Jump to content
Sign in to follow this  

New chain and sprockets.. anything else?

Recommended Posts

Hey guys.. havent been on here in years but had a quick question for the EXC gurus.

I have an '05 400EXC and im going to do the chain and sprockets over the winter. I am looking for recommendations on brand and more-so, what else do you recommend replacing while the stuff is off.

Chain roller?

Brakes?

seals/bearings?

axle?

Looking at a DID 520 X-ring (120 overkill?)

and at a loss for sprocket.

I dont go crazy on the trails and dont jump. Mostly sandy, dirt, mud, little logs, hill climbs.. pretty mellow. (Ganaraska if anyone is familiar)

Thanks!:smirk:

Share this post


Link to post
Share on other sites

Steel sprockets seem to last longer and give a chain better life span. 14 tooth in the front is the minimum for me. 13T wears out quickly- too quick for me.

Rear- JT rear sprockets look good. I just got a pair for both sets of wheels.

Front- Renthal or Sunstar,

Chain- I bought DID VM X-ring. There are a lot of DID, Renthal, Tsubaki, Regina etc. They are rated, and 8100 lbs would be a good minimum strength value.

Share this post


Link to post
Share on other sites

If you want a long lasting sprocket set, I would go with Ironman front and rear sprockets. Ironman are $$ but they guranteed for 1 year. I had an O ring chain and ironman set last over 2.5 years of riding. Renthals aren't worth the $$, they have a very short life.

I've had good luck with RK, DID and Tusbaki chains, go with an O ring or X ring chains. I would also look at your chain guide block and your plastic chain rollers to see if they need to be replaced. If the wheel bearings have never been replaced, IMO I would replace both front and rear wheel bearings.

While you're working on the wheels you might as well change the brake fluid too.

Share this post


Link to post
Share on other sites

The last few years i have been buying the rocky mountain steel sprocket kit.I just upgrade for a brand name o-ring chain.They last just as long as the $150 set at about $70 bucks.

Share this post


Link to post
Share on other sites
The last few years i have been buying the rocky mountain steel sprocket kit.I just upgrade for a brand name o-ring chain.They last just as long as the $150 set at about $70 bucks.

Interesting, I've heard that from local guys.

So much depends on how much time you put on the bike and rider level. I gauge it on a 3,000 mile lifetime, spending about $175 for chain and sprockets on the 450.

13T front chopped chain life to about 2,000 miles with 2 fronts for a rear sprocket and new chain.

I removed the shock for tightest or shortest distance sprocket to sprocket. Replaced the shock and put the bike on the stand with back wheel up. I then cut a piece of angle iron and placed it behind the top swingarm plastic so it removed all chain slack except a slight movement. I can run the chain over it with consistent tension on the VM DID. Lots of loose spots on other types of DID and Renthal.

Does it make a difference in the short or long run? Who the hell knows? More important to have correct chain tension and alignment for the life of any chain I reckon.

I'll post some pics.

Bored to death. Perfect riding weather and the Tundra fried it's console computer. It's the module Toyota technicians say never goes out.

Share this post


Link to post
Share on other sites

awesome.. thanks guys. I think i'll give the Rocky Mountains a shot.. at that price its worth a go.

Share this post


Link to post
Share on other sites

1. Use of the angle gauge W/ tire off the ground.

2290187430043787466NxnHsz_th.jpg

2.Vise grip on 1/4" AL straight edge.

2040481320043787466DAvEli_th.jpg

3. Get some help if necessary.

2802716060043787466QvmbSO_th.jpg

4. The required drill for setting tension and building a gauge. After the shock is replaced with wheel off the ground, measure and construct your gauge.

2782998320043787466RKsZta_th.jpg

The gauge will work fine, still need to check sprockets for wear and chain for cleaning/lubing. KTM marks on the swingarm are very accurate for some, not for others. For the alignment tool anything straight up to 14" will work. Just bore 2-5/16" holes for the 1" bolts to line up with chain pins.

Happy Motoring

Share this post


Link to post
Share on other sites

GP bikes have a show discount of 15% on all parts. I bought the KTM 50T rear, aluminum center and steel outer, supposed to last 3 times longer than the original one.

You dont have to go to the show to get the discount, just call their showroom.

For my 530 I am going to run 15/50 (R=3.33). seems like a good mix for me at the Ganny.

I stock was 15/45 (R=3), way to tall for trail riding, changed it to 14/45 (R=3.215) which was a big difference and is good but a little high.

If I want even lower then i will go 14/48 (R=3.43)

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×