August 2025 — Brose becomes QORE Drive³: Yamaha completed its acquisition of the Brose e-bike division on 1 August 2025. The motor range is now sold under the QORE Drive³ brand inside the Yamaha ecosystem. The Berlin engineering base and teams are unchanged. Technical specs identical: 90–95 Nm, up to 600 W, ~2.9 kg, belt drive, very quiet. All existing Brose-compatible tuning kits remain functional.
Brose / QORE eBike Tuning — Drive³ Chip Guide 2026
Brose Drive³ motors — now rebranded QORE Drive³under Yamaha since August 2025 — power the Specialized Turbo Levo SL and select Focus and Riese & Müller models. This guide covers tuning kit compatibility across all Drive variants. Critical note: Polini Hi-Speed is incompatible with Drive S and S-Mag. Off-road use only.
Brose / QORE Drive³ tuning kits — full comparison
| Kit | Install type | Speed display | Detection risk | Price (approx.) | Buy |
|---|---|---|---|---|---|
| SpeedBox 3.0 | Internal (wired) | Real speed | Low | £139-179 | Buy → |
| PearTune MSO 4.0 | Internal (wired) | Real speed | Very low | £149-189 | Buy → |
| SpeedFun Furious Evo | Internal (wired) | Real / halved | Low | £129-169 | Buy → |
| Polini Hi-Speed | Internal (wired) | Real speed | Medium | £109-139 | Buy → |
| BadassBox 4 | External (magnetic) | Halved on console | Very low | £130-145 | Buy → |
Brose becomes QORE Drive³: what changes (and what does not)
Yamaha completed its acquisition of the Brose e-bike division on 1 August 2025. The motor range is now sold under the QORE Drive³ brand within the Yamaha ecosystem. The operational base remains in Berlin, the engineering teams are unchanged, and the motors use the same hardware.
What stays the same: technical specifications (90–95 Nm, up to 600 W, ~2.9 kg), the characteristic belt-drive transmission, the very quiet acoustic signature, and compatibility with all existing tuning kits. Bikes delivered with the QORE Drive³ badge use the same hardware as previous Brose generations. Availability of new tuning kits may be limited as manufacturers validate against the latest Drive³ variants — check each kit's compatibility page before ordering.
Brose / QORE Drive³ motor range
Brose (a German group founded in 1908) is one of the quieter players in the e-bike market but equips premium brands. The Drive range spans six variants by intended use.
| Motor | Torque | Voltage | Use | Notes |
|---|---|---|---|---|
| Drive C | 50 Nm | 36V | Urban / city | Compact, very quiet |
| Drive T | 70 Nm | 36V | Trekking | Versatile all-rounder |
| Drive TF | 70 Nm | 36V | Trekking / speed | Lighter variant |
| Drive S | 90 Nm | 36V | Sport / MTB | High performance — Polini incompatible |
| Drive S-Mag | 90 Nm | 36V | Premium sport | Magnesium casing — Polini incompatible |
| Drive H | — | 36V | Cargo / utility | Cargo-rated motorisation |
| Drive 3 Peak / QORE Drive³ | 95 Nm | 48V | High-perf. 2025 | New gen, rebranded QORE — limited kit data |
Which bikes use Brose / QORE Drive³ motors?
Key brands using Brose motorisation include: Specialized Turbo Levo SL (the lightweight full-suspension MTB version), select Focus models, and Riese & Müller premium cargo and commuter bikes. Older models from Bulls, Rotwild, and Devinci also used Brose motors. Always confirm the exact motor variant from the label on the motor casing before ordering a kit.
Kit details
SpeedBox 3.0 — the reference choice
SpeedBox 3.0 displays real speed on the console and activates the Walk Assist function beyond the legal limit. Installation takes 30–45 minutes. Compatible with Drive C, T, TF, S, and S-Mag. Activation via a dedicated button. Lifetime warranty on purchases via the official store.
PearTune MSO 4.0 — lowest detection risk
PearTune MSO 4.0 is the Brose kit offering the highest assisted speed ceiling available. The Chip Lock feature makes detection during dealer diagnostics virtually undetectable. Compatible with Drive C, T, TF, S, and S-Mag.
SpeedFun Furious Evo — smooth transition
The SpeedFun uses a progressive signal-division approach: beyond a set threshold it gradually reduces the speed signal rather than cutting it abruptly, which produces a smoother power taper and is less conspicuous in use. Compatible with Drive C, T, TF, and S.
Polini Hi-Speed — important incompatibility warning
An affordable entry-level option for Drive C, T, and TF. Do not install on Drive S or S-Mag — the architecture of these high-torque motors causes system errors and random cut-outs with the Polini. Detection risk is also higher than SpeedBox or PearTune. Not recommended for Drive 3 Peak.
BadassBox 4 — compatible with all Brose / QORE Drive³
The only tuning solution confirmed compatible with the full Brose range, including the Drive 3 Peak / QORE Drive³. External magnetic installation, no motor opening, no tools, around 15 minutes. No electronic contact means zero traces in the motor logs. The console shows half of real speed; the Boost Buddy app displays the actual figure.
Legal notice — UK
UK law (Highway Act 1988 / EAPC regulations) limits electrically assisted pedal cycles to 15.5 mph on public roads. Tuning kits that remove this limit are off-road use only— private land with the landowner's permission. Never ride a tuned ebike on a public road, pavement, or cycle path.