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Bremsen für Tandems: Unterschied zwischen den Versionen
→Konventionelle Cantilever: Übersetzung
(→Zangenbremsen: übersetzt) |
(→Konventionelle Cantilever: Übersetzung) |
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===Konventionelle Cantilever=== | ===Konventionelle Cantilever=== | ||
Da Cantilever-Bremsen die Gelenke unterhalb der Felgen haben, ist Reifenfreiheit kein Problem. Ein Tandem mit Cantilever-Bremsen kann soviel Reifenfreiheit und Platz für Schutzbleche haben wie nötig, ohne dass das nachteilige Effekte auf die Bremswirkung hat. | |||
Die [[Hebelübersetzung]] einer konventionellen (Mittelzug-)Cantilever-Bremse kann durch die Variation der Zuglängen eingestellt werden. das kann man im Detail in den Artikeln [[Über Felgenbremsen an Anlötsockeln]] und [[Cantilever Geometrie]] nachlesen. | |||
Ein Nachteil konventioneller Cantilever-Bremsen ist die abnehmende Hebelübersetzung der Bremse je näher sie der felge kommt. Das ist eigentlich umgekehrt wie man es sich wünscht. | |||
===Selbstverstärkende Cantilever=== | |||
Because of the myth that conventional cantilevers aren't strong enough for tandem use, some people favor Self-Energizing cantilevers. These don't have a simple pivot, instead, each arm moves on a steep multi-start screw thread, so that as the shoe approaches the rim it also moves forward. When it rubs on the moving rim, the forward pull tends to increase the inward pressure, providing a "positive feedback." | Because of the myth that conventional cantilevers aren't strong enough for tandem use, some people favor Self-Energizing cantilevers. These don't have a simple pivot, instead, each arm moves on a steep multi-start screw thread, so that as the shoe approaches the rim it also moves forward. When it rubs on the moving rim, the forward pull tends to increase the inward pressure, providing a "positive feedback." | ||
This design can apply greater braking force for less finger force than a conventional cantilever, but it is difficult to modulate it. The original Scott Pedersen SE brakes were available either for front or rear use (opposite direction threadings), but when Sun Tour bought the design, their legal department vetoed the front version, so only the rear model was made by Sun Tour. I advise against the use of Self Energizing brakes, because they make it too easy to lock up the wheel. | This design can apply greater braking force for less finger force than a conventional cantilever, but it is difficult to modulate it. The original Scott Pedersen SE brakes were available either for front or rear use (opposite direction threadings), but when Sun Tour bought the design, their legal department vetoed the front version, so only the rear model was made by Sun Tour. I advise against the use of Self Energizing brakes, because they make it too easy to lock up the wheel. | ||
===Direktzugbremsen=== | ===Direktzugbremsen=== | ||
The newest thing in cantilevers is the "direct-pull" cantilever. The best known version of this is the Shimano "V-Brake" ®. These are an elegantly simple design. The mechanical advantige is fixed, high, and doesn't significantly vary over the course of the stroke. | The newest thing in cantilevers is the "direct-pull" cantilever. The best known version of this is the Shimano "V-Brake" ®. These are an elegantly simple design. The mechanical advantige is fixed, high, and doesn't significantly vary over the course of the stroke. | ||