The facts.
| Brand | K-Tech Suspension |
|---|---|
| Part number | 25K-028B |
| Inner diameter | 43 mm |
| Fitment | KTM RC 390 (2014–2025) |
| Installation | Mounts on fork tube in situ |
| Scope of delivery | 1x travel indicator |
DescriptionThe whole story▼
Knowing exactly how much fork travel you are using is the foundation of any serious suspension setup. The K-Tech travel indicator 25K-028B fits directly onto the KTM RC 390 fork leg — installed while the fork remains in the bike — and gives you an immediate, accurate read of consumed fork stroke so your chassis tuning decisions are grounded in real data rather than guesswork.
Key Features
- Designed specifically for the KTM RC 390 (2014–2025), ensuring a precise 43 mm inner-diameter fit with no modification required.
- Mounts on the fork in its installed position, so you can record travel data after a road or track session without removing the front wheel or fork legs.
- Manufactured by K-Tech Suspension, one of the most trusted names in professional-level fork and shock development, whose components are used across World Superbike and British Superbike paddocks.
- Provides the critical feedback needed to set correct sag, spring rate and damping — essential groundwork before any fine tuning is attempted.
- Simple, repeatable measurement process: reset the indicator before a session, read the high-water mark after, and adjust accordingly.
Why a Travel Indicator Matters
Fork travel data is the starting point for every suspension change you make. Without it, adjusting compression or rebound damping is little more than educated guessing. Once you know your used travel under real riding conditions, you can identify whether the spring rate is too soft, whether the fork is topping out, or whether you have headroom to run a lower ride height for sharper turn-in. The K-Tech 25K-028B makes this process straightforward, repeatable and accessible whether you are dialling in a track-day setup or optimising road comfort.
Build Quality
K-Tech components are engineered to the tolerances demanded by professional racing teams. The travel indicator is produced to the same standard: clean, precise dimensions that seat firmly on the fork tube without marking or damaging the surface. The 43 mm internal diameter matches the RC 390 fork specification exactly across the full 2014–2025 model range.
Fitment & Compatibility
This travel indicator is confirmed to fit the following motorcycle:
- KTM RC 390 — model years 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Fork inner diameter: 43 mm. Fits the fork in its installed position — no wheel or fork removal necessary.
Specifications
| Attribute | Detail |
|---|---|
| Manufacturer | K-Tech Suspension |
| Part number | 25K-028B |
| Inner diameter | 43 mm |
| Fitment | KTM RC 390 (2014–2025) |
| Scope of delivery | 1x travel indicator |
| Installation position | Fork tube, in situ (fork installed in the motorcycle) |
What's includedEverything in the box▼
- 1x travel indicator
FitmentWhich bikes this fits▼
- KTM RC 390 (2014–2025)
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