125-200cc 2003 WR 125.

Hi all. New to Husqvarnas and new to 2 strokes.

I have bought my daughter a superb 100th anniversary WR125. She loves it and I've had a ball riding it too despite me being 200cm and 115kg.

It will be due for new chain and sprockets soon. I've heard that O ring chains are a no no.

What chains would be suitable, and how many links? What sprockets?

Any tips will be most welcome.

We have had good luck with the O-ring chains. Depends on the brand and width as whether or not they will fit in the stock chain guide well. Aftermarket chain guides and you will be fine. Sprockets are personal preference and gearing opinions seen to vary drastically based on type of terrain and skill level. Also I think the 100th anniversary were actually 2004 model years, I know the math doesn't add up, but at least in the states they were 04's.

Hi, yes it's actually a 2004 plated model.

How do I determine chain width? Is that where the '520' come in? Any idea how many links long the chain needs to be?

Thanks in advance, Andrew