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Ergotec Stem Octopus XL (Ahead 50, 28.6/31.8, 50/115mm | Black Sandblasted)

SKU: ERGO-STM-40197001
$79.95 USD $82.95
Shipping calculated at checkout.


The ergotec Octopus Ahead 50 XL stem is very stable, angle adjustment, 3D-forged aluminium ahead stem with 4 screw handlebar clamping, adjustable rise and 31.8 mm clamping diameter.

Proven High-Quality though Extreme Strength Tests. In ergotec Test Center, all ergotec handlebars, stems and seat posts are subjected to extreme long-term tests, both individually and in combination. In addition to testing in line with European standards, ergotec also tests according to the significantly higher ergotec SAFETY LEVEL requirements.

Versatile Utilization and Activity. Stems with Level 5 safety are very versatile. They can be used for Youth-bikes, Young adult (up to 100 kg), Cargo-Bike (up to 140 kg), City/Trekking Bike (up to 160 kg), Road/Gravel/Travel Bike (up to 100 kg), Mountain Bike (up to 100 kg)

Durability and Longevity. Carefree and safe on the road with the ergotec quality promise! Opting for an ergotec product always means opting for premium quality. Quality you can rely on for many years – it‘s a guarantee! Products under Safety Level 5 like ergotec Bass is expected to last for 5 years or 30,000 km.

Ergonomical Certification ensuring Comfortable Riding. Thanks to certification as an ergonomic product and the corresponding approval procedures, ergotec demonstrates that ergonomic products reduce discomfort when cycling not just in theory, but also in practice! This benefit is proven and documented by the test certificate of the Institute for Health and Ergonomics (IGR).

Performance Meets Safety. For many years ergotec supports the world champion, World Cup winner and multiple national winner Tomas Slavik. His trust in ergotec‘s MTB components, which meet his exacting requirements, confirms brand's commitment to develop high-quality products.


All steering systems and all ergotec stems are tested without exception and are then classified with a SAFETY LEVEL. All ergotec seatposts also have a SAFETY LEVEL. Irrespective of whether you ride a mountain bike, an e-bike or a touring bike – you will always get the exact component with safety certification you need.

ergotec SAFETY LEVEL is a safety classification for steering systems and seatposts on bicycles. ergotec products have a SAFETY LEVEL of 1 to 6. The higher the level, the greater the safety. Each level has their suggested bike activity, from city to cargo.

All handlebars and stems are subjected to hard long-term testing individually and in combination. The same applies for seatposts. This testing is carried out in accordance with European testing standards or even higher demands.

No other bike handlebar manufacturer in Europe has as large a testing centre as we do at ergotec. Furthermore, our products are tested frequently at recognised independent institutions.


  • Safey Level: 5
  • Clamp: 31.8 mm
  • Fork Clamp: 28.6 mm
  • Clamp Height: 41 mm
  • Angle: 0 to +60 degrees
  • Extension: 115 mm
  • Actual Heigt Gain: 50/135 mm
  • Actual Length Gain: 115/100 mm
  • Material: AL6061 T6
  • Finish: Black Sandblasted
  • Weight: ~345 g



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