Welcome to, home to the UK's largest, most comprehensive range of gear mech/derailleur hangers 

*Update* 25th May 2020

During these uncertain times, we are still working here at GMH, trying to help you, and getting orders sent out Monday to Friday


We are aware that the postal service is running at full stretch, on limited staff, due to Covid19

and we know that post can take anywhere from 2 days to 10 days in certain areas of the UK


 We will not tolerate abuse from customers over Current Covid19 delivery times


New_web_page_GMH are committed to getting you back on your bike as quickly as possible, we do that by providing high quality customer service, and by stocking over 850 different types of bicycle gear mech/derailleur hangers.

PILO Chainrings

GMH / PILO Water Bottle          GMH/PILO Water Bottle    

GMH / PILO Engineering - Tacx Shiva Water Bottles now in stock, enjoy some GMH Merch !