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Drucken plastics 01_04 _E_dp - BASF Plastics Portal

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Applications 32<br />

A smoother ride for cyclists<br />

Cellasto ® springs cope with even the toughest tracks<br />

Anew, high-tech suspension<br />

designed just for<br />

bikes has been developed by<br />

Elastogran. Cellasto ® (made from microcellular<br />

polyurethane) has been used to<br />

produce suspension springs that are<br />

suitable for free riders, cross-country<br />

professionals and downhill bikers.<br />

The suspension element SSD-210 has<br />

been developed in collaboration with DT<br />

Swiss Biel/Switzerland, one of the<br />

biggest international manufacturers of<br />

high-end bicycle spokes and hubs. The<br />

spring system is a precision product and<br />

also one of the lightest on the market<br />

and as a result came out top in a comparative<br />

test by biking magazine Mountainbike.<br />

The perfect<br />

choice<br />

There are many other benefits too. The DT<br />

Swiss shock absorber is a pneumatic<br />

cylinder, combined with a Cellasto ® negative<br />

spring. This is an ideal combination, as<br />

other<br />

types of air<br />

springs have a high failure risk.<br />

The characteristic curve important for professionals<br />

is very similar to a steel spring,<br />

but much lighter. When the shock<br />

absorber is compressed during riding, the<br />

partition shifts against a second Cellasto ®<br />

spring and increases air volume. As a<br />

result, pressure’s reduced and the characteristic<br />

curve progression flattens out. This<br />

means even suspension for the cyclist,<br />

and no unpleasant or painful jolts whenever<br />

they have to push harder on the pedals.<br />

The polyurethane elastomers in the<br />

shock absorber are highly elastic<br />

and can be precisely tuned to the<br />

cyclist and type of bicycle. They’re also<br />

abrasion resistant, fail-safe, service-free<br />

and extremely durable. So, Cellasto’s ideal<br />

for cycling enthusiasts who don’t want the<br />

hassle of steel springs but still want sensitive<br />

suspension to get them there safely.<br />

Cellasto ®<br />

Cellasto ® shock absorber<br />

element – the facts<br />

Material: Cellasto ® – microcellular<br />

polyurethane elastomers<br />

Use: Suspension element for<br />

mountain bikes<br />

Properties: Volume compressible,<br />

absorbs noise and<br />

vibration, high dynamic<br />

resilience, abrasion<br />

resistant<br />

Damping elements made of <strong>BASF</strong>’s<br />

Cellasto ® can be found in DT Swiss shock<br />

absorbers.

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