – Grom

Why RacingBros Over Ruckus Fork Conversions?

• Retains the original Grom fork shaft diameter and tube size for full OEM strength
• Allows use of the OEM Grom front fender
• More suspension travel than a Ruckus conversion
• Compatible with RacingBros, Ohlins, or stock fork internals
• Adjustable ride height with the ability to limit suspension travel

Why RacingBros Over 2" Drop-In Kits?

• More suspension travel retained
• Does not protrude above the triple clamp — no handlebar restrictions
• Compatible with any fork internal of your choice
• Cleaner look — shorter fork tube body
• Adjustable ride height

Lowering Height Recommendations

• 3" Drop: Best for riders keeping OEM headlight and front fender — better travel and headlight-to-fender clearance
• 4" Drop: Recommended only for builds running aftermarket headlights (e.g., Monstereye, Composimo Triple X)

Installation Notes

• Some OEM fork parts must be reused: fork shaft guides, bottom fork brackets, and other non-included hardware
• 180ml of fork oil required per fork leg
• Professional installation strongly recommended
• Reference the RacingBros Adjustable Fork Installation Guide and the Lowering Kit Instruction Manual