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[Closed] Alfine Hubs

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cookea - do you want a copy of the calculator for gear ratios for the alfine??

32 / 20 is quite low. I went round GT in 32 /18 and tho I would have liked a lower gear I managed fine.


 
Posted : 26/01/2010 1:01 pm
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TJ- yes please


 
Posted : 26/01/2010 3:06 pm
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hang on is [url= http://sheldonbrown.com/harris/shimano-nexus.html ]THIS[/url] what I need?


 
Posted : 26/01/2010 3:08 pm
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Thats the basic info - maverickboy made an excell spreadsheet that is very clever and has all the various ratios, gear inches and so on - you can change the size of the chainrings and see the effects on the ratios - its very clever but I need an e mail to send it to.


 
Posted : 26/01/2010 3:12 pm
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I like the MPH at RPM function of Sheldons calculator.


 
Posted : 26/01/2010 3:15 pm
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Ah - I didn't scroll down to the calculator.


 
Posted : 26/01/2010 3:16 pm
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It's alright looks like Sheldon has (had) all the info, I can just bang a new sheet on my existing Gear ratio calculator spreadsheet [/nerd] cheers


 
Posted : 26/01/2010 3:17 pm
 mboy
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Ok so if Iโ€™ve understood you correctly running an alfine with a 32/20 input ratio gives you a range of 69.3 โ€“ 21.9 Gear inches (with a 26โ€ wheel) so quite a spinney range thenโ€ฆ

Approximately, yes... Depends on your tyre size though of course.

I like the MPH at RPM function of Sheldons calculator.

Drop me an email, I'll send you my spreadsheet... It's EVEN CLEVERER than Sheldon's calculator as you can input your own desired RPM values rather than just some presets. It even has all the info there for you on ONE PAGE so that you don't have to keep refreshing every time you want to change something, or view a different bit of information (which was what bugged me about Sheldon's site, so I created my own spreadsheet)! ๐Ÿ˜‰

It's alright looks like Sheldon has (had) all the info, I can just bang a new sheet on my existing Gear ratio calculator spreadsheet [/nerd] cheers

Happily send you mine mate... I'm not charging for it... You can just copy and paste any info out of it you want into your own sheet then should you desire... Just drop me an email (in my profile)...

The 11-34T spread is if you run the 18T sprocket. With a 20T sprocket you get 12-38T.

11.1-34.2 and 12.4-38.0 respectively if we're being pedantic! ๐Ÿ˜‰

Reading about a bit the Description on the IO seems to suggests the Alfine hub produces the equivalent of an 11-38t cassette in terms of gearing range

Hmmmm, that's misleading... Where's James from Genesis, he frequents here a lot... He was asking me at one point about being able to host my spreadsheet from their site for those with gearing questions about the Alfine...

what i'm trying to get across is that surely a "big" rider can ride light with experience.

Again, I'll repeat my eariler comment... EH? ๐Ÿ˜•

How does experience defy the laws of gravity?


 
Posted : 26/01/2010 3:58 pm
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James is lurking here somewhere. I will point out the error.


 
Posted : 26/01/2010 4:05 pm
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