Mine hardly ever comes on, even in on the rare occasions the British summer gets into the mid-twenties. It only cuts in when riding in heavy traffic, or on a long slow stretch of off-road riding.

I'd say you'd be OK provided you're not riding in stop start traffic. Out on the open road the air flow through the radiator will be more than enough to keep things cool. Keep an eye on the warning light and pull over immediately should it come on.

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