Chain and sprocket upgrade

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Ou Krokkedil

Pack Dog
Joined
Mar 10, 2014
Messages
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Location
Dorandia Gauteng
Bike
BMW F700GS
My 700GS is now close to its 30k service, I was wondering when do I need to change sprockets and chains?

I don't ride very hard and is still on the original tyre for the rear the front got damaged by a nail.

I looked at gear commander and the bike has a 17/42 sprocket combination, but when I select 19/41 it gives me the best wear figures and also the best RPM at 120km/h

How much torque will I loose if I go 2 teeth up on the front?
I know that 19 and 41 are standard sprockets because the 19 comes off the 800R and the 41 comes from the 650GS so it wont be to difficult to source.


 
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