Ergotec Swell-RE | 31.8 Ahead Stem – Your Upgrade for More Control & Ergonomics

Do you want to ride in a sporty manner while not leaving comfort and control to chance? The Ergotec Swell-RE | 31.8 Ahead Stem takes you exactly there – with a robust design, adjustable angle, and maximum stability. Whether it’s a city cruiser, trekking bike, or E-bike – this stem is ready for everything, even for fast S-pedelecs up to 45 km/h!

✅ Your Advantages at a Glance:

• For sporty E-bikes & S-pedelecs: With Safety Level 6 – the highest safety level from Ergotec
• Angle adjustable: Individually adjustable angle from -20° to +40° – for optimal riding position
• Top material: Made from high-quality AL 6061 T6 aluminum, 3D forged – lightweight & super stable
• Strong hold: 4-bolt handlebar clamp for absolute rigidity & torsional strength
• Versatile use: Perfect for sporty tours, E-bike commuters, or everyday cyclists
• Oversized clamp: 31.8 mm – fits most modern handlebars
• Durable & stylish: Black, sandblasted – looks sporty, lasts forever
• Comfort through ergonomics: Effective height and length gain for ideal handlebar position

Technical Specifications Overview

• Handlebar clamp: 31.8 mm
• Fork clamp (steerer dimension): 28.6 mm / 1 1/8 inches
• Extension (length): 80 mm or 100 mm
• Clamp height: 45 mm
• Angle adjustment: -20° to +40°
• Effective height gain:
  -25 / 0 / +40 mm (at 80 mm extension)
  -30 / 0 / +55 mm (at 100 mm extension)
• Effective length gain: 
  70 / 80 / 65 mm (at 80 mm extension)
  90 / 100 / 80 mm (at 100 mm extension)
• Material: Aluminum AL 6061 T6, 3D forged
• Surface: Black, sandblasted
• Weight: approx. 280 g (80 mm) / approx. 295 g (100 mm)
• Safety Level: 6 (suitable for S-pedelecs up to 45 km/h)

Why Safety Level 6?

The Safety Level 6 represents maximum load capacity at Ergotec – specifically designed for the high forces acting on E-bikes and fast S-pedelecs up to 45 km/h. All components with this safety level are tested according to the strictest standards. For you, this means uncompromising safety at full performance.

Scope of Delivery:

1x Ergotec Swell-RE | 31.8 Ahead Stem (in selected length)