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Discussion Starter #1
So I decided that the Brute is a little bit too 'go,go,go, now more throttle faster you bastid accelerate - is that all you've got?'

I'm getting old and felt the bike would be better with a gearing change - longer. 43 standard down to 41t

So - quick order from Ferracci $80 bucks for two teeth less - funny how less always costs more.

Round one saw them sending me a sprocket for a 750 which didn't fit. crap.
Round two fitted the 41t and couldn't take up the slack in the chain. crap.
Round three - got a new rivet master link cut out one link and bolted everything back up.

4000rpm is now 55mph. tank range has extended a bit - 20 miles to 140 per tank so 4mpg better

This is pretty much what I expected from 2 teeth less - not a huge difference but a change in the right direction - I may go 2 teeth smaller yet to a 39, the bike still has a huge amount of power available and has become a bit more liveable on a day to day basis and is certainly more relaxed on the freeway. I like it :)
 

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Is that an OEM sprocket? If so what is the part number?

The ones on their website looks aluminum, the one pictured look like steel.

I've been wanting to do exactly what you have done for some time but haven't gotten around to it.
 

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Discussion Starter #3
The ferracci sprocket is aluminum - emoto have gold anodised aluminum.

I wasn't too worried about longevity - and I couldn't find steel for a reasonable price.

I may yet pony up for the 39T and try that. Just remember to get a master rivet link so you can cut your chain to fit.

and measure your ride height before and after to avoid handling abnormalities
 

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I too have made this exact change! I ordered a 41T Talon rear sprocket (eMoto), Had to have 2 links removed but... it is an improvement. The abrupt throttle is less as well!

First time I rode the Brutale, I knew it was geared way too short (IMO). Now, I think it's perfect! .....and it still goes like stink!
 

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Do you have a picture of the new sprocket? The one you posted looks like the stock sprocket.
 

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look at my album.... extra large pics!
 

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I have been riding a 910s and feel much the same. Made the switch to a 39 but haven't seen what it's like yet. On paper, it seems like it might be about right.
 

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Discussion Starter #8
Sherpa - when you ride it with the 39 I'd like to know what rpms you are pulling at 65mph - thanks
 

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quacker998 said:
Sherpa - when you ride it with the 39 I'd like to know what rpms you are pulling at 65mph - thanks
Will do. I put the 43 on the F4 1000 and that thing is like a total rocket. more than 3/4 throttle anywhere in the rev band in 2nd and that front wheel is off the ground.

I know that it's counterintuitive but for whatever reason, it's a lot more fitting to have that gearing on the F4, imo, than on the Brutale. The position on the F4 helps me use it as lot better than the position on the 910 ever did. I can lean forward and reall use a lot of that accel. On the Brutale, I would feel like I'm getting pulled off the bike.
 

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How are you calculating your speed? GPS? Mile markers?

The Brutale's speedometer like all modern bikes is calculated off the RPM sensor.
 

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Discussion Starter #11
yeah that's a good point. So my speedo is now probably spot on.
Are the electronics taken off the crank or the gearbox output shaft?

regardless the gearing seems a little more 'balanced' with the engine and I like it.

I'd still like to know what the 39 is like.
 

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Discussion Starter #13
yeah but adjusting the chain for the correct tension after the sprocket change may..... so it's a good idea to measure ride height before and after.
 
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