I might put some 18's on my 02 blaster. If I do that I would want to go a tooth bigger on the front sprocket. What is stock tooth size? Are bigger front sprockets readily available?
What is the the sprocket tooth ratio?
- Thread starter turbowrenchhead
- Start date
13 on the front and you can easily get a 14 and it will ft. I have seen some use a 15 tooth front but they had to shave the case which i dont reccommend. Stock gears would be 14 front 40 rear. I run the 14/40 set up with my 18 inch tires and i love it but the 18 inch tires arent too good for heavy offroad riding cuz the blaster will sit alot lower.
Ratio is 1 in the front up to 3 in the rear down or 3:1 F/R
So, moving UP in the front to a 14 tooth sprocket is equivalent to moving DOWN in the rear to a 37 tooth sprocket.
I built a blaster gearing calculator you can use to see what the tires do to your overall speed, and you can decide on sprocket sets to keep the stockish top speed, which means your gearing is relatively the same, despite the smaller rears.
And honestly I wouldnt recommend 18s for anyone who didnt ride MX or very light terrain. You lose 1.5 inches of ground clearance between the swingarm guard and the ground to 18s (half an inch of ground clearance for every inch of tire you reduce from stock which is 21).
Gearing calculator is here: Gearing Calculator
To keep a really close gear ratio as stock, with 18s, youd need to run a 14t front and a 37t rear.
So, moving UP in the front to a 14 tooth sprocket is equivalent to moving DOWN in the rear to a 37 tooth sprocket.
I built a blaster gearing calculator you can use to see what the tires do to your overall speed, and you can decide on sprocket sets to keep the stockish top speed, which means your gearing is relatively the same, despite the smaller rears.
And honestly I wouldnt recommend 18s for anyone who didnt ride MX or very light terrain. You lose 1.5 inches of ground clearance between the swingarm guard and the ground to 18s (half an inch of ground clearance for every inch of tire you reduce from stock which is 21).
Gearing calculator is here: Gearing Calculator
To keep a really close gear ratio as stock, with 18s, youd need to run a 14t front and a 37t rear.
I never said stock was 14/40. I said moving UP to a 14 front is equivalent to a 37 rear.
I also said to get effective stockish gear ratio with 18s requires 14/37s
I also said to get effective stockish gear ratio with 18s requires 14/37s
heres where ya said it luni
you say "stock gears would be 14 front 40 rear" but i know ya ment 13
sorry guys, just realized that was a mistake and typo on my part. It was not luni it was me who posted 14/40 for stock.
STOCK IS 13/40....
STOCK IS 13/40....
i just flipped the sprocket around and i didnt have to shave my cases for my 15 and its been trouble free and ive raced it a handfull of times so its been tested lol
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