Chain Problem/ New Chain Suggestions.

Hank_Thrill
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Hank_Thrill
Edited Date/Time 1/27/2012 7:30am

Okay, I noticed on my masterlink, the round part of the chain, between the two links is busted. It's the round part that spins around the pin of the chain that is broken, and a part that comes in contact with the sprockets. I hope that makes sense. I get the feeling I need to replace this link, or chain as fast as possible.

I'm thinking about just buying a new chain though. I was wondering if there are some good ones that are super cheap. I don't need to spend 60 dollars on a chain, and I really can't afford it at this time.

I also heard if you replace chains, you should go ahead and replace sprockets. Does this statement hold any merit?
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CamP
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CamP 4/17/2010 6:00am
4/17/2010 6:00am
Unfortunately, good and cheap usually doesn't describe any chain. I picked up a new DID 520ERT2 off ebay for $50 recently. Maybe the guy still has some. You'll need new sprockets at the same time. I'd suggest a set of steel Sunstar's.

That will be a long lasting combo that won't break the bank.
50dippin
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50dippin 4/21/2010 11:35pm
4/21/2010 11:35pm Edited Date/Time 4/21/2010 11:36pm
^^Always get new sprockets with a new chain, it will all last much longer.

btosports.com has some good sprocket chain combos, add in the coupon code matthes for another 15% off.
lumpy790
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lumpy790 4/22/2010 5:51am
4/22/2010 5:51am
Sounds like your chain is done and more than likely so are your sprockets. If you are on a tight budget......Get a good chain and cheap sprockets. The chain wearing/stretching is what wears out the sprockets. Always replace as a set.

I have had great luck with a Moose chain. Its a high quality Regina chain in a Moose box!
-eagle-
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-eagle- 4/22/2010 10:40am
4/22/2010 10:40am Edited Date/Time 4/17/2016 10:19pm
If you are on a budget and aren't worried about rotation weight:
Keep it real and go steel.
Then throw on an o ring and you will get 3 times the life out of your chain & sproks.

