Considering the heaviest forks available are 1.2kg the weight probably wont affect you. The main thing is strength though and as you do bigger/better moves you'll need it!
Its not bad for the money but if you wait until youre validated you could get a better spec in the for sale section. Also check out tartybikes :http://www.tartybikes.co.uk/product.php?pr...;category_id=10