13-Tooth on an '05

How much more wear on the chain slider does a 13t front sprocket cause? Is it significant or is the bigger worry the tighter bend the chain would have to make? Also, who makes a good quality drive sprocket? I know opinions vary, but I'm curious to see what some of your experiences are...SC

13 is stock for the 250F, so I wouldn't worry. Moose and Sunstar are good. I am just replacing my front after 2 1/2 years of racing/riding.

I just put a Sunstar 13 tooth on last week. Too early to tell about wear, but I've been wondering the same thing as you, will have an idea within the next couple of weeks. Sure enjoyed getting out of first gear on some of the trails last weekend.

I am just replacing my front after 2 1/2 years of racing/riding.

You must not ride very often. I replace my front sprocket often.

It wears much faster than the rear and will stretch your Chain causing premature wearing on the rear. The front is allot cheaper to replace than the both sprockets and chain.

I run a 13 for the really tight stuff

get one of these,

t_16417.jpg

I have a 13t Renthal on mine. I'm not worried about the bend or premature wearing. I may throw a 51 or 52 out back for even more low end on the trails.

You must not ride very often. I replace my front sprocket often.

It wears much faster than the rear and will stretch your Chain causing premature wearing on the rear. The front is allot cheaper to replace than the both sprockets and chain.

I run a 13 for the really tight stuff

get one of these,

t_16417.jpg

FYI, mine is a 250 and I have 25 - 30 hare scrambles and many rides on it. Check my garage if you want to see some of the conditions I have been in.

13 tooth on the 450 is the way to go for woods riding, I typically get 2 years out of stock slider (and I ride alot) and then switch to TM designs slider, (well worth the $70.00 as is their guide :applause: ) I change out cahin and sprockets every April whether they need iot or not and I have not noticed any negative efect to running a 13T coutershaft sprocket. You'll love it, 3rd and 4th gear single track all day long!

Oh......... try Sprocket Specialists, always seen to work great for me!

Thanks for the tips guys. Since I ride a LOT of single track, I just picked up an Ironman 13t for the front. I'm going to be switching to a 120/100 on the rear, so it should more than compensate for the larger wheel diameter...SC

I just swapped to a 13t as well and love it but I am concerned about the new sprocket. It was all the shop had and looks a little cheap. The stocker is wider than what I have on now, and has what I guess you'd call shoulders beside the teeth that look like they help support the chain, looks like a good idea that would take some of the stress off of the pins.

Should I be concerned putting a sprocket on without that additional support, relying on nothing but the teeth for support?

I would just use a steel front sprocket. They are cheap and last a long time.

Thanks for the tips guys. Since I ride a LOT of single track, I just picked up an Ironman 13t for the front. I'm going to be switching to a 120/100 on the rear, so it should more than compensate for the larger wheel diameter...SC

Have you had a chance to ride with the 13 yet? I am thinking of going to one. When you install one do you need to do anything other than install it and adjust the chain?

I just pulled the wheel back a bit when I installed mine to tighten the chain up and so far I'm loving it. It puts me in second most of the time where I was shifting between first and second a lot before.

I've only had this bike about 3 weeks now. I'm just starting to get used to it. I find my self between 2nd and 3rd a lot. I was at a local place Sunday and tried a big 200' hillclimb that I was able to do on my CR250. I was in 2nd and killed it 3/4 the way up. This bike is heavy. I was pissed and tired at the end. I think I will be happy with it when I get set right and get used to it. I've been 2 stroke guy for a long time. But this 4 is pretty sweet.

I haven't had a chance to install it yet. I've been out of commission for a few weeks with a groin-type injury. I also ordered a new lock washer for the front sprocket that hasn't arrived yet. Hopefully I'll get out this weekend...SC

What is stock gearing on the 450, front and rear?

How much more wear on the chain slider does a 13t front sprocket cause? Is it significant or is the bigger worry the tighter bend the chain would have to make? Also, who makes a good quality drive sprocket? I know opinions vary, but I'm curious to see what some of your experiences are...SC

This might be a silly question but if chain slider wear is a concern why put on a smaller front sprocket......why not just put on a larger rear? Is there an advantage to going smaller in the front vs larger in the rear? :applause:

This might be a silly question but if chain slider wear is a concern why put on a smaller front sprocket......why not just put on a larger rear? Is there an advantage to going smaller in the front vs larger in the rear? :applause:

the only advantage is that it is cheaper. It is easier to fine tune the bike by adjusting rear first since it affects the overall performance less, it just costs more. I can't imagine they need to go down a tooth in the front, if in fact the 450 has a 14 front. What is the answer to my previous post?

This might be a silly question but if chain slider wear is a concern why put on a smaller front sprocket......why not just put on a larger rear? Is there an advantage to going smaller in the front vs larger in the rear? :applause:

cost and ease of installation!

What is stock gearing on the 450, front and rear?

14 50

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