Operation Manual

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If the lever does not close tightly enough:
WARNING Danger from falls and accidents
If the lever is too loose when closed, the saddle post may suddenly slip down a long way while the
bike is being ridden. This can lead to dangerous riding situations, falls and accidents.
– Open the lever.
– Turn the knurled nut slightly in a clockwise direction (as seen from the left).
– Close the lever again.
If the lever closes too tightly:
WARNING Danger from falls and accidents
If the lever cannot move in its fi nal position (90° to the hub axle) because the pre-tension is too great
(see illustration), the lever may become loose while the bike is being ridden and the saddle post may
suddenly slip down a long way. This can lead to dangerous riding situations, falls and accidents.
– Open the lever.
– Turn the knurled nut back slightly in an anticlockwise direction (as seen from the left).
– Close the quick-release lever again.
8.6.4 Screw-nut clamping on wheels
WARNING Danger from falls and accidents
Incorrect installation of the wheels using the quick-release hub axle can lead to dangerous riding
situations, falls, accidents and material damage.
• You should have wheels with a screw-nut clamping only opened and closed by a specialist work-
shop.
8.6.5 Opening and closing the screw-nut clamping on saddle posts
You need an Allen key and a torque spanner with a hexagonal socket of size 4 and 5 mm.
8.6.5.1 Opening the screw-nut clamping on the saddle post
1. Loosen the clamping bolt(s) by a few turns until the saddle post can be easily moved.