Front sprocket size

[ebow3d]

Do one get a sprocket thats bigger than 52 teeth?
I have a 8spd 105 groupset on my bike with a triple at front. Now, as a total noob to fitness cycling, I feel like I may actually go faster on downhills, or long straights. After a few kms of riding, my legs get simply too tired to peddle any faster :) , though it feels like I've still got some power left. Thus, with a bigger sprocket in front, I should be able to put in some more power @ the same cadence.
Does anybody know whether I can simply buy a bigger sprocket and replace my current 52 tooth?
Edit: I've seen there are 53 tooth available, but would one tooth more make a big difference?

[gclark8]

For a 130mm PCD outer chainring, Shimano do up to 56, TA go up to about 60, some others up to 80. Just how good are you? :eek:

http://www.specialites-ta.com/produits/plateaux_gb.htm

It is far cheaper to buy a Sunrace 11-24 8 speed cassette for the rear. ;)

[artemidorus]

Do one get a sprocket thats bigger than 52 teeth?
I have a 8spd 105 groupset on my bike with a triple at front. Now, as a total noob to fitness cycling, I feel like I may actually go faster on downhills, or long straights. After a few kms of riding, my legs get simply too tired to peddle any faster :) , though it feels like I've still got some power left. Thus, with a bigger sprocket in front, I should be able to put in some more power @ the same cadence.
Does anybody know whether I can simply buy a bigger sprocket and replace my current 52 tooth?
Edit: I've seen there are 53 tooth available, but would one tooth more make a big difference?

One tooth won't make a noticeable difference.

[Albert 50]

You don't say what rear you have, as a 1 less tooth at the rear will make a much bigger difference than 1 tooth larger front. eg 52/12 = 110 cadence at 60kph compared with 53/12 = 108. 52/11 = 101. 53/11 = 98. [all approx for a 23x700]