The retrofit kit consists of a steel spring available in four degrees of hardness, the striking yellow "U-Turn" adjustment knob for adjusting the suspension travel and a few small parts. After fitting the retrofit kit, six full turns of the yellow adjustment knob are enough to increase the travel from a minimum of 8 to a maximum of 12.5 centimetres. This means that the right suspension travel is always at hand: whether on rapid descents or on the long climb beforehand.

The "U-Turn" retrofit kit is now available from specialist dealers for CHF 229 (excluding installation) and is distributed by Cilo Bike Service, tel. 021 641 63 31.