Dropper seat posts

RAGE-i 2.0

COLOR BLACK

REBORN. TUNABLE PERFORMANCE. MAXIMUM DROP. UNMATCHED VALUE.

The all-new KS Rage-i 2.0 evolves a proven platform with upgrades where it counts: on-bike tuning and optimized drop-to-length ratio, without losing its reputation for reliability and value.

Key Upgrades at a Glance:

  • AIR PRESSURE TUNING VIA SCHRADER VALVE → adjustable return speed
  • THREADED SEAL COLLAR → faster, easier servicing
  • SELF-PURGING SYSTEM → eliminates sponginess and restores full-extension support.
  • OPTIMIZED DROP-TO-LENGTH RATIO → more drop, better fit across frame sizes

Designed to handle demanding trail conditions with smooth, reliable performance, the Rage-i now gives riders something it never had before: adjustability. Thanks to the addition of a Schrader valve under the head, the internal air pressure is no longer fixed. Riders can now fine-tune the return speed of the post, dialing in the feel to match their preferences and terrain. What was once a sealed, non-adjustable system is now a tunable component.

Serviceability also takes a big leap forward. The threaded seal collar replaces the one-piece chassis, making maintenance significantly faster and more straightforward.

Another key improvement is its self-purging system: If air and oil become mixed during use, causing a temporary soft or spongy feel at full extension, the post can restore itself through a simple self-purging process. By cycling the post through its travel a few times by hand, normal performance is quickly recovered. No tools, disassembly or service required.

But the real game changer lies in its reworked proportions. By combining a reduced mast length with a shorter actuator, the new Rage-i delivers more drop relative to its total length. This means:

  • Better fit in smaller or more constrained frames
  • More usable travel for a given insertion depth
  • Improved compatibility with modern bike geometries

In short, you get maximum drop efficiency without compromising fit.

Features
  • Designed for internal frame routing
  • Cylindrical upper clamp nuts simplify installation
  • More vertical head clamp bolt angle increases clamping force
  • Dedicated cartridge architecture is reliable and smooth
  • Lightweight, rotating bottom actuator, reduced actuation force
  • Longer travel options
  • Alloy stanchion
  • Self-purging system
  • Compatible with all KS remotes
  • Remote sold separately
  • Price level: $$$$$

Tech Specs

RAGE-i 2.0 technical drawing
A B C D E
Diameter (mm) Travel (mm) Length (mm) Insert (mm) Weight (g)
30,9 75 280 162 392
100 330 186 442
125 379 211 481
150 429 236 518
170 475 262 559
180 501 278 588
190 521 288 598
210 561 308 630
31,6 75 280 162 405
100 330 186 457
125 379 211 498
150 429 236 538
170 475 262 582
180 501 278 613
190 521 288 624
210 561 308 658
34,9 75 280 162 ??
100 330 186 527
125 379 211 576
150 429 236 628
170 475 262 675
180 501 278 713
190 521 288 724
210 561 308 768

COMPARISON

Comparison with previous model
Features Rage-i Rage-i 2.0
Damper Separated air/oil Combined Air/oil
Air Pressure Non Serviceable Serviceable (Air Valve)
Maintenance Cost Higher Lower
Total/ Insert Length Longer Shorter
End travel pressure Higher Lower
Pressure Resistance Higher Lower

ON THE TRAIL

More drop, less lenght.

The redesigned clamp head and actuator shorten the all-new Rage-i 2.0 by 10.3 mm
at the head and 3 mm at the actuator versus the same-travel Rage-i, delivering a class-leading travel-to-length ratio.

More drop, less lenght.