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BIG chainrings |
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Yowie
BHPC Member Joined: 05 March 2005 Location: NRW Status: Offline Points: 927 |
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As Barney says, the way most people get to know and understand what gear inches are is by trial and experimentation. Looking at your favourite bikes and gears that you actually spend time in is a good method. Sheldon't Gain Ratio as he calls it is an additional factor relating to crank length, so if you're comparing a 170mm crank road bike with a 150mm crank recumbent, all other things being equal means that the gearing is 170/150 higher on the recumbent. Aerodynamics of course may affect your consideration of what the gear range should be, but don't go overboard.
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Yanto
Moderator Group Joined: 11 July 2005 Status: Offline Points: 1484 |
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I'm just replicating what is already on Wobbly Bob (80t). I'm hoping to stick a boom and BB in rather than the fragile Z cranks that are too easy to bend, I want to be able to mash it from the line, this will mean I can "grrrrrrr" like Barney then!
On rooting around in the shed I might have stumbled across something which might mean not having to purchase a new ring after all. |
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Wyndrake
BHPC Member Joined: 01 July 2007 Location: United Kingdom Status: Offline Points: 359 |
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So Yanto, you've got nuclear mice in your shed too ....
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Yanto
Moderator Group Joined: 11 July 2005 Status: Offline Points: 1484 |
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shush, the technical inspector might be reading!
Edited by Yanto - 25 November 2013 at 11:14pm |
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