Triumph Bonneville 2005 - 2016 865 Bonneville Speedmaster 55hp

Real standard and upgraded performance figures for the 865 Bonneville Speedmaster 55hp engine in the Triumph Bonneville 2005 - 2016.

Below: measured output for the 865 Bonneville Speedmaster 55hp in the Triumph Bonneville 2005 - 2016, standard vs. remapped, in both horsepower and torque.

Horsepower (HP)Torque (Nm)
Standard5566
Stage 16172
Stage 26475
Make
Triumph
Model
Bonneville
Generation
2005 - 2016
Engine
865 Bonneville Speedmaster 55hp
Fuel type
Petrol

Frequently asked questions

Is Stage 1 tuning safe for the Triumph Bonneville 2005 - 2016 865 Bonneville Speedmaster 55hp?

Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.

How much more power does the 865 Bonneville Speedmaster 55hp make after tuning?

Standard output is 55 HP / 66 Nm; Stage 1 on this engine typically reaches 61 HP / 72 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Triumph Bonneville 2005 - 2016 865 Bonneville Speedmaster 55hp remap take?

Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.

Can the 865 Bonneville Speedmaster 55hp be reverted to its original file?

Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.