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How We Test Ebike Tuning Kits

Written and maintained by the ElectricBikeTuning.com editorial team.

Every kit reviewed on ElectricBikeTuning.com goes through the same process before we publish a recommendation. We don't run a certified test lab or claim a fixed number of bikes tested — what we can tell you plainly is who does the work and how, so you can judge our recommendations for yourself.

Who tests the kits

Testing and guide-writing is done in-house by the ElectricBikeTuning.com editorial team, the same group responsible for the compatibility data and firmware alerts you see across this site since 2016. We don't attribute reviews to a single named reviewer or invented job title — this site publishes as a team, not as an individual byline.

We don't hold or advertise a third-party testing certification. Our credibility rests on being transparent about process, tracking compatibility issues as they happen, and correcting guides quickly when something changes.

Our testing process

1. Sourcing

We buy each kit through the same retail channels as our readers — Amazon, manufacturer stores or authorised resellers. Purchasing as a regular customer means we see the same packaging, instructions and support experience you would.

2. Installation per motor

Each kit is fitted on a test bike matching the motor brand and generation it targets — Bosch, Shimano, Yamaha, Bafang, Brose/QORE, Giant or DJI Avinox — following the same install steps a reader would follow at home.

3. Scoring against 4 criteria

We assess Installation, Discretion, Reliability and Compatibility — the same four criteria described on our About page — and record what we find for each one before publishing a guide.

4. Cross-checking

Findings are checked against manufacturer firmware changelogs, official compatibility statements and verified reports from riders and workshops, so a single test bike is never our only source.

5. Re-testing after updates

When a motor manufacturer ships a firmware update, we re-test affected kits and update the guide — this is how we caught issues such as the Shimano EP801 E299 lock risk and the Bosch 11.13.0 update bricking older SpeedBox versions.

6. Review cadence

Guides are revisited on a rolling basis and whenever we're notified of a firmware release, a new kit version, or a credible reader report that contradicts our current information.

What we don't do

We don't promise a precise top speed in km/h or mph for any kit — real-world results depend on your motor, firmware version and riding conditions, and we won't state a number we can't stand behind. We don't fabricate statistics such as a specific count of bikes or hours tested, and we don't list lab equipment we don't own.

Our scores are not for sale — see our editorial independence and affiliate disclosure for how commercial relationships are kept separate from ratings.

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