If they’re striking the rim flat, carefully adjust them so that the front touches before the rear. If the pads are several years old, replace them. Solution: For quiet operation, pads must be in good condition and “toed-in,” which means that the front of the pads contacts the rim before the rear. This can be caused by the brake pads vibrating against the rims. It is a good idea to do one at a time since they are often dedicated to the top or bottom position and you don’t want to get them mixed up. If it is still squeaking, you’ll need to remove them, take them apart and grease each part before reassembling (I like this grease on Amazon). Wait a few minutes for the lube to penetrate, and then wipe off any excess. Solution: Rest your bike on its side and apply a few drops of oil between the pulleys and side plates to silence them. The faster you pedal, the louder and faster the pulley squeaks. ( We have an article here that gives some suggestions on how to maintain your chain) Derailleur pulleys Always wipe off the excess to minimize sludgy build-up. Then keep the chain quiet by lubing it every 2 weeks. On extra dry ones, it may take a while for the substance to penetrate and silence the noise. If the rollers are dry and shiny, apply drip or spray lube. Other issues and solutions may be to tighten loose bottle cages, bend cages to grip bottles more firmly, make sure seat bag tools can’t hit each other and/or strike the seat post, and stuff foam helmet pads into the handle of a frame-fit pump to silence the rebound spring. To tighten Sun Tour and older Shimano models, remove the wheel, place a chain whip ( like this one from Park Tools) on the smallest cog, and turn it clockwise. This also works for Campy cogs using a Campy-compatible lockring tool (Amazon link for that one is here). Use a Shimano cassette lockring tool (like this one on Amazon) and a large adjustable wrench to tighten Shimano cassettes by tightening the lock ring. Solution: Feel for play by trying to move the cogs laterally with your fingers. Solution: Adjust the headset to remove the play and tighten the headset so it can’t loosen again. Play in the headset bearings allows the fork to rattle when you ride over bumps. Placing O-rings on or beneath the valve nuts to silence them and prevent water entering the rims may help and or slipping a rubber O-ring sleeve over the bottom of the valve to prevent it from vibrating against the rim. The tires and tubes will work fine without them. Solution:Snug them, but don’t over tighten or you’ll have trouble getting them off when you need to repair a flat tire. What to look for and how to fix it Loose Presta Valve Nuts
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January 2023
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