Brutale Sprocket swap - MVAgusta.net
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post #1 of 44 (permalink) Old 03-11-2009, 04:48 AM Thread Starter
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Brutale Sprocket swap

Before I try this has anyone else done it? I have a 2007 910r, 43T rear, I haven't looked at the front yet.

Maybe drop down to 41 rear?

I would rather NOT have to change the chain.

CAG
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post #2 of 44 (permalink) Old 03-11-2009, 08:35 AM
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CAG . I thought you went higher on the back to 45t. or is this to make is not as quick ? Just curious.

Would have thought the chain should be ok . only one way to find out . If its too slack you may need to remove a couple of links
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post #3 of 44 (permalink) Old 03-11-2009, 08:50 AM
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Quote:
Originally Posted by CAG View Post
Before I try this has anyone else done it? I have a 2007 910r, 43T rear, I haven't looked at the front yet.

Maybe drop down to 41 rear?

I would rather NOT have to change the chain.

CAG
I have always thought the 910R could do with a smaller rear sprocket.Cruising around in top its pulling way too many revs.Always trying to change up another gear.Feel it has the power for a smaller sprocket.
I sourced a hard anodised version and was advised to drop to a 42 if I did not want to remove links.41 will almost certainly require the removal of a link.If the 42 is not enough then I will try a 41 and remove a link.Sprockets are pretty cheap and available in whatever size I need.
Have not actually fitted the new sprocket as I am swapping out the rear shock for a Nitron unit,and fitting the MVCorse TI exhaust and changing tyres F+R,pads oil/filter etc etc.Weather is still rubbish in Uk so in no great hurry.Will be a few weeks and will report back.If you try the 41 let us know ,could save me fitting the 42 and having to change it.
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post #4 of 44 (permalink) Old 03-11-2009, 09:27 AM Thread Starter
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Quote:
Originally Posted by blackie View Post
CAG . I thought you went higher on the back to 45t. or is this to make is not as quick ? Just curious.

Would have thought the chain should be ok . only one way to find out . If its too slack you may need to remove a couple of links
Not I, sir. I find the revs way too high as it is.
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post #5 of 44 (permalink) Old 03-11-2009, 09:38 AM
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Link removal

I have an 06 910s & dropped from a 43t to a 41t & had to remove a link. Still plenty of pull, but throttle response is much more managable now.

06 910S / Matris Damper / Arrow Mid Pipe / CRG Mirrors / Moto License Plate Relo & Bar Ends / Frame & Axle Sliders / Ohlins Rear Spring / 41 tooth rear sprocket / Custom Seat
03 HD V-Rod

"If you don't know where you're going, any road will take you there"... George Harrison
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post #6 of 44 (permalink) Old 03-11-2009, 11:13 AM Thread Starter
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Great, thanks!

Any recommendation for a link breaking tool. (I've never had to take a chain off with the thought of putting it back on.

CAG
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post #7 of 44 (permalink) Old 03-11-2009, 01:57 PM
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Could you not just go down/up on the front sprocket or will that put more strain on the chain ?
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post #8 of 44 (permalink) Old 03-11-2009, 02:44 PM
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I'm also running a 41 rear on a 910s. Replaced chain with a gold chain with one less link than stock.

Bike History:
'88 Ninja 250 > '92 GSXR-600 > '01 YZF-R1 > '06 Brutale + '07 Customized VTX-1300
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post #9 of 44 (permalink) Old 03-11-2009, 03:42 PM Thread Starter
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Quote:
Originally Posted by blackie View Post
Could you not just go down/up on the front sprocket or will that put more strain on the chain ?
I think I could go down one on the front. But I think I would have to go to the 14 tooth from a 750 and that takes the 520 chain.

If someone knows for sure please let me know.

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post #10 of 44 (permalink) Old 03-11-2009, 04:18 PM
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Quote:
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I think I could go down one on the front. But I think I would have to go to the 14 tooth from a 750 and that takes the 520 chain.

If someone knows for sure please let me know.

CAG
CAG the standard front sprocket on the 910R is a 15tooth.Going UP on the front sprocket one tooth (to a 16) will have the same effect as dropping 2-3 teeth on the rear (to a 41-40)
Front sprockets are available in 14 /15/16 for the 910R ie in the correct 525 chain size.
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