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

Members Login
Post Info TOPIC: 13/52 gearing


Guru

Status: Offline
Posts: 688
Date:
13/52 gearing
Permalink  
 


Greeting All

So I fitted my 13/52 gearing today and had a bit of a ride down the back firetrail

this combo seems to work really well, I can go down to almost stopped, and move so slowly in first gear that it doesn't even register on the speedo

I normally have my Idle set so the motor is just above stopping so you get a really good slow engine brake down hills but have now turned it up a bit
this gives me a better response right off idle when I crack the throttle

It will also lift the front wheel quite easily without having to pull on the bars to get the wheel up

I'll give an update soon to give the maximum speeds I can get in each gear, I don't really care much though as I spend most of the time off road anyway
As long as I can cruise at 100kph that's as fast as I want to go on the road.

Also 2nd gear take off's are going to be the norm now with 1st gear for really tricky terrain and tricky up-hills etc....




I got my new sprocket from "The Chain Gang"  There in Brisbane I think
It was expensive but is suppose to last 3 times longer than normal sprockets

Image00002.jpg




Here's an overall shot, I need a new tab washer, I hate those thing, 2 uses and there buggered, Oh well I guess I won't be changing the sprocket any time soon though

00006243_2.jpg




I removed the chain guide and replaced it with this 3mm aluminium shape to protect the chain and sprocket from rocks

00006244_2.jpg

 

Anyone else got 13/52 out there ?

 

 



Attachments
__________________

2004 TTR250 - Highway Dirtbike Hand Guards, 38mm Bar Risers, D606 Front & Rear, Opened up Airbox with Twin Air Filter, Re-jetted Carby, B+B Bash Plate & Frame Guards, DIY 3mm Alloy Tail Tidy, 14/47 Gearing.

 



Senior Member

Status: Offline
Posts: 170
Date:
Permalink  
 

what a pity yamaha don't make an alternative nylon rear chain guide for the 52T.
the US model has 52T I believe, but unfortunately a different attachment point for the guide.

__________________


Senior Member

Status: Offline
Posts: 117
Date:
Permalink  
 

Yes, anyone that owns a ttr250 here in Canada would have recieved the stock US 13/52 gearing. Personally, I switched to 13/46 for the best of both worlds. But that 13/52 is some appealing for the very tightest of woods.

__________________


Guru

Status: Offline
Posts: 653
Date:
Permalink  
 

I've heard great things about the chain gang gear wears really well .and well worth the money

  they claim its due the  use good materials and the sprockets are machined to much higher tolerances than the usual run of the mill ones ensuring the best possible chain and sprocket match maximising contact area and longer wear is the result

 

only problem I have a case of short arms and deep pockets and don't spent the extra to get the benefit

 

and I run 13/48 find it  good all round



-- Edited by ttboof on Friday 30th of January 2015 07:01:39 AM



-- Edited by ttboof on Friday 30th of January 2015 07:07:07 AM

__________________


Veteran Member

Status: Offline
Posts: 71
Date:
Permalink  
 

My USA bike came stock 13/52 and I love it. Im a big fat American (260lbs) so its perfect for me. Its not street legal so I dont need it to go fast. Im perfectly happy with its top speed. I wouldnt want to go any faster.

 

IMG_20140918_091628_hdr_1.jpg



-- Edited by mypobox on Friday 30th of January 2015 12:22:56 PM

Attachments
__________________


Guru

Status: Offline
Posts: 688
Date:
Permalink  
 

mypobox wrote:

Im a big fat American (260lbs) so its perfect for me. Its not street legal so I dont need it to go fast. Im perfectly happy with its top speed. I wouldnt want to go any faster.



LOL, at least your honest !

Hey I like the B&W TTR, maybe I'll recolour mine in a grey scale look

where I live I have my local loop, it's about 15klm long and it goes from:

fast open fire trail
twisty fire trails
really steep uphills an downhills
really steep uphills an downhills with rocks and ledges thrown in
shallow rocky creeks
tight twisty single tracks just wide enough for the bars

In short everything I like in a ride and the TTR takes it all in it's stride, easy

At last it's the Weekend, here anyway, can't wait to give it a good test tomorrow.
Oh ****, it's already tomorrow, 12:15, off to bed now

 

 

 



__________________

2004 TTR250 - Highway Dirtbike Hand Guards, 38mm Bar Risers, D606 Front & Rear, Opened up Airbox with Twin Air Filter, Re-jetted Carby, B+B Bash Plate & Frame Guards, DIY 3mm Alloy Tail Tidy, 14/47 Gearing.

