Sprocket sizing

[ole buddy]

Hello,

              I recently bought a 99 Tiger and I really enjoy it. I wanted to put this question out there and see what y'all think. At 70 mph the revs are at 4800 - 5000k. I am getting 36 miles to the gallon at that rate. I wondered if that was normal? Also, what are the factory specs on the sprockets? Has anyone ever tried adjusting sprocket sizes for lower revs. if so, what are the recommendations? Thanks

[MARKC]

I put a 19t sprocket on my 900 and 955 Tiger and it drops the revs by around 500. Loses a little in acceleration,but makes sustained high speed use less frantic. Have not worked out how this effects fuel use

[ghostbiker955i]

I went the other way and gained about 400 revs :) Makes better town/offroad/fun riding but a little buzzy on long Mway trips. fuel econ droped a little but that was more likely because of i was using it harder than before.





For Mpg go up a tooth on front

For Spg go down a tooth :)



(Spg = Smiles ber gallon)

[Chris Canning]

I did the same as Mark C,on both models,with the offroad pipe,K+N filter and the airbox mod,found performance was exactly the same even pulling an extra tooth,just less revs to do it.

[GatorTiger]

Got 19 front and 44 rear on mine. Can cruise 70 at about 4200... Forget about wheelies, though... Have been offroad with it and works great! Just stay in first for everything! ;-)



Have the offroad tune with the stock exhaust and get about 45 mpg on average. Not too shabby...

[tomla]

i run a 19/47 for the street and switch to 18 up front for the dirt

[geotiger]

Along these lines, I was wondering if you go to different sprockets does that affect your speedometer and odometer readings?



If so then we need to be sure to put the correction factors in when we are figuring new mileages and stuff.

[GatorTiger]

Along these lines, I was wondering if you go to different sprockets does that affect your speedometer and odometer readings?

On the girlies the speedo sensor is on the front wheel and works totally separate from the sprockets. No mod needed...



Cheers,

HG

[iansoady]

The speedo runs off the front wheel so no.

[geotiger]

Along these lines, I was wondering if you go to different sprockets does that affect your speedometer and odometer readings?

On the girlies the speedo sensor is on the front wheel and works totally separate from the sprockets. No mod needed...



Cheers,

HG

Ah, well thanks.  



Stupid is now leaving the building............

[Guest]

I put a vote in for a 19T front.

Along with a K&N air filter and Irridium plugs I now get another 20 miles before the fuel light comes on. And it still works OK going up steep dirt hairpin bends.