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Fitted the 14 tooth what a difference 1 tooth makes

only problem is holding the bike down

deceleration also improved seem to have more control though gears cornering

deceleration with the kyle throttle and the 14 tooth low speed maneuvering is greatly improved most of the factory set up at low speed cantering is gone
even my ducati dealer loved it on test ride
Shanetbird
OZtralia
 

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kiss your chain good bye, the tight radius the chain is required when coming around the smaller sprocket will significantly shorten the life span of your chain.

not to mention, while it may feel more powerful you are technically reducing the engines efficiency to put power to the rear wheel

last but not least while it may be a small change it does change the anti-squat characteristics of the bike.
 

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kiss your chain good bye, the tight radius the chain is required when coming around the smaller sprocket will significantly shorten the life span of your chain.

not to mention, while it may feel more powerful you are technically reducing the engines efficiency to put power to the rear wheel

last but not least while it may be a small change it does change the anti-squat characteristics of the bike.
Chain life reduction is relatively small... if you spend $180 on a good x-ring
chain and you lose 15% of it's life, you've only lost about $25. That said,
I did my new chain with a 45T Supersprox on the rear instead, which gives
the same 7% approx. final drive gear reduction. More money, though.

Lowering gearing increases torque multiplication, which makes the bike livelier
and it will accelerate quicker. I prefer these bikes with a 7-10% final drive
reduction, but then I don't care about going over 120 mph, even at my local
track where I seldom hit over 106 on the longest straight. The snap out of
corners is what I dig; not hauling flat-out at 130 mph.

I would think the tendency to squat would be most affected by things like
ride height and suspension settings, spring rates, etc. How does squat relate
to the gearing other than more torque= more tendency to loft the front?
 

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The radius is fine with a 14T front sprocket.

The real issue is that the chain will hit the same teeth on the sprockets every 7 revolutions or so with that combination of front-rear sprockets, causing accelerated wear. (The normal offset means that the chain and sprockets intermesh at the same point every 100+ times or so, I think. There's a calculator online that will show this)
 

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How many more links did you need to add to run the 45T versus the stock chain?
The 45T sprocket with a two link longer 525 chain (104 stock, 106 now)
results in a net change in sprocket-to-sprocket centering of only +3mm.
So you adjust the wheel back 3mm with this setup, a small change that is
almost imperceptable. Adjustments for chain stretch over time will of course
have to be made, pushing the wheel back a few millimeters more, but that
is well within the Hyper's adjustment range. Since chain links can only be
added in pairs, I found this setup to be particulary convenient. For instance,
with a _44T_ sprocket and two extra links you would have to move the wheel
back 12mm (nearly half an inch).

Also, the percent change in final drive ratio from a 15/42 to a 15/44 is only
about 4.5%, which is barely noticeable from the rider's seat-of-the-pants,
and to me not worth the expense of the new sprocket. The 7% lower
gearing of the 45T sprocket is noticeable but not extreme. First gear is
certainly not "useless"-- I find it to be perfect for slower situations where
you want to avoid bogging and clutch slipping. Whether you change the
front sprocket down a tooth to 14 or increase the rear to 45T, the increased
"hit" from this already torquey bike is a definite plus in my book, especially
if you favor tight backroads or twisty, technical tracks.
 

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stock is 15-42 gearing

I feel that the 14-42 or the 15-45 is the "LOWEST" you should go, unless your the stunt-man in the movie "YES MAN" I will be running a 15-44 combo, and with my modded motor I hope to achieve some extra snap out of corners & still have a top end. I know of someone that is running a 14-45 combo, and he has no 1st gear or top-end! :eek: LOL Alex
 
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