Front sprocket gone.
#1
I was riding around today and then all the sudden "grttthhhhhh"it sounded like the gears grinding, but it was the chain slipping over the front sprocket teeth.So now Im going to get some new sprockets.I was wondering if I went down 2 sizes(from stock)on the rear sprocket, and then I went up 1 on the front sprocket, would I have more top end, and more accelaration, or would it canbcel out and have around the smae speed I do now?
#2
If your machine is a 4x4...wait for some Polaris guru answer, but I'd say to go the same, otherwise your front wheels will engage too soon/too late/always/never.
If it's 2 wheel drive, then the ratio your sprockets give you is the rear divided by the front (number of teeth). Say you have 14 in front and 41 in rear, you have a ratio of 41/14=2.93 2.93...what's that? It means that when your driving shaft has completed 2.93 turns, your axle (wheels) have completed 1 turn. Taking for granted that your machine has the power (torque) to those wheels, by decreasing the ratio, you will gain top speed (and loose acceleration), and vice versa, if you increase this ration, you will loose top speed and gain acceleration.
You said you "wanted" to go up 1 tooth in front and down 2 on the rear. Following my previous exampe, your ration would drop to 39/15=2.20...It's actually impossible to determine what effect it will have since you have a strap machine (with a gearbox engine, you can determine engine rpm at different speeds and gears,and see if ti looks correct).
Anyway, this is gonna make too much of a difference, and depending on your machine, it won't handle the tall gearing...unless you reclutch...
I'd say add 1 tooth in front, and see how it runs.
But changing both in the same time, with the same effect (taller gearing) will be too much for your machine (unless you have a scram 2x4...others engine that could handle this difference are (to my knowledge) all 4x4 or not powerful/torquy enough to handle it, and you'll end having trouble to gain speed (unless you reclutch).
If it's 2 wheel drive, then the ratio your sprockets give you is the rear divided by the front (number of teeth). Say you have 14 in front and 41 in rear, you have a ratio of 41/14=2.93 2.93...what's that? It means that when your driving shaft has completed 2.93 turns, your axle (wheels) have completed 1 turn. Taking for granted that your machine has the power (torque) to those wheels, by decreasing the ratio, you will gain top speed (and loose acceleration), and vice versa, if you increase this ration, you will loose top speed and gain acceleration.
You said you "wanted" to go up 1 tooth in front and down 2 on the rear. Following my previous exampe, your ration would drop to 39/15=2.20...It's actually impossible to determine what effect it will have since you have a strap machine (with a gearbox engine, you can determine engine rpm at different speeds and gears,and see if ti looks correct).
Anyway, this is gonna make too much of a difference, and depending on your machine, it won't handle the tall gearing...unless you reclutch...
I'd say add 1 tooth in front, and see how it runs.
But changing both in the same time, with the same effect (taller gearing) will be too much for your machine (unless you have a scram 2x4...others engine that could handle this difference are (to my knowledge) all 4x4 or not powerful/torquy enough to handle it, and you'll end having trouble to gain speed (unless you reclutch).
#4
Well Im going to be getting the CRC Stage 1 kit, maybe when I get the sprockets, so if I get it when I get sprockets I will go down 2, and up one in front, but if I dont get the kit I will just go down 2 in back.By the way when I go down 2 in back how much top end will I gain?
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joeyupton
Polaris Ask an Expert! In fond memory of Old Polaris Tech.
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Jul 14, 2015 11:51 AM
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