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+--- Thread: Sorry - another gearing question (/showthread.php?tid=71903)
Sorry - another gearing question - Peasy - 20-03-15
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
Re: Sorry - another gearing question - Falcon 269 - 20-03-15
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.
Re: Sorry - another gearing question - dazza - 20-03-15
Mike, can you repeat that again for me please, was with you up until you said "simple" :lol
Re: Sorry - another gearing question - Peasy - 20-03-15
Thanks Mike, I think I get it now.
Back to standard cogs for me I think.
Re: Sorry - another gearing question - Falcon 269 - 20-03-15
(20-03-15, 03:39 PM)dazza link Wrote: Mike, can you repeat that again for me please, was with you up until you said "simple" :lol
Well done ... I lost meself just before the full stop after simple :lol
Re: Sorry - another gearing question - pilninggas - 20-03-15
surprised noones added:
www.gearingcommander.com - excellent way to model different gearing configurations.