As bike riders, that moment when cold, dank winter begins to recede and the sun takes over is always a special one. For many of us it's cause for rejoicing, particularly in the UK, where the big glowing orb in the sky chooses to absent itself in favour of wet grimness far too often.
However, while a lot of us get to watch the weather forecast warming up with a mental mini fist-pump, the rest are not quite so lucky. Forget the temperature – for hayfever sufferers the pollen count is also a key metric that can turn what otherwise looks like a beautiful day for riding into a nightmare no-go.
