Wunderlich Suspension Cartridge C4 - Lowering by -25 mm - front

Facts and product features of the Wunderlich Suspension powered by TracTive C4 Cartridge Set

High-performance cartridge set of the latest generation, designed as an upgrade or replacement for the standard suspension. Developed to meet the high demands of discerning adventure riders who frequently ride off-road, touring riders who often travel with heavy loads, and all riders who seek additional safety reserves. Equipped with Hydro-Stop – a secondary damping stage that reduces the risk of bottoming out.

We individually select the spring rate of the spring based on your personal riding profile specifications.

• Damping characteristics
• Our cartridge sets are specifically developed for each motorcycle model and intended use, offering high performance and impressive reserves
• The balanced, sensitive damping behaviour of our suspension components ensures neutral, predictable handling, enhancing rider confidence and overall riding enjoyment
• The cartridges impress with outstanding, transparent feedback – they optimise tyre-to-road contact, wheel guidance and tracking stability, and reduce tyre wear
• The rebound and compression damping adjustment with 18 clicks allows precise, individual fine-tuning using the supplied suspension tool
• To achieve an optimal, sensitive response,
  • the oil channels are generously dimensioned to minimise flow resistance,
  • we use large-diameter pistons (35 mm – the largest on the market),
  • as well as low-friction seals and special shim stacks
• The cartridge set is equipped with a so-called Hydro-Stop system that prevents harsh bottoming out – a second, integrated damping piston creates an additional damping stage at high compression speeds
• The combination of rebound and compression adjustment options, together with the Hydro-Stop system, reduces the risk of overloading the fork and frame while significantly increasing comfort and safety – both on and off road
• The closed aluminium cartridge housings support the system’s thermal stability and performance through optimal heat dissipation
• The generously dimensioned oil volume ensures
  • a low and optimal operating temperature of the oil,
  • consistent damping performance at the highest level,
  • and an extended service life for both the damper and the oil

• Spring characteristics and preload
• Manual spring preload: the preload can be adjusted using the supplied suspension tool
• The wide adjustment range compensates for a broad spectrum of load conditions

• Setup
• Wunderlich Suspension – for the highest demands

• Individualisation
• We individually select the spring rate according to your personal riding profile specifications: once you have chosen your cartridge set, simply specify your personal parameters during the ordering process – these form the basis for selecting the spring that best suits you

• Maintenance
• Each cartridge can be completely serviced professionally at the Wunderlich Suspension Centre
• The suspension tool is included in the scope of delivery

Technical data

• Material
  • The cartridge housings are precisely machined from high-quality aluminium
• Special features
  • Hydro-Stop system – reduces the risk of bottoming out
  • Closed cartridge system
• Manufacturing quality
  • We use only high-strength components such as micro-machined, induction-hardened and tempered 42CrMo piston rods, top-quality bearings, stainless-steel bushings, and low-friction seals
• Dimensions
  • Piston diameter: 35 mm
  • Piston rod diameter: 10 mm
• Spring preload adjustment
  • Manual
• Installation location
  • Front fork

Your Wunderlich advantages

• Wunderlich product. Small series. Handmade.
• Wunderlich design. Functional and integrated.
• Tested by Wunderlich
• Made in Europe
• 5-year warranty with adherence to 24-month service intervals
• With ABE