Sorry - another gearing question

[Peasy]

hi all, gen 1 1000


I understand the std gearing to be 16/44


I've been doing some cleaning etc and found that the previous owner had fitted a 17/45 combination.


Sorry, I still to this day can't get my head around gearing so please could someone tell me in simple terms what effects this gearing has?


Also I noticed that the chain has made marks on the rubber on the sides of the front sprocket where the rounds of the side plates seem to be touching it.


I like things standard too so probably swap back to standard but would like to gain an understanding.


Cheers
Lewis

[Falcon 269]

I'll try to keep this simple.  Like me.

Reducing the size (number of teeth) on the front sprocket lowers the gearing, which means higher engine revs for a given road speed but quicker acceleration.  Also, it will increase fuel consumption at cruise speeds.

You have a larger front sprocket, though, which on its own would raise the gearing and give the opposite effects to the above. 

However, you also have a larger rear sprocket than standard which changes things again.  Stay with me.

Fitting a larger rear sprocket (more teeth) lowers the gearing, the same as fitting a smaller front sprocket.  In your case, the PO has done a bit of each. 

The extra tooth on the front sprocket has a greater overall effect than the single extra tooth on the rear, meaning you bike is higher geared than stock. 

In theory, you have a little less acceleration on tap but cruise rpm for a given speed will be lower, hence marginally better fuel economy. 

Usually if owners change the gearing on a Gen 1, then drop a tooth at the front - and possibly go up one or two in the rear - to make bike more responsive. 

I've never tried lowered gearing on mine as I'm perfectly content with how it performs on stock cogs.

 

[dazza]

Mike,  can you repeat that again for me please, was with you up until you said "simple" 

[Peasy]

Thanks Mike, I think I get it now.


Back to standard cogs for me I think.   

[Falcon 269]

Mike,  can you repeat that again for me please, was with you up until you said "simple" 

Well done ... I lost meself just before the full stop after simple

[pilninggas]

surprised noones added:

www.gearingcommander.com - excellent way to model different gearing configurations.