Sprockets

[green machine]

Righto you experts....gonna get an Xring tomorrow, was told i should get sprockets as well......done 27 hrs(trailrides) but not sure if mine are that worn so here are some pics,what do you think?
Cheers Steve

[theblacksmith]

they look pretty good to me man.Chains stretch sprockets dont.

[Ktmboy]

On the way out. Always replace the whole set as they wear together. Never replace the chain only.

Still got a bit of life still, maybe another 15 hours.

I'm just doing mine @ 60-70 hours. All depends what sort of riding though. MX maybe every 10-15 also depends on the kit.

[green machine]

On the way out. Always replace the whole set as they wear together. Never replace the chain only.

Still got a bit of life still, maybe another 15 hours.

I'm just doing mine @ 60-70 hours. All depends what sort of riding though. MX maybe every 10-15 also depends on the kit.

Yeah was planning to do sprockets and chain together but didnt want to spend up before i needed to....cheers i won't bother just yet......just seems like every time i ride i have to adjust the damn chain(lots of K-waka power surging through them i guess)hahaha

[takitimu]

Yeah was planning to do sprockets and chain together but didnt want to spend up before i needed to....cheers i won't bother just yet......just seems like every time i ride i have to adjust the damn chain(lots of K-waka power surging through them i guess)hahaha

I did the front only a few weeks back, though my chain was not stretching.

[B0000M]

agreed, looks good to me.

geez you cant've been riding it very hard!! keep an eye on that rear one though, alloy ones wear quite quick once they get going.

[green machine]

agreed, looks good to me.

geez you cant've been riding it very hard!! keep an eye on that rear one though, alloy ones wear quite quick once they get going.

Hahaha i'm just a novice but getting better by the ride:clap:

[flyingcr250]

i usually do two chains to one set of sprockets, by then they are quite sharky. lol

[LittleJohn]

I always replace as a set, then I know everything is sweet. If your sprockets are stuffed they will stuff your chain and vice - versa. Rather pay the extra $40 - 50 for the sprokets and not ruin a chain

[B0000M]

i usually do two chains to one set of sprockets, by then they are quite sharky. lol

intersting, i do 2 sets of sprockets to a chain. but i use x-ring chains. they seem to last a bizillion times longer than standard ones

[CRF119]

I do 2x DID Xring chains per set of Talon sprokets Its the chain that ruins the sprokets. $170 chian on a 450 last less then 30 hours till it is so stretched it bends the wrong way.

[camchain]

Always need to keep in mind the tiny front sprocket wears at a much faster rate and more chain wear is generated by the very tight turn around front. Plus huge load being concentrated on a small section of chain. To keep wear rate of set in balance I reckon front really needs to be kept in better condition than rest.

Front/rear teeth ratio usually about 3.5:1 so I got 3 front sprockets for my new set but I doubt that covers it. I'm guessing wear rate is unlikely to be directly proportional to ratio.

Worn front sprocket - you are the weakest link. Goodbye.

[B0000M]

Always need to keep in mind the tiny front sprocket wears at a much faster rate and more chain wear is generated by the very tight turn around front. Plus huge load being concentrated on a small section of chain. To keep wear rate of set in balance I reckon front really needs to be kept in better condition than rest.

Front/rear teeth ratio usually about 3.5:1 so I got 3 front sprockets for my new set but I doubt that covers it. I'm guessing wear rate is unlikely to be directly proportional to ratio.

Worn front sprocket - you are the weakest link. Goodbye.

spot on!

also fortunately the cheapest link too!

[takitimu]

spot on!

also fortunately the cheapest link too!

apart from the master link :), which I suspect you should change when you do the front sprocket.

[Mr Merde]

Looks like your chain needs a little oil

[B0000M]

apart from the master link :), which I suspect you should change when you do the front sprocket.

:lol: fine, lets get into the nitty gritty then........

[camchain]

spot on!

also fortunately the cheapest link too!

Cheers Boooom. Seems right to me but I'm always ready to recalibrate my view on any given subject though. KB is so good for that. Always different ways of looking at things.

Getting max life out of gear is getting more important as money tightens up. Before last year I just replaced stuff without thinking too much about it. But had always thought X ring chains dearer than they should be - I figured it should cost much the same to make any type of seal ring. But you X ring guys got me thinking seriously about it as I always seem to replace chains because of stuffed, tight links. Only one seal contact point can't be good (except for less drag/moving resistance). I've ground pins off old chains for a look inside and found these tight links only had traces of dry, cooked grease. Free moving link right next to a tight one still has good grease inside. See photo for shitty nitty gritty.

