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Shimano Biopace ® Kettenblätter: Unterschied zwischen den Versionen

(→‎Eine Biopace Geschichte: richtig in Überschriften einsortiert)
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===Biopace und runde Kettenblätter mischen===
===Biopace und runde Kettenblätter mischen===
Grundsätzlich ist es möglich, Biopace- und runde Kettenblätter an der gleichen Kurbeln zu mischen, jedoch riet [[Sheldon Brown]] davon ab. Wenn mann Kettenblätter mischt, setzte man üblicherweise ein kleineres Biopace mit einem größeren runden kettenblatt zusemmen. Die Idee dahinter ist, die überlegenen Klettereingenschaften des Biopace-Kettenblatts bei geringen Kadenzen mit den Vorteilen runder kettenblätter bei schnellen Abfahrten und hohen Kadenzen zu kombinieren.


It is possible to mix Biopace and round chainwheels on the same crankset, but I [Sheldon] would not recommend it. When chainwheels are mixed, it is usually a small Biopace with a large round ring. The idea is to take advantage of the Biopace's superior climbing performance at low RPM's, and have the big round ring for descending and spinning fast.


The problem is that Biopace rings are more comfortable at low RPM's, and round rings at high RPM's. When you shift from a small Biopace ring to larger round ring, you go from a fast cadence on the Biopace to a slower cadence on the round ring--just the opposite of what is wanted. I have tried this arrangement on both a road bike and a mountain bike, and found it extremely irritating. Due to the need to work well with a front derailer, the large Biopace rings have less "Biopace effect" in any case: the variation in diameter the same, but this is a smaller percentage of the total diameter.
The problem is that Biopace rings are more comfortable at low RPM's, and round rings at high RPM's. When you shift from a small Biopace ring to larger round ring, you go from a fast cadence on the Biopace to a slower cadence on the round ring--just the opposite of what is wanted. I have tried this arrangement on both a road bike and a mountain bike, and found it extremely irritating. Due to the need to work well with a front derailer, the large Biopace rings have less "Biopace effect" in any case: the variation in diameter the same, but this is a smaller percentage of the total diameter.
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You can usually lower the bottom gear by installing a larger rear sprocket instead.
You can usually lower the bottom gear by installing a larger rear sprocket instead.
{{Ergänzung|Ergänzung durch [[John Allen]]|
{{Ergänzung|Ergänzung durch [[John Allen]]|
==Eine Biopace Geschichte==
==Eine Biopace Geschichte==
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