What isCornering ABS?
A rider aid that adjusts ABS brake-pressure control according to the motorcycle's calculated dynamic state, using an IMU alongside wheel-speed and braking data.
Simplified animation — not to scale.
In plain English
Cornering ABS is a rider aid, not a guarantee. It uses an inertial measurement unit (IMU) alongside wheel-speed and braking data to estimate what the motorcycle is doing, and adjusts ABS brake-pressure control accordingly. It works within physical and model-specific limits, and it cannot create grip or ensure that the motorcycle will not run wide, slide or fall.
How it works
An IMU measures linear acceleration and angular movement. From that data, together with wheel-speed sensors and brake-pressure information, the ABS control unit estimates the motorcycle's lean, pitch and other dynamic conditions. It then adjusts how quickly and how strongly brake pressure is modulated in response to the rider's inputs. The system's decisions depend on the calculated dynamic state, tyre and surface grip, and the manufacturer's calibration — not on lean angle alone.
Signs of trouble
- ⚠Persistent ABS or IMU warning light
- ⚠Manufacturer fault message on the dash
- ⚠Abnormal ABS behaviour (e.g. very early or very harsh cycling) during ordinary riding
- ⚠Fault code logged after a crash, service or IMU replacement
What it helps with
- •Adjusting brake-pressure control to the motorcycle's estimated dynamic state, including when leaned over.
- •Reducing the risk of a wheel locking during braking in a wider range of conditions than standard ABS.
- •Working with traction control and other rider aids where fitted.
What it cannot do
- •It cannot create tyre grip.
- •It cannot guarantee that the motorcycle will not run wide, slide or fall.
- •It cannot compensate for excessive corner-entry speed or poor line choice.
- •It cannot overcome contaminated, damaged or unsuitable surfaces.
- •It operates only within the manufacturer's calibration and physical limits.
What normal intervention may feel like
- •Pulsing or firmness at the brake lever under hard braking, similar to standard ABS.
- •Braking effort that feels more progressive when leant over than a standard ABS system.
- •A brief flash of the ABS indicator on the dash.
What the rider should do
- •Brake progressively and set the motorcycle up before the corner where possible.
- •Judge corner entry speed on available grip, not on trust in the system.
- •Never test the system by intentionally braking hard in a corner.
- •Have persistent warning lights or fault messages investigated by a qualified motorcycle technician.
How cornering ABS varies between motorcycles
- •IMU capability and sensor arrangement differ between manufacturers.
- •Some systems combine cornering ABS with lean-sensitive traction control and other aids.
- •Different ride modes may change intervention thresholds.
- •Some models allow the rider to reduce ABS intervention for track or off-road use.
What affects the repair?
We don't publish a generic price for this part because a responsible estimate needs a named motorcycle and a recent quote. These are the factors a qualified technician will weigh up.
- •Diagnosis: intermittent or system-wide faults may need dealer-level tools before the actual part can be identified.
- •Accessibility: some parts are quick to reach; others require significant fairing, tank or engine-cover removal.
- •Model differences: prices and labour times vary widely between manufacturers and specification levels.
- •New vs used: a genuine OEM part fitted at a franchised dealer costs more than a serviceable used or aftermarket part.
- •Calibration / coding: some parts require post-fit calibration, coding or a road test, which adds labour time.
Sources and further reading
Last reviewed: July 2026