K-Tech RAZOR-R Shock Absorber Yamaha YZF-R7 (2021-2026) 279S-021-270-XXX

Unlock the true handling potential of your Yamaha YZF-R7 every time you ride, whether carving backroads or pushing on track days. The K-Tech RAZOR-R is an OEM-replacement shock absorber engineered specifically for the YZF-R7 (2021–2026), delivering a measurable step up in stability, traction and rider confidence without requiring a full suspension overhaul.

Key Features

• 12-click adjustable compression damping for fine-tuned control over bump absorption and mid-corner support
• 12-click adjustable rebound damping to maintain composure through rapid direction changes and successive braking zones
• Adjustable spring preload and length to dial in ride height precisely for your weight and riding style
• Nitrogen (N2) charge at 10 bar prevents cavitation and ensures consistent damping performance even under sustained hard use
• 46-140 series spring delivers improved traction and stability over the standard unit
• Direct OEM fitment — installs using existing mounting hardware with no modifications required
• Available in weight-specific spring rates covering 65–125 kg rider weight for an accurate, personalised setup from day one

Everyday Usability and Real-World Value

What sets the RAZOR-R apart from more exotic units is how approachable it is to live with. The part number 279S-021-270-XXX suffix changes with the spring rate selected at checkout, so every rider receives a shock calibrated to their actual weight rather than a generic compromise. Whether your R7 is your daily sport ride or a weekend enthusiast machine, the ability to adjust compression, rebound and preload at the roadside means the suspension always suits the conditions — loaded solo, two-up, or on a cold morning commute.

The upper eye mount measures 30.00 mm wide with a 10.00 mm bolt diameter; the lower fork mount measures 25.00 mm wide with a 10.00 mm bolt diameter. Total body length is 310.00 mm with a length tolerance of -0 mm / +10 mm, and the unit offers 55.00 mm of travel. The RCPU housing diameter is 35.00 mm and the RCU rod diameter is 14.00 mm, with 11 mm of standard preload — dimensions matched precisely to the YZF-R7 subframe geometry for a clean, rattle-free installation.

Build Quality and Engineering

K-Tech suspension is developed and manufactured in the UK, with components used across British Superbike and World Superbike paddocks. The RAZOR-R brings that same engineering discipline into a unit priced and specified for road-legal machines. The nitrogen gas charge eliminates the oil foaming that degrades damping consistency in stock units under repeated compression cycles, meaning the shock behaves identically on lap one and lap twenty.

Fitment and Compatibility

This shock absorber is designed as a direct replacement for the following model:

• Yamaha YZF-R7 — all variants, model years 2021, 2022, 2023, 2024, 2025, 2026

Select your rider weight option at checkout to receive the correctly rated spring. Installation must be carried out by an authorised K-Tech Service Centre; specialist tooling and technical knowledge are required to ensure full performance and safety of the unit.

Specifications