I've always wanted an 'R, so now I'm gonna bite the bullet and get one, just a bit different than most people do. First, i'm going to get a trx frame in good shape, and an 85-86 ATC250r, and go from there. I'm aware of the work this requires, but this way, I know how it was done. So, I have a few questions first;
1) I seem to remeber reading somewhere that the 85-86 ATC rear end (swingarm back, including shock) can be used in a trx frame. Is this right?
2) Will the intake/carb boot/airbox off of an ATC work in the TRX frame?
3) If I use the 85-86 motor, I have to use the 86 frame because of the rear engine mount, correct?

I know I'll think of more before I even start this, but that's all I can think of off hand....

 

well i can help you out frist off all the water cooled atc/trx engines are the same as far as how they bolt up and most other ways also as far as the carb and intake boot i also happen to know for a fact will be alright i ran my 86 atc 250r engine in my trx250r for like 8 months,the swing arm will also work my info isn't hear say or what blow joe down the road told me iv done it i have my trx all the way apart and my dad is trying to find someone to weld a few cracks right now so i to will be building a 250r soon hehe, dude if u have yahoo messger im "ohiowoodsrider250r" and im happy to help in any way i can good luck

 

I'd heard that the the whole rear end bolts up....

 

it will with the trx carrier other wise with calpier mounting you'll need one from the atc to make it work

 

I was just planning on using the caliper and master cylinder from the ATC. I'm going to buy a complete ATC.

 

ahhh i see that'll work hey do have yahoo messger?

 

No, but I have ICQ and AIM
ICQ# is 22760453
AIM is BrockZurcher

 

ok i added you on aim im insanequadpilot

 

Get the 86 ATC, it has more usable parts to swap.

If you are going to race or anything I would do it right the first time. Don't get a stock frame or anything that you will need to replace again!
ERIC

 

Is there a big difference between the 85 and 86 ATC? I always thought they were nearly identicle. I'm not planning on doing any serious racing with it , maybe go to open practice with it a few times, but my 400 is my race bike. Do you guy's think I should get an ATC for parts, or I should go and buy everything seperate. The ATC seems like the better option to me, but give me your thoughts.