front sprocket

[davepreston]

i can get a jt front sprocket for suzy but its a tooth up how will it affect her if at all cheers

[hovis]

it will be much better if you drop a tooth on the front

and easier to wheelie

you may lose a bit of top end, but will hardly notice

[davepreston]

:twisted::D mmmmm wheelie mmmmm:):twisted:

[yorkie_chris]

No other way around. Adding a tooth at the front will make it lazier, lower rpms for each speed-gear.

[davepreston]

so hovis does that mean it will improve my top end then

[yorkie_chris]

Nah, won't do much to the top end, since a stock SV won't hit the limiter in top on stock gearing anyway.

[davepreston]

yoda ur wisdom please

[davepreston]

so its a lose lose then

[hovis]

possibly a bit?

but YC is here now, so i will shut up

(apart from saying drop a tooth on the front)

[hovis]

so its a lose lose then

unless you drop a tooth on the front;)

[yorkie_chris]

Not exactly a lose-lose ... it probably won't affect your top end but to reach top speed you might have to use 5th gear to get into the power.

Some people reckon to get better mpg with higher gearing.

Bigger front sprocket might make chain last a bit longer, but I dunno. A smaller one certainly wears it out faster!

[dizzyblonde]

one up on the front will turn it into a mile muncher Dave. My black SV has one up on the front and it makes long distance a dream. Compared to standard your teeth don't rattle in top, it makes for less vibration and more comfortable ride, and it wants more on a motorway and will give it.
Although it does make for crappy starting out of a set of lights, have to just ring the throttle a little more, and compared to standard i have to think a little more on twisties, as sometimes i have it in the wrong gear with too lower revs....but thats only when I've been riding my other for a while with standard gearing.

oh and it will give you slightly better fuel consumption too, and YC is right about the chain, haven;t had to adjust mine since I bought it...in 2006

[yorkie_chris]

I rode it, still felt like a normal S. #shrug#

[davepreston]

mpg mpg are you on smack ,me care about mpg, tryin to kill meself doing silly tings at silly speeds youve meet me for .... sake mpg we'll be havin words lad

he he he he he

[yorkie_chris]

DB ... to be fair you do spend more on chain lube than petrol though!

[davepreston]

DB ... to be fair you do spend more on chain lube than petrol though!

lol

[dizzyblonde]

ermmmm nope i don't. Mind you my petrol consumption long distance is bound to be better than your small tank ;-)

Besides, you've ridden that bike for 20 seconds...I've ridden some 8k on it, and across the pond, so I kinda think I know how higher gearing goes.....

[davepreston]

heres a question is it worth getting it to stick on for big tours eg europe and changing it back for normal riding

[dizzyblonde]

heres a question is it worth getting it to stick on for big tours eg europe and changing it back for normal riding

its definate on that score. I bought the bike in 2006 when my other bike was ill. I had already booked to go to Bordeaux so needed a bike and as this one was set up for long distance with the higher gears it was perfect.
Like I said its a dream for them mway miles. I hate riding standard gears now on the motorway, I was actually thinking of swapping the new sprocket on my other bike for one with more teeth, then realised there wouldn;t be enough links in the chain:(

[davepreston]

so if i get the extra tooth that will affect my chain choice aswell

[dizzyblonde]

errrr dunno. Chains come with extra links anyway I think.

[embee]

You can put an extra tooth on the g/box on a curvey SVS with the standard chain, there's just enough rear wheel travel.

Mine has a 16T instead of the std 15T, and it's like Dizzy says. Feels more relaxed on long distance work. I always used to try for 7th gear, never do now. I don't go in for traffic light grand prix starts so I'm not bothered about that. Fuel economy doesn't change noticeably, maybe a mpg or 2, that's more down to riding style.

You just have to get used to the new gear ratios, 16/44 makes 5th almost exactly half way between 5th and 6th with 15/44. As long as you use the correct gear there's little real world difference, real world isn't like race-tracks where you can optimise gearing for the circuit.

If you want more relaxed, go 16T, if you want wheelies go 14T.

