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Posted

13 in front gave you more "lowend" but 40 in the back gave you tad "topend" back.. so you should be good with the tires.. taller tires give more "topend" .. just fyi thou 1 tooth in front is almost same as 2.75 teeth in the rear..

Posted

Here's a quickie for ya...

 

smaller sprocket in front = more power

bigger sprocket in front = more speed

 

smaller sprocket in rear = more speed

bigger sprocket in rear = more power

 

taller tire = more speed

shorter tire = more power

 

1 tooth difference on front = 2 to 3 tooth difference on rear.

 

So if you go from a 13 to a 14 in front its the same as going from a 43 or 42 to a 40 in the rear.

 

For me, as a general rule of thumb for myself I do a 2 or 3 tooth change out back for every 2" of tire change. So if I go from my 20" paddles to my 22" paddles I will add 2 teeth to the rear sprocket to get the same average ratio. I really have no idea if I am keeping the same ratio, but seat of the pants it seems to maintain the same average speed and power with that change.

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