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The TTR250 FAQ web pages -> TTR250 -> Sprockets, chains and gearing -> Chain life and chain adjustment
Post Info TOPIC: Chain life and chain adjustment
TTRfan


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Chain life and chain adjustment
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Just had a mate, Bob, pop around for a new chain and sprocket set.

He keeps a careful record of all that he does to is white OE and the mileages when he replaces parts, services the TTR, etc.

I was very surprised to learn that he got 6,039 miles or 9,720km (and we double checked it!) out of his last Renthal R3 chain and steel rear sprocket biggrin

He used two front sprockets and split links as to be expected.

Bob runs a full chain guard and a home made chain oiler but I still think this is remarkable chain life as he only uses the TTR for green laning.

Interestingly he runs 13-48 sprockets so maybe the 13 tooth front doesn't wear the chain as much as we think?

Has anyone got more life out of their TTR chain than that?

Brian



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Cubber


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RE: Chain life
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When I bought my TTR I adjusted the chain (in ignorance) to the same tension that my road bikes were set, plus a bit. smile

Needless to say it didn't last long before rollers started dropping off and I was obliged to renew it. crydisbelief

I have just recently replaced gearbox sprocket, rear wheel sprocket and chain - this is after doing 2,757 miles.

I must say, however, that I renewed the lot simply because the gearbox sprocket was showing signs of hooking. The chain and rear sprocket were good for a few more miles and have been shelved for future use. wink

Perhaps, using Bob's basis, I should expext another 2,700 miles from the chain which would project to 5,500 miles - and all with no oiler. thumbsup.gif

Martyn



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pedrosan


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I'm waiting for a new chain and sprocket set as we speak, please could you let me know the ideal tension for it? I will do a mix of road and off road miles, and its a 94 raid. Cheers chaps, your help is as ever much appreciated :)

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Pete Brown

Keighley, West Yorkshire

'94 Yamaha TTR 250 Raid (with Open Enduro headlight, grrr...)

'54 plate Suzuki GSF 650S (Bandit)

Previously Yamaha YBR125, Yamaha TY125, Yamaha TY250
Cubber


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Here you are Mr San:-

Image2.jpg

Martyn



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pedrosan


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THANKS Martyn,

That's slacker than I would have thought, I'll make sure I follow the guide. I take it that's in the manual, I think there's a link on ttr250.com for it. Must get organised and get in downloaded.

Cheers again

Pete

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Pete Brown

Keighley, West Yorkshire

'94 Yamaha TTR 250 Raid (with Open Enduro headlight, grrr...)

'54 plate Suzuki GSF 650S (Bandit)

Previously Yamaha YBR125, Yamaha TY125, Yamaha TY250
dfaz


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I have just removed the small sprocket ready for the new one (hopefully tomorrow) I was amazed at how much dirt was held behind and around the chain area especially as I powerwashed it around there when I was out last.I can imagine this could have a bearing on chain life also.



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davecambo


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those rubber things look terrible on the pegs

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leigh


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Chain life and chain adjustment
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Reviving an old thread here.

Just replaced my chain its done almost exactly 8000klm (about 5-6k offroad) RK X-ring and replaced the front sprocket twice in that time. Noticed the second front sprocket has worn quicker than the first - probably due to the chain wearing out I'm guessing.

New front sprocket and chain and near new rear sprocket, swapped the one off my spare wheel so the newest one is matched to this new gear. First chain I've worn out I wasn't sure how long they last been wondering for a while if I should change it. Did the pull test at the back of the sprocket and the quicker wear on the front convinced me. I think I let the first front sprocket go too long, prob about 4-5k offroad klms.

Nice and new now, adjuster sitting on 7.1 with 108 links and a different brand chain this time DID VX2 xring 40% cheaper (on special) than the RK. Which sat on adjuster 8 when all new. Wheel is a bit closer to the shock cover now, not too bad but wouldn't mind it sitting back a bit further.  

Also does anyone know how much each click on the snail cam takes the wheel back? is it 1mm. Also how many clicks roughly does an extra link added to a chain amount to?


