Trials Australia Forums

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

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.

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

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

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.

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.

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

thanks Darren

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