Advantages and disadvantages Bicycle brake

aluminium rim worn-out v-brakes. outer wall worn through , wheel dangerously weakened. disadvantage of rim brakes.

rim brakes inexpensive, light, mechanically simple, easy maintain, , powerful. however, perform relatively poorly when rims wet, , brake unevenly if rims warped. because rims can carry debris ground brake pads, rim brakes more prone clogging mud or snow disc brakes (where braking surfaces higher ground), particularly when riding on unpaved surfaces. low price , ease of maintenance of rim brakes makes them popular in low- mid-price commuter bikes, disadvantages alleviated unchallenging conditions. light weight of rim brakes makes them desirable in road racing bicycles.

rim brakes require regular maintenance. brake pads wear down , have replaced. , before wear out completely, position may need adjusted wear. because motion of brakes not horizontal, pads may lose centering wear, causing pads wear unevenly. on longer time , use, rims become worn. rims should checked wear periodically can fail catastrophically if braking surface becomes worn. wear accelerated wet , muddy conditions. rim brakes require rims straight (not out-of-round or warped). if rim has pronounced wobble, braking force may intermittent or uneven, , pads may rub rims when brake not applied.

during braking, friction surfaces (brake pads , rims) experience thermal heating. in normal use not problem, brakes applied limited force , short time, heat dissipates surrounding air. however, on heavily laden bike on long descent, heat energy may added more can dissipate causing heat build-up, may damage components , cause brake failure.

a ceramic coating rims available may reduce wear , can improve both wet , dry braking. may reduce heat transfer inside of rims because thermal insulator.