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The SQlab 612 Ergowave Active 2.1 S-Tube is a lightweight, ergonomic race saddle for road and MTB, offering perineal relief, power transfer, and adaptive active technology.
The SQlab 612 Ergowave Active 2.1 S-Tube is a lightweight, ergonomic race saddle for road and MTB, offering perineal relief, power transfer, and adaptive active technology.
Sq Lab

SQlab 612 Ergowave Active S-Tube 2.1 Saddle in Black

£133.00 £140.00 5% off
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Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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In the unlikely event that you are not satisfied with your purchase please feel free to return your items within 90 days of the purchase date for a full exchange or refund. Any item (excluding food, underwear or e-gift vouchers) can be returned to us for any reason within 90 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase.

It is recommended that you use a recorded delivery service or return to a store to ensure your items are received by us. We cannot assume responsibility for items that are lost in transit back to us.




Terms & Conditions

Items must be returned in their original packaging and unused. Refunds will be issued once the product(s) have been received and inspected.

Click & Collect customers can buy with confidence knowing that they can review the item before deciding whether it is right for you before leaving the store. Should you decide it's not right for you, it can be conveniently exchanged or refunded straight away, or you still have up to 90 days to return it if you are still unsure.

Please note:
1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £50 for collection (£100 from Northern Ireland). If you do not have the original box in usable condition, we will charge you an additional £15 to provide one.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase.

We are unable to offer a refund without a valid proof of purchase.

SQlab 612 Ergowave Active S-Tube 2.1 Saddle in Black

Season:All Year Round

Brand:Sq Lab

Code:239612WaveAct21STube

The SQlab 612 Ergowave Active S-Tube 2.1 Saddle is purpose-built for road cyclists and MTB racers who demand both comfort and performance. Its signature wave-shaped profile and raised rear section provide optimal support and pressure distribution, boosting pedalling efficiency and long-distance comfort.

The lowered nose and central relief channel reduce pressure on sensitive areas for both men and women, allowing for an aggressive yet sustainable riding position. With a 63% relief rating, this saddle balances support with freedom of movement, making it ideal for racing and endurance events.

Equipped with the latest Active 2.1 technology, the saddle adapts naturally to your pedalling motion. The system is lighter, softer, and more efficient than before, easing strain on the spine and reducing pressure on the sit bones. Adjustable via three elastomers, it allows riders to fine-tune lateral movement to suit their comfort and style.

Key Features:

  • Ergowave profile: Wave shape with raised tail for stability and power transfer
  • 63% perineal relief: Lowered nose and central dip reduce pressure points
  • Active 2.1 technology: Softer, lighter, and adjustable pelvic movement system
  • Superlight foam padding: Race-tuned damping without excess bulk
  • S-Tube rails: Lightweight and strong for competitive riders
  • Road & MTB race ready: Built for performance in aggressive riding positions
  • Unisex fit: Designed around sit bone measurement, not gender|
  • Length: 275 mm
  • Widths & weights:
    • 12 cm: 211 g
    • 13 cm: 212 g
    • 14 cm: 215 g
    • 15 cm: 229 g
    • 16 cm: 234 g
Sizing Information
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