Page 85 - Urban Jungle mode d'emploi_EN_HD

WHEELS AND TYRES
The wheel consists of the hub, the spokes and the rim. The tyre is mounted onto the rim so that it encases the tube in the case of the most common system, i.e. the clincher or folding tyres. There is a rim tape running around the rim well (a) to protect the sensitive tube against the edges of the rim trough, which are often sharp.
Another common system comprises tubeless tyres which require specific rims without boreholes and firmly screwed valves.
The wheels are subjected to considerable stress through the weight of the rider and any carried luggage as well as through bumpy road surfaces and terrain.
Although wheels are manufactured with great care and delivered accurately trued, spokes and nipples can lose a little tension on the first kilometres. Ask your URBAN JUNGLE dealer to check and true up the wheels after you have bedded them in over about 100 to 300 kilometres or 5 to 15 hours of use.
After the bedding-in period, check the wheels regularly. It will, however, rarely be necessary to retighten the spokes (b).
NOTICE
Truing (retruing) wheels is a difficult job which you should definitely leave to your URBAN JUNGLE dealer.
SAFETY INSTRUCTIONS
Tubeless tyres will not be considered any further in the following. Read the manuals of the rim manufacturer, the tyre producer and ask your dealer for advice.
NOTES ON TYRES, INNER TUBES, RIM TAPE, INFLATION PRESSURE
The tyres should provide grip and traction. At the same time they should run smooth and enhance the rider’s comfort by absorbing small shocks. Both the rolling friction and the grip de- pend on the nature of the tyre carcass, the rubber compound and the tyre tread. Your URBAN JUNGLE dealer will be pleased to help you choose from the numerous types of tyres (c).
a
b
c
ORIGINAL OPERATING INSTRUCTIONS | 85 |