Question about gearing
 

Can somebody please advise me on which way to go should i change the front sprocket to a 16 or change the rear to a 43 as i am looking to change the cruising rpm of the bike normally ride about 80 ish has anyone done this and what were your findings ??

I changed the rear two 3 teeth lower than standard (ie 42 teeth from the standard 45) which is the same as going one up on the front.

Acceleration is affected a small bit but not much really. Before the standard gearing would at 70mph indicated only be around 64-65mph on gps, where as now with the non standard gearing at 70mph indicated it will now show around 68-69mph.

Before changing the gearing i couldnt sit at 80mph indicated due to vibs etc etc but not i can sit at an indicated 80mph which is really around 78mph no bother, the vibs are still there but not as much as before.

That might be the easiest way to change as i will soon need a rear tyre so will get a new sprocket at the same time .Did you have to alter the chain length (remove a link) or will the adjusters take out the extra slack??

Here is a good tool I use for gear ratios, choose your bike then play with different gear ratios to see what changes it makes.

http://www.gearingcommander.com/