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The SQlab 612 Ergowave R S-Tube Saddle is a short, narrow, and ultra-light performance saddle. Its Ergowave shape, S-Tube rails, and minimal padding maximise comfort, pedalling efficiency, and power transfer.
The SQlab 612 Ergowave R S-Tube Saddle is a short, narrow, and ultra-light performance saddle. Its Ergowave shape, S-Tube rails, and minimal padding maximise comfort, pedalling efficiency, and power transfer.
Sq Lab

SQlab 612 Ergowave R S-Tube Saddle in Black

£133.00 £140.00 5% off
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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 R S-Tube Saddle in Black

Season:All Year Round

Brand:Sq Lab

Code:229612WaveRSTube

The SQlab 612 Ergowave R S-Tube Saddle is engineered for road and MTB racers seeking maximum efficiency and comfort in a lightweight, narrow saddle. Starting at just 165 g, this saddle is shorter, narrower, and lighter than most 612 models, delivering race-ready performance for both climbs and sprints.

Its raised rear section enhances grip and power transmission, while the narrow mid-section and slim nose provide extra legroom for an aggressive pedalling position. The proven Ergowave shape relieves soft tissue pressure, helping maintain optimal posture and reducing energy loss during intense riding.

The S-Tube rails and weight-optimized shell provide longitudinal stiffness with lateral flex for comfort, while the super-light padding and durable, non-slip cover ensure a secure and comfortable ride. The saddle’s design works seamlessly with SQ-Short One12 cycling positions, making it ideal for competitive riders looking for peak performance.

Key Features:

  • Race-ready design: Short, narrow, and ultra-light from 165 g
  • Ergowave profile: Raised rear for grip and perineal relief
  • S-Tube rails: Lightweight and strong, designed for optimal flex
  • Optimised shell: Longitudinally stiff, laterally compliant for comfort
  • Narrow nose & mid-section: More legroom for aggressive pedalling
  • Minimal super-light padding: Closed-cell foam for performance without bulk
  • Lightweight, abrasion-resistant cover: Non-slip for secure seating
  • Road & MTB race focused: Perfect for uphill and straight-line power transfer
  • Unisex fit: Designed around sit bone measurement
  • Length: 252 mm
  • Widths & weights:
    • 12 cm: 165 g
    • 13 cm: 168 g
    • 14 cm: 170 g
    • 15 cm: 175 g
Sizing Information
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