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WAD telescopic fork: upside down fork with travel-related damping

For highly sporty off-road motorcycling, the long spring deflections needed are no longer possible using the telelever construction characteristic of the brand. Consequently the HP2 Enduro features a high-quality upside-down telescopic fork that guides the front wheel with an impressive 270 mm of travel. Although continuous adjustments for both the rebound and compression stages are a typical standard for this segment, travel-dependent damping is a world premiere on a telescopic fork in the series motorcycle production. Travel-dependent has already furnished impressive proof of its benefits in the rear wheel suspension of a number of BMW motorcycle models.

The principle of travel-dependent damping originates from off-road sports and serves to unite two requirements that are in fact opposed: sensitive response over minor unevenness and under low load; high overload protection following hard impacts and even jumps. In other words, the suspension element is softer for short deflections and harder for longer ones. These progressive characteristics were unavailable to date on a telescopic fork. Here travel-dependent damping is realised by a two-part adjustment range for pressure stage damping: this is separate for the first two thirds and the last third of deflection and can be regulated independently. Consequently the rider can make the fork respond sensitively over its main working stroke in compression, at the same time damping considerably more greatly over the last few centimetres to provide high reserves.