 



Veteran Member

Status: Offline
Posts: 55
Date:
Permalink  
 

i recently fitted 14/51 gearing (couldn't find the 52 rear sprocket)...plus a new (cheap) chain..

compared with previous 14/48 gearing im happier now...bike moves as i like at low speeds on tricky dirt passes..
also top speed on highways back to home, not changed dramatically...so its ok for me...



__________________
66T


Veteran Member

Status: Offline
Posts: 52
Date:
Permalink  
 

Fwiw, I've used 13/50 gearing on my TTR for 70,000 km, and still use the stock chain guide. OK, the chain has to run up and over the bottom slipper, but I've had no problems with this setup at all. I've had a Chain Gang rear sprocket on my bike for so long that I can't remember when it was fitted (geriatric comments can be left at the door, thanks peoplebiggrin). I have had a front Gang (13T), but found it didn't last any longer than anything else. Things may have changed since then, of course.






-- Edited by 66T on Wednesday 8th of April 2015 06:53:42 AM

__________________


Newbie

Status: Offline
Posts: 4
Date:
Permalink  
 

Today I have tried to fit a (new) rear JT 52 rear sprocket with front (old) jt 13 and 110 links chain (old) just to try the bike..... and....failno.

In my ttr it is not possible to fit the rear wheel axis.

Tomorrow I will try to fit a new set 13/52 112 (new sprockets and chain). Hope I can take out the old front sprocket because today it has not been possible cry.

 

[offtopic] I lowered my ttr 4cm with totally ttrs lowering link, feels great biggrin.[/offtopic]

 



__________________


Super Guru

Status: Offline
Posts: 1723
Date:
Permalink  
 

Will +2 links be enough then you think?..

__________________

Pete. South Somerset, England.

03 Blue model. Renthal bars, (13/48), CRD AP2 zaust, Totally ttr's bash plate

https://m.youtube.com/channel/UCH8z1hQp6k1gM2kB5POhNfA



Guru

Status: Online
Posts: 874
Date:
Permalink  
 

As far as chain length goes..
I have found easyest way is to buy
120 link chains then cut them to fit...

13/52 ... 4.0:1
I'm on 12/47.. 3.91:1 with a Rekluse clutch..


__________________

 

.....................................................................................................

 http://www.kiwibiker.co.nz

Bikes... 06 TTR250 / 09 XT660R / 1977 Montesa Cota 348 MRR / 1979 Montesa H6 125 Enduro...

O yer and a Quad...



Newbie

Status: Offline
Posts: 4
Date:
Permalink  
 

peteBLUEttr wrote:

Will +2 links be enough then you think?..


That is the one I've got... but perhaps it will be a better choice go to the shop and change the chain for a 114-116 links one, since my 112 links chain is sealed in it's box and has not been opened.

Or as you say, petenz, buy a 120 links chain and cut it



__________________


Newbie

Status: Offline
Posts: 4
Date:
Permalink  
 

-=Lemmy=- wrote:

Today I have tried to fit a (new) rear JT 52 rear sprocket with front (old) jt 13 and 110 links chain (old) just to try the bike..... and....failno.

In my ttr it is not possible to fit the rear wheel axis.

Tomorrow I will try to fit a new set 13/52 112 (new sprockets and chain). Hope I can take out the old front sprocket because today it has not been possible cry.

 

[offtopic] I lowered my ttr 4cm with totally ttrs lowering link, feels great biggrin.[/offtopic]

 


Sorry, sorry sorry... it was a 108 links chain not 110, I think 110 will fit ok, because 112 links chain looks quite loose even with the chain puller in the last position (13).



__________________


Newbie

Status: Offline
Posts: 2
Date:
Permalink  
 

Will be fitting 13/52 this weekend - that rear sprocket looks big! I'm hoping I still have 100kph capability for the roads but with the original 14/44 it always struggled to stay at 100kph in 6th so this migh give it the extra revs to stay there! Will post a pick when its up and running. 



__________________
Page 1 of 1  sorted by
Quick Reply

Please log in to post quick replies.



Create your own FREE Forum
Report Abuse
Powered by ActiveBoard