K-Tech DDS Lite rear shock absorber for Yamaha YZF-R1/M RN32 RN49 RN65 2015–2026 360° — drag me
02 · Data & docs

The facts.

Technical data
BrandK-Tech
ModelDDS Lite
Part Number245-015-270-020
FitmentYamaha YZF-R1/M RN32, RN49, RN65 (2015–2026)
Length318 mm (tolerance –3/+3 mm)
Stroke62 mm
Spring Series55–155
Adjustability4-way: compression (32 clicks), rebound (32 clicks), manual preload, length
Upgrade PathUpgradeable to Pro specification
DescriptionThe whole story

The K-Tech DDS Lite is a precision-engineered rear shock absorber built specifically for the Yamaha YZF-R1/M in RN32, RN49 and RN65 guise, covering the full 2015–2026 production run. Sharing the same core DDS components as the flagship Pro version, it delivers four-way adjustability and genuine K-Tech performance at a more accessible price point — with a clear upgrade path to Pro specification whenever you are ready.

Key Features

  • Four-way adjustability — compression, rebound, manual preload and length — gives precise control over chassis geometry and ride character on road or track
  • 32 clicks of compression damping adjustment for fine-grained tuning across a wide range of riding conditions
  • 32 clicks of rebound damping adjustment to maintain optimal tyre contact and stability under braking and corner exit
  • Manual spring preload adjustment lets you dial the shock to your exact weight and riding style without specialist tools for every-day changes
  • Length adjustment enables fine-tuning of ride height and steering geometry to suit track configuration or personal preference
  • CNC-machined components throughout for exceptional dimensional accuracy, rigidity and long service life
  • DDS technology with integrated potentiometer mounting points — fully upgrade-compatible from Lite to Pro specification at any time

Performance Without Compromise

The DDS (Dual Damping System) architecture at the heart of this shock has been proven across K-Tech's range from club racing to World Superbike paddocks. The Lite variant omits the hydraulic preload adjuster and the dedicated bypass valve found on the Pro, but the fundamental damping quality, the 35 mm body diameter and the 12 mm shaft remain identical. If your riding evolves, upgrading to Pro spec requires no new shock — the internals can be rebuilt to full Pro specification by any authorised K-Tech Service Centre.

The 62 mm stroke and 318 mm overall length (tolerance –3/+3 mm) are matched precisely to the R1 and R1M linkage geometry across all three chassis codes, so the shock installs without modification and puts the suspension in the correct operating window from the first ride.

Recommended Setup Baseline

K-Tech engineers have established a starting-point configuration for this application: 12 clicks compression, 12 clicks rebound and 12 mm preload. These values keep the shock operating in the middle of its adjustment range, giving equal scope to soften or firm the damping as conditions demand. A wide selection of spring rates from the 55–155 series is available to match rider weight correctly before any fine-tuning begins.

Installation Note

For maximum safety and to realise the full performance potential of this shock, K-Tech recommend fitting by an authorised K-Tech Service Centre. Installation requires specialist tools and techniques.

Fitment and Compatibility

This shock absorber fits the following models:

  • Yamaha YZF-R1 RN32 (2015–2016)
  • Yamaha YZF-R1M RN32 (2015–2016)
  • Yamaha YZF-R1 RN49 (2017–2020)
  • Yamaha YZF-R1M RN49 (2017–2020)
  • Yamaha YZF-R1 RN65 (2020–2026)
  • Yamaha YZF-R1M RN65 (2020–2026)

Specifications

Part Number 245-015-270-020
Length 318 mm (tolerance –3/+3 mm)
Stroke 62 mm
Force 95 N / 5.00 bar
Body Diameter (RCU) 35 mm
Shaft Diameter (RCU) 12 mm
Upper Mount Eye | Width: 32 mm | Bolt diameter: 10 mm
Lower Mount Eye | Width: 25 mm | Bolt diameter: 10 mm
Spring Series 55–155
RCU Adjustment Travel 4 mm
Recommended Compression 12 clicks
Recommended Rebound 12 clicks
Recommended Preload 12 mm
FitmentWhich bikes this fits
  • Yamaha YZF-R1/M RN32, RN49, RN65 (2015–2026)
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08 · Paddock

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