03.6226 Pro-X Connecting Rod Kit for KTM SX 125 2016-2026 SX125

Pro-X Connecting Rod Kit for KTM SX 125

This Pro-X connecting rod kit is a direct replacement connecting rod kit for KTM SX 125 motocross bikes, referencing part 03.6226, and it restores the crank assembly connection between piston and crankshaft.

Overview

This Pro-X connecting rod kit for KTM SX 125 gives riders a dependable replacement for a worn or stretched rod in the bottom end. The kit is built to bring the crank assembly back to spec so the top end can breathe and rev the way it should. It suits riders and mechanics rebuilding a 2016 through 2026 SX125 engine.

Built For Performance

• Fits KTM SX 125 model years 2016 through 2026
• Connecting rod kit referenced under part number 03.6226
• Designed for two-stroke bottom end rebuilds
• Includes rod, bearing, and crank pin as a matched assembly
• Restores factory rod length and stroke geometry

Fits These Machines

• for KTM SX 125, 2016
• for KTM SX 125, 2017
• for KTM SX 125, 2018
• for KTM SX 125, 2019
• for KTM SX 125, 2020
• for KTM SX 125, 2021
• for KTM SX 125, 2022
• for KTM SX 125, 2023
• for KTM SX 125, 2024
• for KTM SX 125, 2025
• for KTM SX 125, 2026

On-The-Job Use

• Bottom end rebuilds on SX125 motocross bikes
• Top end refreshes where the rod shows wear or play
• Race prep for motocross and supercross style tracks
• Shop repairs requiring crank reassembly

Specs At A Glance

Good To Know

Q: Do I need to split the cases to install this rod kit? A: Yes, installing a connecting rod kit requires splitting the crankcase and pressing the crank assembly, so it is best handled by a qualified engine builder. Q: Should the crank be rebalanced after installation? A: Yes, the crank should be trued and balanced after the new rod is pressed in to avoid vibration and premature bearing wear.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.