Ax-lightness engage Operations Instructions download pdf (Page 23)

Notes on how to mount rear wheels

Besides the front thru axle systems, there are also

rear thru axle systems (a). This system combines

extreme stiness with light weight.

To remove the rear wheel release the axle (with an

Allen key or the RWS lever, depending on the system)

and pull it out, before removing the rear wheel in the

usual way.

Make sure not to insert the axle (b) into the hub be-

fore mounting the rear wheel.

Perform the rear wheel mounting in the usual man-

ner. Thanks to the axle guides (c) the rear wheel is

automatically in its correct position and requires no

further adjustment. Once you have mounted the rear

wheel, insert and tighten the axle (d).

The manufacturers of thru axles deliver

their products with detailed instructions.

Read them carefully before removing the

wheel or doing any maintenance work.

Tyres, inner tubes, rim

tape, inﬂation pressure

The tyres should provide grip and traction. At the

same time they should run smoothly and enhance

the rider’s comfort by absorbing small shocks. Both

the rolling friction and the grip depend on the nature

of the tyre carcass, the rubber compound and the

tyre tread. Your AX-Lightness and engage dealer will

be pleased to help you choose from the numerous

types of tyres.

If you want to mount a new tyre, you need to observe

the sizing system and the actual size of the old tyre.

The latter is specied in two dierent units on the

side of the tyre. One of the sizes is the standardised

size in millimetres which is more precise; for road rac-

ing bicycles (e): the number sequence 23-622 means

that the tyre is 23 mm wide when fully inated and

has an inner tyre diameter of 622 millimetres. The oth-

er size is indicated in inches (e.g. 23x7/8 or 700x23c).

For mountain bikes (f): the number sequence 57-559

means that the tyre is 57 mm wide when fully inated

and has an inner tyre diameter of 622 millimetres. The

other size is indicated in inches (e.g. 26x2.25”).

Tyres must be inated to the proper ination pres-

sure (g) to provide an optimal compromise between

smooth running and riding comfort. Properly inated

tyres are also more resistant to punctures. An insuf-

ciently inated tyre can easily get pinched (“snake-

bite”), when it goes over a sharp kerb.

The air pressure recommended by the manufactur-

er is given on the tyre side (h) or on the type label.

The lower of the two pressure specications makes

for better cushioning for lightweight riders and is

therefore best for cycling on a rough surface. Rolling

resistance on level ground decreases with growing

pressure, but so does comfort. Highly inated tyres

are therefore most suitable for heavy riders and for

riding on tarred roads.

42 43

Rims - Wheels

d h

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Ax-lightness engage Operations Instructions Page 23

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