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Racework

RK90 Ultralight Bicycle Saddle

RK90 Ultralight Bicycle Saddle

$59.99 USD
$59.99 USD
Sale Sold out
Shipping calculated at checkout.
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RK90 Ultralight Bicycle Saddle

$59.99 USD
$59.99 USD

Return Policy

Sometimes, a product may not fully meet your expectations. That's why we offer a straightforward return, allowing you to shop with confidence and focus on your next ride.

Return Conditions

  • Time Frame: Return requests must be submitted within 45 days of your order date.
  • Condition: Items must be in new, unused condition with all original tags, packaging, and accessories included.
  • Proof of Purchase: A valid receipt or order number is required for all returns and exchanges.

Free worldwide shipping

To show our appreciation for your choice to ride with us, we offer free worldwide shipping on all orders.

Fast bike. Sharp fit. Zero fluff.
The RK90 is a 273 gram saddle, plus or minus 10 grams, built for high cadence road days, MTB laps, and long, low TT positions without the dead weight feel. Big center cutout. Slim nose. Race ready shape.

Key Features

  • Ultralight build: 273 grams, plus or minus 10 grams

  • Size: 270 x 140 mm platform for a locked-in, efficient stance

  • Full-length center cutout for pressure relief in drops and aero positions

  • Chrome-moly steel rails for durable clamping and hard use

  • High-grade EVA padding that supports without turning mushy

  • Nylon cover for grip and wear resistance

  • Engineered plastic base for stiffness where it counts

  • Four colorways: Black, Black with Red speckle, Black with Blue speckle, Black with Green speckle

Recommended Use

Run it on MTB, road, TT, tri, and trainer builds where grams matter and the position stays forward.
Best for riders chasing a clean pedal stroke, stable sit bone support, and cutout driven relief during long efforts.

Bottom Line

Cut weight. Keep pressure off. Hold speed.  

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Built for hard miles

Fast shipping, easy exchanges, and rider-first support from checkout to install, so the experience feels as clean as the gear.

Why buy it here

  • Fast, Reliable Delivery

    Tracked shipping, clear ETAs, and packaging that shows up ride-ready

  • Easy, No-Stress Exchanges

    Wrong size or fit? Quick swaps and simple returns, so you can upgrade with confidence.