Ax-lightness engage Betriebsanleitung PDF herunterladen (Seite 49)

With carbon steerer tubes, make sure the inside of

the tube is supported by a suitable expander-cone

mechanism for adjusting the headset. AX-Lightness

and engage recommend the gumgum from Tune for

AX-Lightness forks.

Be sure to observe the chapter “Fork – Headset” or

the instructions given in the user manual of the fork

manufacturer before tightening the stem.

Start by tightening both clamping bolts alternately

and then by using a high-quality torque wrench

(a).

Start with a standard torque wrench and a minimum

torque value of 3 Nm.

Check the secure clamping of the AX-Lightness and

engage stem by holding the front wheel between

your knees and trying to turn the handlebars relative

to the front wheel

(b).

In case the stem clamping is not tight enough, in-

crease the torque value to 4 Nm.

In case the AX-Lightness and engage stem is still not

tight enough, dismount the stem and once again ap-

ply some AX-Lightness carbon assembly paste (c) on

the fork steerer tube and the inside of the stem.

If the AX-Lightness and engage stem cannot be tight-

ened on the fork steerer tube to a tightening torque

of 4 Nm, in spite of the AX-Lightness carbon assem-

bly paste on the clamping surfaces, stem and fork are

incompatible.

Replace the AX-Lightness and engage stem by

a matching model or ask your AX-Lightness and

engage dealer for advice.

AX-Lightness forks in combination with

AX-Lightness stems can also be used with-

out expander. Dismount in this case the ex-

pander after having adjusted the headset.

The maximum torque value of the stem

bolts is 4 Nm.

After adjusting the headset check

the tight clamping of the stem by

holding the front wheel between

your knees and trying to turn the

handlebars relative to the front

wheel. A loose stem can lead to an

accident!

Road racing bicycle –

Adjusting the handlebars

In the case of road racing bicycles the straight piece

of the drops should be in parallel to the ground or

point with the ends slightly downwards (d). If it is not,

release the handlebar clamping bolts by two to three

turns and re-position the AX-Lightness and engage

handlebars.

Re-tighten the clamping bolts with a 3 mm Allen

key until the clamping slots of the stem faceplate are

identical in width on all sides (e).

If you have a four-bolt stem the upper and lower

clamping slots must be identical in width and parallel

in addition.

Finish by checking the position of the AX-Lightness

and engage handlebars. Tighten the xing bolts even-

ly in a cross pattern, i.e. alternately and in small incre-

ments to the minimum limit of the recommended

torque values by using a high-quality torque wrench

(f) with a 3 mm hexagon bit socket (AX-Lightness)

handlebars and a 4 mm hexagon bit socket (engage)

handlebars.

If you have a four-bolt stem, tighten the bolts in a

cross pattern.

The recommended maximum torque value for the

AX-Lightness Zeus stem is 3-4 Nm. Always use a

high-quality torque wrench and observe the torque

value indicated on the component in case of doubt.

Check the tight t of the AX-Lightness and engage

handlebars in the stem by trying to turn them down-

wards (g). You should not be able to rotate the han-

dlebars. Never exceed the torque value recommend-

ed by the manufacturer.

94 95

Handlebars - Stem

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