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irish aprilia View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote irish aprilia Quote  Post ReplyReply Direct Link To This Post Topic: Gearing
    Posted: 21 Jan 2018 at 19:55
Taking delivery on a tuono during the week whats the best gearing on sprockets....

Don't know what on it at moment
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Si McMille View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Si McMille Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 2018 at 20:15
If it’s a gen 1 15/42 or 16/44.. 👍
2001 RP Mille
15/42 gearing
54mm tb’s
54mm Evo stacks - dual velocity
Evo air box with K&N
Unrestricted intake boot
Custom Collector Mod
Evo Ti Exhaust
Aprilia EPROM
PC3
Tuono riser conversion
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deloco7 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote deloco7 Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 2018 at 20:15
The popular consensus is to go -1/+2 from standard on both Gen 1 and Gen 2 bikes.

if yours is a Gen 1 then 16/44 is really good. Makes it a far nicer bike at lower speeds and round town. Gen 2 would be 15/42 for a similar change. Never had a G2 so can't say for sure but lots of guys recommend it.

Anything is better than standard 
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irish aprilia View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote irish aprilia Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 2018 at 20:17
Cheers it's a gen 2.... Will have a look when it arrives...

Any idea what the sizes are as standard
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deloco7 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote deloco7 Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 2018 at 20:20
Gen 2 is 16/40 standard
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irish aprilia View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote irish aprilia Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 2018 at 20:20
Originally posted by deloco7 deloco7 wrote:

Gen 2 is 16/40 standard


Cool thanks
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Si McMille View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Si McMille Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 2018 at 20:53
There’s no difference to a 16/44 to a 15/42.. both practically the same gear ratio.
2001 RP Mille
15/42 gearing
54mm tb’s
54mm Evo stacks - dual velocity
Evo air box with K&N
Unrestricted intake boot
Custom Collector Mod
Evo Ti Exhaust
Aprilia EPROM
PC3
Tuono riser conversion
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deloco7 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote deloco7 Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 2018 at 21:12
Its not just about the same gear ratio its also about how the bike behaves and rides particularly at lower speeds.

I'm not aware of anyone (apart from yourself) who has kept the 42 T rear. I'm not saying there isn't more people who have kept it but almost universally people go up on their rear sprocket +1/+2/+3....

The -1/+2 is recommended by people all over  - probably for a good reason. If it was all about the gearing ratio then why would people bother to change the rear sprocket?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ConTRo13r Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 2018 at 21:41
Going down too small a gear on the front will give a more acute angle meaning greater chain wear and also clearance issues with the chain guide.
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Si McMille View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Si McMille Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 2018 at 23:06
Theres quite a few riders have chose to drop to 15front and keep the 42 rear as it’s cheaper just buying a front sprocket..

Rule of thumb has always been 1 tooth on the front equals approx 2 on the rear.

Having 2 different sprocket configurations with the same gearing ratio will perform no different on the same bike - as they have the same final drive!!
2001 RP Mille
15/42 gearing
54mm tb’s
54mm Evo stacks - dual velocity
Evo air box with K&N
Unrestricted intake boot
Custom Collector Mod
Evo Ti Exhaust
Aprilia EPROM
PC3
Tuono riser conversion
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deloco7 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote deloco7 Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 2018 at 23:46
yeah buying one sprocket is usually cheaper than buying 2. Again, I would choose to replace both normally at the same time.

We'll agree to differ Si. You've never tried a 16/44 and I've never tried a 15/42 so neither of us really know whats best. However the OP has a Gen 2 so what we have on ours is pretty irrelevant for him.


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legend88 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote legend88 Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 2018 at 09:20
As Si says, 15/42 is almost the same as 16/44 (In fact there is less than 2% difference). It doesn't matter who has tried what (Or not) it's engineeering fact that they are (Almost) the same so will behave the same on the bike. So don't mess around wasting money on trying another combination that will give you the same result as you already have.

Do take on board ConTRo13r's point as well though as re chain wear etc.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote deloco7 Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 2018 at 10:07
Legend88,

Ok fair enough, but why in that case if they 2 are so close, do so many people change to a -1/+2 set up. If its the same and obviously cheaper then whats the point of going larger on the rear? 


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Si McMille View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Si McMille Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 2018 at 10:11
My honest opinion - because ppl just go with what there told.

But with doing homework and finding stuff out yourself you realise that there more than 1 way to skin a cat (forgive my punn)..

If you have a perfectly good rear sprocket, why change it, but if it’ need replacing might aswell go for a larger posher one. 👍
2001 RP Mille
15/42 gearing
54mm tb’s
54mm Evo stacks - dual velocity
Evo air box with K&N
Unrestricted intake boot
Custom Collector Mod
Evo Ti Exhaust
Aprilia EPROM
PC3
Tuono riser conversion
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deloco7 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote deloco7 Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 2018 at 10:21
Originally posted by Si McMille Si McMille wrote:

My honest opinion - because ppl just go with what there told.

But with doing homework and finding stuff out yourself you realise that there more than 1 way to skin a cat (forgive my punn)..

If you have a perfectly good rear sprocket, why change it, but if it’ need replacing might aswell go for a larger posher one. 👍

Interesting and quite possibly very true Si. I've still never heard of anyone keeping the 42 rear tho Wink 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote legend88 Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 2018 at 11:38
Originally posted by deloco7 deloco7 wrote:

Legend88,

Ok fair enough, but why in that case if they 2 are so close, do so many people change to a -1/+2 set up. If its the same and obviously cheaper then whats the point of going larger on the rear?


