ty 250 d gearing

[Darren Robinson]

Hi guys this is my first post what i would like to know is i ride a ty 250 d and i have changed the gearing i run is 428 chain & front 12 sprocket & rear 53 getting a 10 teeth made would like to hear what others run

[David Lahey]

I use 12/53 on two of them and 13/53 on the other.

10/53 will be useless to ride with in first gear on a TY250 (as a solo) and I would like to know if the chain is clear of the sprocket retaining nut with a 10T 428 sprocket. Smallest I have seen on a Yamaha is 11T and the chain was pretty close to the points on the nut hex.

[Darren Robinson]

thanks David hoping to talk to you on the 10 t i was going to use a circlip instead of the plate have ran this before no problems i should all so say i am about 100kg and losing kgs but not quick enough will try it and post the results
Darren

[Starky]

I had 12/50 on my TY250 when I bought it and it was just a little quick in the tight stuff for me. Managed to get an 11 on the front today and I think it is perfect feels more like my 175 in tight turns. Before you could feel the surge of power stroke now everything is smooth

[Darren Robinson]

thanks starky thats one of my problems i trying to fix seems like i need to slow down in the tight stuff and clutch is to on or off to slow it down more got a trial tomorrow but the gears are not ready i am building a 10t &11t front with 53 t rear

thanks again guy you have been lots of help.

[kevste]

hi Darren,
i was having similar issues with my ty too. i run a 12/52. have learned better clutch control now. however, would like to know where you are getting a 11t made up and how it goes.

[Darren Robinson]

hi kevste sprockets australia in vic sell the blanks and i am doing the rest will try it and let you know might be able to make more if it works ok

[kevste]

thanks Darren

[Darren Robinson]

Hi Guys
tried out my new 10 t front sprocket (10 f 53 r 428 chain) fantastic slow smooth speed just right up & down hills great .
Darren