Re: [ST] Gear ratios year to year

["Rick & Joyce" <rnjwesc@xxxxxxxxxxxxx>]

John asked:
> Can you feel the difference between the 19 and 17 tooth
sprocket?

I have 17t & 18t sprockets and installed the 17t primarily for
improved low-speed tractibility.  There is noticably more zip in
all gears and it definately pulls away from a stop better.  On
the highway it amounts to ~2mph slower per 1000rpm over the 19t.
Gas mileage suffers a bit, though I still get over 50US mpg when
cruising in the 5-6k rpm range.  If I did more high speed
touring, I'd probably run the 18t for its more relaxed rpm at
cruise.

Scott wrote:
> The 18T front sprocket probably lost me about 5-10mph in the
top end.

Au contraire, you probably gained top end and would probably gain
more with the 17t sprocket.  Assuming a 9500rpm rev limit, with
the 19t, you were geared for over 170mph!  NO WAY will a stock ST
pull that kind of gearing.  Using the same rev limit, the 18t
would yield just over 160mph, & the 17t just over 150.  I'd be
surprised if you could redline the 17t in 6th.

- -Rick in Oregon
'01 Sprint ST




     *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *
      The ST/RS Mailing list is sponsored by Jack Lilley Ltd.
          http://www.TriumphNet.com/st/lilley for more info
   http://www.TriumphNet.com/st for ST, RS and Mailing List info

=-=-=-= Next Message =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=