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RE: 18 tooth sprocket
- Subject: RE: 18 tooth sprocket
- From: "Keith Tynan" <keith@xxxxxxxxxxxxxxx>
- Date: Mon, 19 Feb 2001 08:55:34 -0000
> Date: Sun, 18 Feb 2001 20:09:38 -0500
> From: Mark Collett <yzf1k@xxxxxxxxxxxxx>
> ...
> I've got a 2001 BRG Sprint ST, and I believe it's got a 19
> tooth from
> sprocket. From reading the service manual, I saw that earlier years had
> an 18 tooth sprocket. I recall that there was some discussion on this.
> Any reason why they did this? In my opinion, my ST final drive is
> geared way too tall. Does anyone know right off-hand what rpm
> difference the 18 tooth sprocket makes? Any opinions on changing?
>
Mark,
Cast an eye over the http://www.triumphnet.com/st FAQ -> Chain & Sprockets.
The top speed represents 9600 rpm.
Alternatively, look at the FAQ -> Performance Sheets page; open up the
spreadsheets\1999_triumph_sprint_st.xls Excel workbook, and change the final
drive ratio (B37, C37). The consequences can be seen in graph 4) Gear
ratios, and cells B52:G52
Regards,
- --
BRG
email: keith@xxxxxxxxxxxxxxx
'00 Sprint ST BRG 'Wolfram'
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