Ergotec Atar 550 – The sturdy seatpost for your cargo and everyday bike

Whether for daily commutes in the city or heavy loads with the cargo bike – the Ergotec Atar 550 adjustable seatpost is designed for tough use and high comfort. With its extra length of 550 mm, the stable 2-bolt clamp head, and an offset of 15 mm, it offers you a perfect combination of stability, ergonomics, and adjustability.

Thanks to Safety Level 5, it is particularly load-bearing – just the right choice for you if you prioritize quality and durability.

✅Your advantages at a glance

• Extra long (550 mm) – for maximum flexibility when adjusting height, ideal for tall riders or special frames
• 15 mm offset to the rear – for a comfortable seating position with more legroom
• 2-bolt clamp head – ensures secure hold of the saddle, even under heavy load
• Cargo-ready: designed for high loads, ideal for cargo bikes
• Made of high-quality aluminum AL 6061 T6 – lightweight, robust, and corrosion-resistant
• Black, sandblasted surface – sporty look meets durability
• Tested safety with Safety Level 5

Technical data

• Diameter: 31.6 mm
• Length: 550 mm
• Offset: 15 mm
• Material: Aluminum AL 6061 T6
• Surface: Black, sandblasted
• Safety Level: 5 – suitable for high loads (e.g., for cargo bikes)
• Weight: approx. 480 g

Why the Ergotec Atar 550 is the right choice

With its enormous stability and precision, the Atar 550 is perfect for everyday bikes, e-bikes, trekking bikes, and especially cargo bikes, which often require an extra-long seatpost due to their frame design. If you ride a lot, are occasionally heavily loaded, and value low-maintenance components, this seatpost is exactly what you need. The high-quality material and finely adjustable saddle clamp make it a long-lasting performer.

Scope of delivery

1 x Ergotec Atar 550 31.6 seatpost