Check out some other places like sports bike shop, there's a massive range of helmets under £200.
Up until a couple of weeks ago I was using an MT Thunder, decent little helmet for the price and scores well in the sharp tests if that's your thing.
I really like the alpinestars textile jackets, but I can't seem to find any shops around my area that sells them...
I went to sharp test and found this helmet to have better protection than some of £300 mark helmets
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http://sharp.direct.gov.uk/testsratings/nitro-aikido
How?