Personally I would prefer going -1/+2 than just -2 at the front becasue of the issues (discussed above) with small front sprockets. Now, many people have done this and apparently have no issues at all so maybe it is a bit of over cautiousness and of course with the relatively low miles that most (Although not all) of us do on these bikes wear probably isn't too much of a concern. The other potential issue as you go ever smaller on the sprocket size i that it becomes easier to flip a chain if the tension isn't spot on.

It's all a matter of undertanding what you intend to do an evaluating the benefits and potential consequences. If you aren't sure ask people WHY they are doing something and HOW that improves things, not just what to do.

When I was growing up and throughout my education, I was always advised to ask WHY of everything so that I understood rather than just blindly memorising information. It sometimes irritates the people you talk to mind!  WinkLOL



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Post Options Post Options   Thanks (0) Thanks(0)   Quote Si McMille Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 2018 at 11:45
Exactly, if o don’t understand something I will question it to death.

What’s the degree of chain on a 16/44 compared to a 15/42? I can gues it will be very minimal, but there guys that go 15/43-44 even 45.. that serious stunt gearing. Lol
2001 RP Mille
15/42 gearing
54mm tb’s
54mm Evo stacks - dual velocity
Evo air box with K&N
Unrestricted intake boot
Custom Collector Mod
Evo Ti Exhaust
Aprilia EPROM
PC3
Tuono riser conversion
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Si McMille View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Si McMille Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 2018 at 13:00
Ok..

Just been on sprocket commander and compared both sprocket setting.

16/44 110chain
15/42 108chain

Both chains rotate practically the same distance as each other over a mile.

From sprocket - sprocket they measure within .3” of each other.

Both chains calculate roughly the same ware rate, but the 17/42 stock has the least ware of all (stock).

So if you ask me don’t replace the chain and rear sprocket if you don’t have to, just drop the front to a 15, but if they all require replacing, do them all.
2001 RP Mille
15/42 gearing
54mm tb’s
54mm Evo stacks - dual velocity
Evo air box with K&N
Unrestricted intake boot
Custom Collector Mod
Evo Ti Exhaust
Aprilia EPROM
PC3
Tuono riser conversion
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irish aprilia View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote irish aprilia Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 2018 at 13:02
What's the advantage of dropping the front tooth -1
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Post Options Post Options   Thanks (0) Thanks(0)   Quote budd Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 2018 at 13:44
Originally posted by irish aprilia irish aprilia wrote:

What's the advantage of dropping the front tooth -1


Basically makes it more pleasant to ride in the lower gears and a bit livelier throughout the rev range, for sure it lowers potential top speed from aprox 178 but really this isn't an issue in practise.

To add to the discussion I'm currently on 15/42 after running 15/44, I found the latter 'to' lively lifting the front out of corners to easily and the sub 150 top end wasn't enough also when I tried a 60 profile rear supercorsa it wouldn't fit in the in swing arm !! I switched back to 42 rear to allow tyre clearance and found it preferable to 15/44, I am a bit concerned about the possible extra chain wear due to the 15T front sprocket so I'll be switching to a 16T front, initially with the OE 42 rear but I'll probably try the 16/44 combo just because I already have a 44t rear and it's broadly similar to my current 15/42 setup but kinder on the chain. I think maybe for me the prefect setup would be 16/43, it offers just over 160 top end and should still give the low speed benefits but without been to wheelie prone.
      
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Post Options Post Options   Thanks (0) Thanks(0)   Quote legend88 Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 2018 at 13:46
I've posted this before but some who haven't seen it may find it interesting:






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Post Options Post Options   Thanks (0) Thanks(0)   Quote Si McMille Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 2018 at 14:06
The chain ware on a 15/42 would only be marginal compaired to a 16/44..

16/44 has a marginal taller gearing, and I mean a ‘bee’s wing’ marginal..

For smaller front sprockets we are talking in extreme conditions like dropping to a 14 or 13 front or even going up to a 45 rear on a 15 front. There extreme cases..

Both configurations with there designated chain have practically the same values as each other.
2001 RP Mille
15/42 gearing
54mm tb’s
54mm Evo stacks - dual velocity
Evo air box with K&N
Unrestricted intake boot
Custom Collector Mod
Evo Ti Exhaust
Aprilia EPROM
PC3
Tuono riser conversion
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Diablo Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 2018 at 14:19
Originally posted by legend88 legend88 wrote:

I've posted this before but some who haven't seen it may find it interesting:








I was just looking for that!! Big smile
Question everything.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Diablo Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 2018 at 14:25
Didn't some of the RSVR's come with a 16 tooth front sprocket taped under the seat?

I heard that the 17/42 gearing was to get round some of the noise regs?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote legend88 Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 2018 at 14:32
Originally posted by Diablo Diablo wrote:

Didn't some of the RSVR's come with a 16 tooth front sprocket taped under the seat?

I heard that the 17/42 gearing was to get round some of the noise regs?


I heard that, in fact I think it was one of Ian G's posts that suggested that the 'R' versions came with  one. However I have an 01 RSVR that I bought new and I never found one. Maybe the dealer half inched it!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Diablo Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 2018 at 14:43
Originally posted by legend88 legend88 wrote:

Originally posted by Diablo Diablo wrote:

Didn't some of the RSVR's come with a 16 tooth front sprocket taped under the seat?

I heard that the 17/42 gearing was to get round some of the noise regs?


However I have an 01 RSVR that I bought new and I never found one. Maybe the dealer half inched it!



Their mechanic suddenly started pulling monstrous wheelies on his stock RSV.... LOL LOL

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Post Options Post Options   Thanks (0) Thanks(0)   Quote mwlehman Quote  Post ReplyReply Direct Link To This Post Posted: 24 Feb 2018 at 21:15
my wife and I are both running 16/44 on rsv1000r gen 2 and tuono gen 1..she thinks she is quicker than me..
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