If you want to do this yourself, you’ll need to find or measure the ‘bcd’ aka ‘pcd’ measurement of your crank in order to buy the right replacement ring, a new chain and a chain ‘breaker’ tool to remove unwanted links. Take a look at somewhere like Spa Cycles for TA or Stronglight rings, good quality and loads of options.
What else do you need to know? Get a bigger chain ring, try it. Maybe a 48t? Spinny is good for your knees, don’t go mad.
If you want to do this yourself, you’ll need to find or measure the ‘bcd’ aka ‘pcd’ measurement of your crank in order to buy the right replacement ring, a new chain and a chain ‘breaker’ tool to remove unwanted links. Take a look at somewhere like Spa Cycles for TA or Stronglight rings, good quality and loads of options.
What else do you need to know? Get a bigger chain ring, try it. Maybe a 48t? Spinny is good for your knees, don’t go mad.