[davepreston]

cheers ive been offered a 16t front jt rear and o ring chain £80

[dizzyblonde]

You just have to get used to the new gear ratios, 16/44 makes 5th almost exactly half way between 5th and 6th with 15/44. .

I notice the difference particularly around 30 mph in second. On Suzy you get 30mph bob on 5k, but you'll be doing 4.5k for 30 mph on Dave. I have to keep an eye a little more on the speedo, as its tooooo easy to creep over the speed limit, I look down and i'll be nearly at 35 mph, and it isn't screaming to be changed. ( I like to keep my noise down you see;))

I can't be forgetting, if I've been jumping between the two bikes a lot....not hard at the mo, only one bike working again :-(

[yorkie_chris]

cheers ive been offered a 16t front jt rear and o ring chain £80

What chain? JT sprockets are good stuff.

Not worth swapping sprockets depending on use no way, swapping a front sprocket is a right PITA and there's only so many times you can re-use the lock washer before you're playing with fire.

[vardypeeps]

I'm one up on the front and it's great! Brilliant for the motorway 80mph on the clock and it's just chugging away at 6000revs.
As for the corners I have not had any problems either still has the power there to put down on the exit.

[Dangerous Dave]

Nah, won't do much to the top end, since a stock SV won't hit the limiter in top on stock gearing anyway.
+ 1

[yorkie_chris]

errrr dunno. Chains come with extra links anyway I think.

You can order chains to whatever length you so desire.

[TheStudent]

I have a few questions about sprockets...

Standard rear is 45 iirc? What's the top speed with an extra two or three teeth?
Does the bike power wheelie with an extra two or three?
Is the bike noticably quicker, a worth while mod?

[yorkie_chris]

I've got 3 (from naked) up on the back, I've had 130 indicated on the naked. Yes it makes it easier to pop up, especially in 2nd. I like it, but you're turning a lot of revs on the motorway.

[TheStudent]

I've got 3 (from naked) up on the back, I've had 130 indicated on the naked. Yes it makes it easier to pop up, especially in 2nd. I like it, but you're turning a lot of revs on the motorway.

I never go on the motorway, very rarely on a dual carraige way, so that's not really an issue for me. So you have a 48 rear then? What size chain did you need?

[yorkie_chris]

I used 112 links, but it's actually a bit too long and I probably could have used a 110 as stock. Bear in mind the nekkid has 10mm extra in the swingarm. I reckon 110 links will be about spot on. (you can always order 110 and chop 2 off if needed)

[embee]

A faired curvey SVS is 15/44 as standard, the nekkid curvey is 15/45.

[Dangerous Dave]

A faired curvey SVS is 15/44 as standard, the nekkid curvey is 15/45.
Yes

[gettin2dizzy]

Nah, won't do much to the top end, since a stock SV won't hit the limiter in top on stock gearing anyway.It will with a super-open pipe ;)

[TheStudent]

A faired curvey SVS is 15/44 as standard, the nekkid curvey is 15/45.

I would have thought the sportier one would have the extra tooth? Or one less due to better aerodynamics?

[yorkie_chris]

One less for higher top speed on the S. One more on the nekkid to make it more revvy and fun in town and on tight roads.

[davepreston]

so can you if a naked chain and sprockets on an s or would there be a problem im on about one of the complete sets of evilbay for £70

[yorkie_chris]

Yes it should go on fine. However ask petevtwin how many links of chain to use, as using the 110 from the nekkid will use up 10mm of adjustment.

[embee]

The naked swingarm was longer, and the chain is an extra 2 links so it'll end up too long on an S. You can shorten the chain, of course.

As I said, you can just fit an extra tooth on the front with a standard SVS chain length, similarly I would suggest one tooth extra on the rear with a standard front will fit as well, though I haven't personally done that. One tooth either end is equivalent to putting roughly an extra half pitch into the chain wrap around (nominally) half the sprocket, so a quarter pitch out of each of the top and bottom chain runs, i.e. moving the wheel forward a quarter of a chain pitch (5/8" pitch or about 16mm so 4mm wheel movement).