Leigh



-- Edited by leigh on Tuesday 16th of August 2016 02:47:58 AM

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ttboof


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Im running an rk520  oring with 13/48 sprockets. 

No lube other than wd40 after a ride 95% off road currently have 8000ks on the second front and second joiner clip 

stil going strong 



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leigh


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Same sprocket sizes here. Wasn't sure what to expect for chain life etc, replaced it partly as I wasn't sure but suspected it might need replacing. Only been biking for 4-5 years and don't have a lot of "chain" experience. Seen a lot of mud and well I'm surprised how well they work when you see the stuff caked on them sometimes. Ritual after a wash is to WD40 and run through a rag a few times then a small amount of chain lube and run through a rag again.

$85 for a DID VX2 delivered made it easy to decide. Still on ebay for that price I think.

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KMAN


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With the 13 48 combo.
How many links in the chain

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krum downunder


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KMAN, i used this info for when i changed my chain ttr250.activeboard.com/t52493951/gearing-final-drive-reference-chart/


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leigh


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108 kman. Cut it same length as my last chain then with the tyre sitting a bit closer to the swingarm I thought hmmm maybe should have gone 110 - but then I wonder if that would leave enough adjustment on the chain? 



-- Edited by leigh on Wednesday 17th of August 2016 01:11:12 AM

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KMAN


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Hey Leigh.

What ratios's and what size rear tyre are u running.

Cheers Kris


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leigh


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its 13/48, running a Pirelli XCMH 110/100 - about 15mm clearance between tyre and swingarm, I'd say about 10-12mm clearance when the tyre is new. Measurements with the new chain.

Krum - thanks for the link that is a handy post, I couldn't find that before for some reason.

Edit: looking at that other post and making a quick calc, 110 links will be too long with 13/48, wouldn't work. 



-- Edited by leigh on Wednesday 17th of August 2016 02:35:37 AM

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KMAN


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thanks leigh.
im planning on running 13 48 with a michy ac10.

Thanks for the confirmation

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leigh


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Hey no problem. Have run the 110/100 AC10 and I'd say its a little smaller than the XCMH, not by much though.

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martin555


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Help please. I purchased 2004. Ttr 250 7.000km. I put some more km in its 8500 now. Previous owner used it rarely.. Chain was unlubricated shiny like mirror. How can i find out chain is worn? I used some offroad motul lube, grease and dirt stuck now like glue. How can i wash, remove chain and put in petrol or it damages rubber o rings? After wash, check with hand if each chain particle is not too wobbly? Or replace is a must? 8000km, but 7000km seemingly badly treated. Thx. Dont want accident because worn chain. Previous owner did NOT rough offroad, not any wear on the bike.

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ttr steve


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I know when my chain needs doing, as I can't tighten it any more with the rear adjuster and it feels all loose and very noisy. If in any doubt change it.

As for cleaning, I jet wash mine and the spray with WD40 immediately, then with chain lube after that and every time I change the rear tyre or sprocket I take the chain off and soak it in old engine oil.

Hope that helps

Steve



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TTRfan


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http://www.reginachain.it/eng/use_and_maintenance/how_to04.shtml



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JOHNYBOY


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i use 80 gear oil on my chain paint it on with a 1/2" paint brush it gets into all the pins & rollers

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Moo


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Chainsaw oil on mine, cheap, cheerful and is made to be anti fling

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comeragh


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I must say i am very impressed with the Renthal R3 chain supplied by totally ttrs .
It was fitted at the same time as i fitted a Tsubaki on another bike which looks old and has a bit of play in links however the R3 still looks new .
The gold plating still looks great and the links have zero play .


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elvis


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I'm coming on 10,000km on my chain. I bought my (in new condition) ttr2011 with 700km on it about 2 years ago.
I put a 13 tooth front sprocket on when i got the bike. i run two sets of wheels for either road or dirt. the rear sprockets still look okay. the front sprocket needs replacing again, probably a bit over due.

I ride to work every day and get out on the dirt 4 to 6 times a year, so the mix would be about 75% road 25% dirt

The chain is stretched - just tighten from 9.1 to 10.1

Will do the test in the video too see how much chain contact there is on the rear sprocket. to see if i need a new chain

Cheers



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