Before i post about my Langster build (its the best), i thought i would make a point of saying how crap the EAI superstar sprocket is, especially at £32. It basically turned my bike into a tractor, chainline perfect, several chains and chainrings...still noisy as shit....replaced with a phil wood.....instant silence! Maybe i was unlucky but i won't be buying EAI sprockets again even with the fancy pouch you get!