Origin8 Pro Fit 3D Stem | 90mm | 31.8mm Clamp | ±6° | Black

Origin8 Pro Fit 3D Stem | 90mm | 31.8mm Clamp | ±6°

Lightweight strength and dependable performance for road, gravel, mountain, and everyday riding.

The Origin8 Pro Fit 3D Stem is a versatile threadless stem designed for riders looking for a durable, reliable cockpit upgrade. Precision 3D forged from AL6061-T6 aluminum, it offers an excellent balance of stiffness, strength, and low weight for everything from weekend road rides to aggressive trail sessions.

The reversible ±6° rise allows you to fine-tune your riding position by installing the stem in either a positive or negative angle. Its 4-bolt faceplate evenly distributes clamping force across the handlebar for a secure fit while simplifying installation and adjustments.

Compatible with both road and mountain bikes, the Pro Fit Stem is ISO Mountain Safety Certified and built to provide years of dependable performance.

Key Features

• 3D forged AL6061-T6 aluminum construction
• 90mm extension
• 31.8mm oversized handlebar clamp
• Reversible ±6° rise for adjustable fit
• 4-bolt front-loading one-piece faceplate
• Compatible with road, gravel, MTB, hybrid, and commuter bikes
• ISO Mountain Safety Certified
• Durable black finish

Technical Specifications

• Brand: Origin8
• Model: Pro Fit 3D Stem
• Manufacturer Part Number: 570186
• UPC: 888571072103
• Stem Length: 90mm
• Handlebar Clamp Diameter: 31.8mm
• Steerer Tube Diameter: 1-1/8" (28.6mm)
• Rise: ±6°
• Material: 3D Forged AL6061-T6 Aluminum
• Stack Height: 40mm
• Faceplate: 4-Bolt
• Color: Black
• Certification: ISO Mountain Safety Certified

Compatibility

• 1-1/8" threadless forks
• 31.8mm handlebars
• Road bikes
• Gravel bikes
• Mountain bikes
• Hybrid and commuter bikes

Why You'll Love It

• Strong yet lightweight forged aluminum construction
• Reversible angle lets you dial in your riding position
• Secure 4-bolt faceplate evenly clamps modern handlebars
• Suitable for nearly any cycling discipline
• Excellent value with dependable Origin8 quality

Before You Buy

• This stem fits 1-1/8" threadless steerers and 31.8mm handlebars.
• The stem can be installed in either orientation to achieve a +6° or -6° rise.
• Always tighten stem bolts to the manufacturer's specified torque using a calibrated torque wrench.

The Origin8 Pro Fit 3D Stem delivers reliable performance, precise steering, and versatile fit adjustment, making it an excellent choice for riders upgrading or replacing a threadless stem on virtually any modern bicycle.