The Shop

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burnside
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burnside 4/27/2010 9:28am
4/27/2010 9:28am
My front sprocket needs replacing, but the chain + rear sprocket seem to be in OK shape still.. Is it OK to just replace the front sprocket? Or is it advised to do the lot at once?
Hank_Thrill
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Hank_Thrill 4/27/2010 11:32am
4/27/2010 11:32am
burnside wrote:
My front sprocket needs replacing, but the chain + rear sprocket seem to be in OK shape still.. Is it OK to just replace the front...
My front sprocket needs replacing, but the chain + rear sprocket seem to be in OK shape still.. Is it OK to just replace the front sprocket? Or is it advised to do the lot at once?
Everybody seems to say to do it all at once. But if everything else seems fine, I don't see any harm in it. I guess it depends on what type of bike you ride too. People on 450's seem to go through a lot more gears and chains than 125cc riders.
lumpy790
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lumpy790 4/27/2010 4:28pm
4/27/2010 4:28pm
a chain and sprockets wear together as the chain stretches it spreads the teeth of the sprockets. Replace on of the 3 pieces and the new part will quickly wear just like the piece it replaced.
burnside
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burnside 4/28/2010 3:17am
4/28/2010 3:17am
burnside wrote:
My front sprocket needs replacing, but the chain + rear sprocket seem to be in OK shape still.. Is it OK to just replace the front...
My front sprocket needs replacing, but the chain + rear sprocket seem to be in OK shape still.. Is it OK to just replace the front sprocket? Or is it advised to do the lot at once?
Hank_Thrill wrote:
Everybody seems to say to do it all at once. But if everything else seems fine, I don't see any harm in it. I guess it...
Everybody seems to say to do it all at once. But if everything else seems fine, I don't see any harm in it. I guess it depends on what type of bike you ride too. People on 450's seem to go through a lot more gears and chains than 125cc riders.
Yeah it is a RM125, the front sprocket seems a lot worse than the chain + rear sprocket, like you can visibly see a couple of the teeth kind of warped backwards. But cash is a bit tight to replace the whole lot right now! I need an irate moto-dad with loads of money! haha.
lumpy790
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lumpy790 4/28/2010 6:26am
4/28/2010 6:26am
If its that bad now run what you have till you scrape up the $$ otherwise you are wasting $$ by putting a sprocket on it. Grab the chain at the back of the rear sprocket and pull it outward. If you can pull it out more than 1/8th it trash.
pie8man
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pie8man 4/28/2010 8:11am
4/28/2010 8:11am Edited Date/Time 4/17/2016 10:27pm
If your front sprocket has misshaped teeth you need to replace it all. It has been run too long on a stretched out chain. Check out this link as it appears you can get an entire setup (steel sprocks and standard chain) for $70. This setup will last you longer than a $70 chain on your old sprockets, especially on a 125. If you can afford an upgrade to an o-ring chain do it. If you do not get an o-ring chain make sure you get good chain lube and use it religiously. With o-ring chains chain lube only lubricates the sprockets and the outside of the rollers on the chain but with standard chains it eventually lubes the whole kit and caboodle. It is best to lube your standard chain after a short moto when the chain is hot so that the lube gets to where it needs to go. I always lubed mine at the start of the day, after every moto and immediately after the last ride because it helps prevent water from getting into the chain during washing (never spray the chain directly with water, before I ran o-ring chains I always took my chain off before a bike wash. Usually when the roller on a master link breaks (which is what I think you described) it is because it is either too old, was installed incorrectly or did not get lubed properly or often enough.
http://www.motosport.com/dirtbike/product/TURNER-STEEL-SPROCKET-CHAIN-K…
burnside
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burnside 4/28/2010 11:48am
4/28/2010 11:48am
pie8man wrote:
If your front sprocket has misshaped teeth you need to replace it all. It has been run too long on a stretched out chain. Check out...
If your front sprocket has misshaped teeth you need to replace it all. It has been run too long on a stretched out chain. Check out this link as it appears you can get an entire setup (steel sprocks and standard chain) for $70. This setup will last you longer than a $70 chain on your old sprockets, especially on a 125. If you can afford an upgrade to an o-ring chain do it. If you do not get an o-ring chain make sure you get good chain lube and use it religiously. With o-ring chains chain lube only lubricates the sprockets and the outside of the rollers on the chain but with standard chains it eventually lubes the whole kit and caboodle. It is best to lube your standard chain after a short moto when the chain is hot so that the lube gets to where it needs to go. I always lubed mine at the start of the day, after every moto and immediately after the last ride because it helps prevent water from getting into the chain during washing (never spray the chain directly with water, before I ran o-ring chains I always took my chain off before a bike wash. Usually when the roller on a master link breaks (which is what I think you described) it is because it is either too old, was installed incorrectly or did not get lubed properly or often enough.
http://www.motosport.com/dirtbike/product/TURNER-STEEL-SPROCKET-CHAIN-K…
Thanks a lot for the info in here guys. Appreciate it and sorry to hijack your thread Hank! Cheers for the link too, sounds like a good option to go steel this time. Just need to find a shop in the UK.
Hank_Thrill
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Hank_Thrill 4/29/2010 9:57pm
4/29/2010 9:57pm Edited Date/Time 4/17/2016 10:30pm
Thanks guys, I ended up getting a chain last week, and my sprockets came in today. I got some primary drive steel sprockets. They had good reviews, super cheap, and should last a super long time (especially considering i'm on a 125).


AND PLUS!


My rear 48t sprocket wasn't too worn out, but my front sprocket was pretty shot. What's crazy, is the bike's stock gearing is 13/48. All the test reviews I read said to go up one or two teeth on the rear. When I took everything apart, I noticed the front counter-drive sprocket was a 12tooth - which is RIDICULOUS!!!!!!


Anyways, the bike takes off like a ROCKET now with the 13/50 gearing compared to the 12/48. I think whoever bought the last sprocket on that bike got confused. I don't know why anyone would want a 12t front sprocket on it.
Kinetic1
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Kinetic1 4/30/2010 5:31am
4/30/2010 5:31am
Going from a 13 tooth to a 12 tooth front is like going three (not quite) teeth bigger on the rear sprocket.
RACEGUY
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RACEGUY 4/30/2010 1:37pm
4/30/2010 1:37pm
...and the 12t will wear much more rapidly and stress the chain more.
Hank_Thrill
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Hank_Thrill 4/30/2010 8:57pm
4/30/2010 8:57pm
Kinetic1 wrote:
Going from a 13 tooth to a 12 tooth front is like going three (not quite) teeth bigger on the rear sprocket.
I think it's like going 3 teeth smaller on the rear, which is why my bike takes off a ton faster now!
RACEGUY
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RACEGUY 5/1/2010 10:09am
5/1/2010 10:09am
Kinetic1 wrote:
Going from a 13 tooth to a 12 tooth front is like going three (not quite) teeth bigger on the rear sprocket.
Hank_Thrill wrote:
I think it's like going 3 teeth smaller on the rear, which is why my bike takes off a ton faster now!
Going one smaller at the countershaft would be the equivalent to adding almost 3 teeth to the rear (shorter gearing).

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