A forum for owners of Yamaha TTR250 trail and enduro bikes!

Wobbles · Member

Brand Spanker

TTRfan · Super Guru

Wow biggrin biggrin biggrin biggrin

and welcome to the forum Peter!

Brian

TT-R250M · Super Guru

Nice bike!

Welcome Peter

Enjoy the forum TOTALLY! wink

Jarrah

Lostboyscout · Veteran Member

Wow soo clean , but not for long,
That looks like the one Brian just finished ......lol

TerryK · Super Guru

Only have 400kms on mine, riding up to watch a Moto Trial tomorrow so that should add around 150kms

Good luck with the new TT-R, cheers Terry

Aussie Paul · Veteran Member

Take lots of piccys of it now before you lose the tank decals, mine only lasted a few weeks.
TTRs are a good price now. I paid $8000, 13 years ago.

Many years of reliable fun ahead of you. Good luck and welcome to the forum.

Cheers Paul.

TerryK · Super Guru

Aussie Paul wrote:
Take lots of piccys of it now before you lose the tank decals, mine only lasted a few weeks.
TTRs are a good price now. I paid $8000, 13 years ago.

Many years of reliable fun ahead of you. Good luck and welcome to the forum.

Cheers Paul.

Crazy pricing ATM, I paid $5999 on road, stamp duty, rego & delivery fee all included

LRJ · Senior Member

Congratulations. A brand new TTR! Wow!

Wobbles · Member

Thanks for the welcomes.

Looking forward to going trail riding with my son who is about to receive a bike for his birthday, all very top secret until the big day.

Have a couple of questions about the TTR250 and will post it the sprocket section.

KNjonjo · Veteran Member

Nice looking bike. My 93 is still soldiering on (albeit with some issues) so by my calculation yours should still be going strong in the year 2032!

TT-R250M · Super Guru

Wobbles wrote:
Thanks for the welcomes.
Looking forward to going trail riding with my son who is about to receive a bike for his birthday, all very top secret until the big day.
Have a couple of questions about the TTR250 and will post it the sprocket section.

Here is a suggestion for trail- either 13-49 or 14/50. This will give you more bottom end without losing too much top end.

If you don't care for bottom end and like top end speed the 13/49 or 14/49 is more the go.

If you like more bottom end and don't care about top speed, try 14/51 or 14/52.

If using the above 49T rear, you may need to elongate the chain slider bolt holes to lower your chain slider block. I used a round chainsaw file to take a bit of ''meat'' from the top of the holes.

For chain length etc.. see THIS THREAD.

Hope that answers your question, if not, don't be afraid to ask. There are plenty of helpful people on here waiting to assist so you'll be fine.

Enjoy!

Jarrah

Wobbles · Member

Thanks Jarrah good info.

Looks like I will have to buy a new chain to achieve any of the combinations I want which is pretty annoying considering the one on the bike is brand new.

TTRfan · Super Guru

Wobbles wrote:
Looks like I will have to buy a new chain to achieve any of the combinations I want which is pretty annoying considering the one on the bike is brand new.

A belated welcome from an unusually sunny and warm south-west UK!

The usual procedure is to take off any stuff that isn't needed from a new bike whilst it is still shiny and put it in a box at the back of the garage until you come to sell it wink

Brian

Mike Wright · Veteran Member

Lostboyscout wrote:
Wow soo clean , but not for long,
That looks like the one Brian just finished ......lol

I thought it was Brians one as they look very similar! .............. Lovely bike ...enjoy the new ride

-- Edited by Mike Wright on Wednesday 5th of June 2013 07:09:36 AM

Wobbles · Member

I think I have read everything on this forum regarding sprockets however I am still unsure of a couple of issues.

The gearing as it stands 14/44 is way too tall and I was going to change it to 13/49 however the motorbike shop told me this would reduce top speed to about 70km/hr which is a bit slow in my mind even though I am only using the bike on trails.

Other options could be 13/48 or 14/51 or 14/52 all of which are taller than 13/49.

My main concern is having to modify the rear chain guide carrier to allow the bigger sprocket as it appears there is not alot of spare meat on it especially given my chain block has only done 200km so it is hardly worn and may require a fair bit of hole elongation.

Would I be better off using a 13t front sprocket for this reason alone? (I have read of hooking and premature chain wearing issues using 13t) will I still get two front sprockets out of a quality chain with 13t?

Thanks

Peter

TT-R250M · Super Guru

Wobbles wrote:
I think I have read everything on this forum regarding sprockets however I am still unsure of a couple of issues.
The gearing as it stands 14/44 is way too tall and I was going to change it to 13/49 however the motorbike shop told me this would reduce top speed to about 70km/hr which is a bit slow in my mind even though I am only using the bike on trails.
Other options could be 13/48 or 14/51 or 14/52 all of which are taller than 13/49.
My main concern is having to modify the rear chain guide carrier to allow the bigger sprocket as it appears there is not alot of spare meat on it especially given my chain block has only done 200km so it is hardly worn and may require a fair bit of hole elongation.
Would I be better off using a 13t front sprocket for this reason alone? (I have read of hooking and premature chain wearing issues using 13t) will I still get two front sprockets out of a quality chain with 13t?
Thanks
Peter

Hey Peter,

I run 14/51 sprockets and have a top speed of 130 KMH, with NOS it can get as high as 140 KMH! My bike has had every mod possible (that helps). If the bike shop told you that, tell them they need to RIDE HARDER! wink I should think that you should at least reach 100 KMH easily, standard.

I found that 14/49 was the best on/offroad combo for gaining more bottom end without losing too much top end. Another good one for this was 13/49 but you do loose a fair bit of top speed doing using a 13T. The 13T is not needed though and only helps for bottom end speed.

My personal favourite for offroad is 14/51 or 14/50. This gives plenty of bottom end while retaining a good top speed. At 100KMh I would say I am at 3000rpm roughly.

Elongating your chain slider is something that you will just have to do if using higher than 49T rear. It would help using a 13T but it is no solution for elongating the slider.

A 13T front sprocket should last 2 chains but is a little prone to ''hooktitis''. smile

See HERE for chain lengths.

Also see HERE for sprockets that interchange.

Keep in mind that I have modified my bike and your results will vary a little.

Enjoy!

Jarrah

Wobbles · Member

Thanks Jarrah

I have decided to go with 13/48 for now and have just ordered a sprocket and chain set.

Peter

TerryK · Super Guru

end of a era