37-tooth Sprocket

Scope wrote:
 > I have a 2002 Honda Shadow Spirit 750. I believe it came with a 40-tooth
 > sprocket. I'd like to change it to a 37-tooth to reduce my highway speed
 > RPM.
 >
 > Is 37 too low? Has anyone done it before?
 >
 > I don't care about losing some power in the low gears after the change.

That may be, but you might be annoyed to find it no longer has enough
power in top gear to climb hills or accelerate against the wind at
speeds it used to be able to handle. Someone put a 17T front sprocket
(originally 16T) on my CM400T, presumably for the same reason. It did
lower the rpms but it also made top gear useless for anything except
moderate speed cruising.

Depending on how close 4th and 5th gear (assuming you have a 5 speed)
are, it might work out OK, but the factory gearing is usually the best
compromise between engine rpm and reserve power. Unless there is a
engine-rpm-related vibration at your normal cruising speed that you just
can't live with, my advice is to forget about the engine rpms and just
ride it.

--
Mark '01 SV650S '81 CM400T '99 EX250-F13
 >> Stay informed about: 37-tooth Sprocket 

Thanks guys! Actually, I'll settle for a 39-tooth. It should be the right
balance.

Where's a good place to get one on the Web?

..: Scope :.


"Mark Olson" wrote in message


  > > I have a 2002 Honda Shadow Spirit 750. I believe it came with a 40-tooth
  > > sprocket. I'd like to change it to a 37-tooth to reduce my highway speed
  > > RPM.
  > >
  > > Is 37 too low? Has anyone done it before?
  > >
  > > I don't care about losing some power in the low gears after the change.
 >
 > That may be, but you might be annoyed to find it no longer has enough
 > power in top gear to climb hills or accelerate against the wind at
 > speeds it used to be able to handle. Someone put a 17T front sprocket
 > (originally 16T) on my CM400T, presumably for the same reason. It did
 > lower the rpms but it also made top gear useless for anything except
 > moderate speed cruising.
 >
 > Depending on how close 4th and 5th gear (assuming you have a 5 speed)
 > are, it might work out OK, but the factory gearing is usually the best
 > compromise between engine rpm and reserve power. Unless there is a
 > engine-rpm-related vibration at your normal cruising speed that you just
 > can't live with, my advice is to forget about the engine rpms and just
 > ride it.
 >
 > --
 > Mark '01 SV650S '81 CM400T '99 EX250-F13
 >> Stay informed about: 37-tooth Sprocket 

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"Scope" wrote in message

 > Thanks guys! Actually, I'll settle for a 39-tooth. It should be the right
 > balance.
 >
 > Where's a good place to get one on the Web?
 >
 > .: Scope :.
 >
 >



   > > > I have a 2002 Honda Shadow Spirit 750. I believe it came with a
40-tooth
   > > > sprocket. I'd like to change it to a 37-tooth to reduce my highway
speed
   > > > RPM.
   > > >
   > > > Is 37 too low? Has anyone done it before?
   > > >
   > > > I don't care about losing some power in the low gears after the
change.
  > >
  > > That may be, but you might be annoyed to find it no longer has enough
  > > power in top gear to climb hills or accelerate against the wind at
  > > speeds it used to be able to handle. Someone put a 17T front sprocket
  > > (originally 16T) on my CM400T, presumably for the same reason. It did
  > > lower the rpms but it also made top gear useless for anything except
  > > moderate speed cruising.
  > >
  > > Depending on how close 4th and 5th gear (assuming you have a 5 speed)
  > > are, it might work out OK, but the factory gearing is usually the best
  > > compromise between engine rpm and reserve power. Unless there is a
  > > engine-rpm-related vibration at your normal cruising speed that you just
  > > can't live with, my advice is to forget about the engine rpms and just
  > > ride it.
  > >
  > > --
  > > Mark '01 SV650S '81 CM400T '99 EX250-F13
 >
 >
 >> Stay informed about: 37-tooth Sprocket