1974 gt380 rear sprocket

just a random question and if anyone has time to quickly comment i'd be
thankful.....is it possible to replace a smaller sprocket for a larger
size in the rear? will timing or anything else suffer.
preperation: new front sprocket already, chain will fit.......thanks

 

It will increase acceleration but reduce top speed.

 

Depends how much bigger it is. If only a tooth or two, the only thing
that will suffer is the top speed. You should check the chain doesn't
run unduly hard on anything though as the top chain run will be higher,
the bottom one lower.

However if the bigger sprocket's a few feet across, your left kidney's
in for a hard time.


--
Krusty.

http://www.muddystuff.co.uk
http://www.muddystuff.us
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'02 MV Senna '03 Tiger (FOYRNB) '96 Tiger '79 Fantic 250

 

YTC.

Putting a smaller sprocket on the back will have the exact opposite
effect - it will reduce acceleration and increase top speed (assuming
the engine has the grunt, which it probably doesn't, as the GT380 is
quite high geared anyway). So let's say it will reduce the engine revs
for a given speed.

Actually, the OP's question isn't clear. Does he mean replace a smaller
sprocket *with* a larger one? I was assuming he wanted to fit a
sprocket that's smaller to the one he already has.

 

I definitely read that as putting a larger sprocket in place of a
smaller one. But as you say it could be interpreted either way.

--

jeremy
'01 Triumph Sprint ST in green
_______________________________________
jeremy0505 at gmail.com

 

So we're agreed, then? OP is a twonk. Sorted.

 

I'm glad you cleared that up. I always get that the wrong way round.

 

You'll be telling me that dropping the forks through the yokes quickens
up the steering next ;-)

 

SWMBO asked 3X to lower her Raptor as much as possible before she
collected it. The first time she rode it nearly ended in tears after an
almighty great tank-slapper over some chevrons. They'd raised the forks
about two bloody inches, & done nothing to the rear! I nearly had a
tank-slapper wheeling it into the garage :-/

--
Krusty.

http://www.muddystuff.co.uk
http://www.muddystuff.us
Off-road classifieds

'02 MV Senna '03 Tiger (FOYRNB) '96 Tiger '79 Fantic 250

 

snip

This really gets my goat. There's NOTHING random about it. Bloody youth
speak.

 

As the kids would say, he's a bit meh..

 

*I* know this - SO's still in training though. She was actually more
worried about me re-lowering the forks as I'm "not a mechanic". I lost
count of the number of times she asked "are you *sure* you've tightened
those bolts up properly".

It's funny how some people have more faith in an unknown spotty 19 year
old with an NVQ than they do in their partner with over 30 years
spannering experience, but no stificate.

--
Krusty.

http://www.muddystuff.co.uk
http://www.muddystuff.us
Off-road classifieds

'02 MV Senna '03 Tiger (FOYRNB) '96 Tiger '79 Fantic 250

 

Good for off roading though ..

P.

 

<TOG@toil>; <>; <>
wrote in message

".....replace a smaller sprocket" means putting something else in the place
of the smaller sprocket, doesn't it? In this case, a larger size sprocket.
Hence the increase in acceleration and reduced top speed.

That is what "replace a smaller sprocket" clearly implies. Whether or not
that is what he meant to say is another issue

YTC