The X ring chain I recently replaced (was on bike when I got it) was stretched and stuffed but had no tight links. Old X chain was also noticeably a lot lighter than my O ring replacement. I hate extra weight and this was obviously a more expensive type of alloy.

BTW: Most will probably know this trick but you can do a quick and dirty chain test by pulling (rearwards) on chain at back of rear sprocket. If you can see more than half a sprocket tooth, chain is well stretched/worn out.

[barty5]

BTW: Most will probably know this trick but you can do a quick and dirty chain test by pulling (rearwards) on chain at back of rear sprocket. If you can see more than half a sprocket tooth, chain is well stretched/worn out.

thsi is what ive allways used.
Was lookin at my bike this morning still on orginal sprokets with a xring that went on when it was 4hrs old has now done 59hrs and still all looks sweet no major signs of any wear.

[FlangMasterJ]

Right I'm in a bit of a pickle. I just bought a brand new orange Talon rear sprocket, an OEM KTM counter sprocket and an RK o-ring chain. While trying to put the chain on I've fucked the clip. :pinch:

Can you buy these clips separately?

Does it have to be the exact clip for that model chain?

I'm bummed.

[barty5]

Right I'm in a bit of a pickle. I just bought a brand new orange Talon rear sprocket, an OEM KTM counter sprocket and an RK o-ring chain. While trying to put the chain on I've fucked the clip. :pinch:

Can you buy these clips separately?

Does it have to be the exact clip for that model chain?

I'm bummed.

yes you can buy spare links so dont be to bummed out just need to get the right one

you silly buger let me guess it all spread out and gose on loose i normaly use a small scoket and big grips to press on the link (compress the orings) then pliers too get the clip to click into place.

[FlangMasterJ]

you silly buger let me guess it all spread out and gose on loose

Bingo!

I had it compressed but obviously not compressed enough.

[B0000M]

the normal size vice grips work real well, they fit between the poeky out bits, then take the vicegrips off, the bit youve pressed on stays there, then just slide the clip on :)

[honda_power]

well i never replace them until they are missing teeth so they look fine to me

[Buddy L]

the normal size vice grips work real well, they fit between the poeky out bits, then take the vicegrips off, the bit youve pressed on stays there, then just slide the clip on :)

I used to use vice grips and plyers, untill i brought my DID chain breaker.
I find it the easyest way to squeeze up the chain and also push out the pins:headbang:

[kezzafish]

I used to use vice grips and plyers, untill i brought my DID chain breaker.
I find it the easyest way to squeeze up the chain and also push out the pins:headbang:

i want one

Where'd ya get it?

How much $ ?

[FlangMasterJ]

BUMPTASM!

Finally got my new chain and sprockets on. I went from a 48 rear to a 50. The front wheel now lifts in third with just a crack of the throttle :eek:

It's amazing how well the 250 can pull a 95kg guy.

Will be heading up the Karapoti in the next couple of weeks if anyones interested.

[kezzafish]

yeah mate i'm keen as, taking bookings now for Karapoti tours and crash lessons with a "fuck your bike" optional extra. How's Saturday 11 April sound (easter weekend) we go up toi toi and see if we can still get onto the Akatarawa enduro course. Gates were still open 2 weeks ago.

Humps in?

Ride it till the red in?

[FlangMasterJ]

yeah mate i'm keen as, taking bookings now for Karapoti tours and crash lessons with a "fuck your bike" optional extra. How's Saturday 11 April sound (easter weekend) we go up toi toi and see if we can still get onto the Akatarawa enduro course. Gates were still open 2 weeks ago.

Humps in?

Ride it till the red in?

The 11th sounds good. What's the "toi toi"?

I've only entered from the Upper Hutt side.

[kezzafish]

The 11th sounds good. What's the "toi toi"?

I've only entered from the Upper Hutt side.

toi toi is one of the roads. if you go in from hutt side cross the first river then up the hill and down the hill (pram track) then left at bottom of hill instead of going right to the orange hutt. it takes you over dopers creek and up a big hill (rimu road) which turns into toi toi road goes towards rallywoods and the MX track.

http://www.gw.govt.nz/story_images/991_AkatarawaForest20_s8715.pdf