About Us

GRINFACTOR is a UK based company, who design & manufactures quality leisurewear for the biker & trucker

We do this by cutting out the middleman, having no shop overheads, and selling directly to you via the internet and at UK events

GRINFACTOR are specialists in fun slogan tee shirts, mugs & hoodies

COMING SOON.. Kids tees, adult hoodies & mugs

NEW..GRINFACTOR is now being relaunched & distributed by

Shop4bikers , Chesterfield, Derbyshire S43 2PE
Shop4bikers specialised in selling unique products for the motorcycle & trucker industry