BOX TWO TOP LOAD STEM 22.2mm 1-1/8"

Product Overview

The Box Two Top Load Stem is a cold-forged and CNC-machined aluminum stem designed for 1-1/8" steerer tubes and standard 22.2mm handlebars. Available in 48mm, 53mm, and 60mm reach options with a 0-degree rise, it uses a top-load clamping design for handlebar installation. Built from 6061-T6 aluminum, it provides a durable, precise connection between fork and handlebars.

Key Features

• Cold-forged and CNC-machined 6061-T6 aluminum – Cold forging increases material density and strength before machining, resulting in a stronger stem at the same weight compared to standard machined stems
• Top-load clamp design – Handlebar clamps from the top with front-facing bolts, making bar installation and removal easier than side-load or front-load designs
• 22.2mm handlebar clamp – Standard BMX handlebar diameter, compatible with most traditional BMX bars (not compatible with 25.4mm or 31.8mm oversized bars)
• Multiple reach options – Available in 48mm, 53mm, and 60mm extensions to accommodate different rider sizes and handlebar positioning preferences
• 0-degree rise – Flat profile maintains consistent handlebar height relative to the steerer tube

Technical Specifications

• Material: 6061-T6 aluminum alloy
• Clamping Type: Top load
• Steerer Tube Diameter: 1-1/8"
• Handlebar Clamp Diameter: 22.2mm
• Rise: 0°
• Reach Options: 48mm, 53mm, 60mm
• Weight: 234g (48mm), 240g (53mm), 260g (60mm) (±5%)
• Steerer Clamp Bolts: M7 x 22mm (P1.0 thread pitch)
• Handlebar Clamp Bolts: M7 x 22mm (P1.0 thread pitch)

Compatibility and Ideal Use Cases

This stem is compatible with any 1-1/8" steerer tube (threadless) and standard 22.2mm handlebars. Not compatible with 1.5" or tapered steerer tubes, or oversized handlebars (25.4mm or 31.8mm). Works with integrated, semi-integrated, and external cup headsets that accept 1-1/8" steerer tubes. Ideal for riders using traditional standard-diameter handlebars who want a strong, reliable stem with easy bar installation. Top-load design provides straightforward handlebar installation—simply loosen the top bolts, slide in the bar, and retighten. Choose reach based on rider size and preferred handlebar position—shorter reaches position bars closer to the rider for quicker handling, while longer reaches provide more reach and stability. Note: Ships direct from manufacturer if located in the USA, which may result in separate delivery from other items.