Upgrades and modifications • English Conversation Questions

What are some common upgrades people make to their bicycles?
What modifications can be made to a bicycle to make it better for commuting?
Have you ever upgraded the brakes on your bike? What kind of difference did it make?
What’s your favorite upgrade you’ve made to your bike?
Do you prefer to buy pre-built bikes or build your own custom bike with upgrades and modifications?
What are some popular modifications for mountain bikes?
How can you make a road bike more comfortable for long rides?
What are some popular handlebar options for touring bikes?
How can you upgrade the gearing on a bike to make it better for hills?
What kind of modifications can be made to a bike for better aerodynamics?
Have you ever added accessories to your bike, like a rack or fenders?