Kalkhoff Kalkhoff User Manual

Contents

Kalkhoff Kalkhoff User Manual Manual pdf 59 page image

58 I General User Manual27.3 TyresDue to their function, bike tyres are subject to wear. Thisdepends on how the bike is used and the rider can influ-ence this significantly.› Do not brake so sharply that the wheels lock.› Check the tyre pressure regularly. The maximumpermissible tyre pressure, and normally also theminimum permissible pressure, can be found onthe tyre wall.› If necessary, inflate the tyre up to the specifiedvalue. This reduces wear.› Do not expose the tyres to things that can damagethem such as sunlight, petrol, oil, etc.27.4 Rims in conjunction with rim brakesOwing to the interaction of the rim brake with the rim, notonly the brake pad but also the rim is subject to function-related wear. If fine cracks appear or the rim flangesdeform when the tyre pressure increases, this indicatesincreased wear. Wear indicators on the rim allow its wearcondition to be easily identified.› Check the wear condition of the rim at regular in-tervals (see ➠ Chapter 16.3 "Checking the rims").27.5 Brake padsThe brake pads on rim, roller, drum and disc brakes aresubject to wear, the extent of which depends on how thebike is used. If the bike is ridden in hilly regions, or usedin a sporty manner, the brake pads may need to be re-placed more often. Check the wear condition of the padsregularly and, if necessary, have them replaced by a pro-fessional bike workshop.27.6 Brake discsBrake discs also wear out as a result of intensive braking,or during the course of time. Find out from the manufac-turer of your brakes or your specialist cycle shop aboutthe respective wear limits. You can have worn brake discsreplaced at a professional bike workshop.27.7 Bike chains or toothed beltsThe bike chain is subject to function-related wear the ex-tent of which depends on care/maintenance and how thebike is used (mileage, rain, dirt, salt, etc.).› To increase the service life of the bike, clean thebike chains and toothed belts regularly and lubri-cate the chain.› Have the chain replaced by a professional bikeworkshop once its wear limit has been reached(see ➠ Chapter 20 "Bike chain").27.8 Chainrings, sprocket wheels andjockey wheelsIn bikes with derailleur gears, the sprocket wheels, chain-rings and jockey wheels are subject to function-relatedwear. The extent of the wear depends on care/mainte-nance and how the bike is used (mileage, rain, dirt, salt,etc.).› To increase the service life of the bike, you shouldclean and lubricate these parts regularly.› Have them replaced by a professional bike work-shop once their wear limit has been reached.27.9 Lamps of lighting setBulbs and other lamps are subject to function-related wearand therefore may need to be replaced.› In case you need to replace damaged bulbs, alwayscarry spare ones with you.