Hi all,

I have a pair of TY250 mono forks model 38V, but the left fork leg doesn’t have a thread cut into it for the axle bolt, the plain hole is small enough diameter to tap a thread into. I’m just wondering why it wouldn’t have had the thread in it already?.

Has anyone come across this before?

thanks

On 7/5/2025 at 12:13 AM, Neil0350 said:

Hi all,

I have a pair of TY250 mono forks model 38V, but the left fork leg doesn’t have a thread cut into it for the axle bolt, the plain hole is small enough diameter to tap a thread into. I’m just wondering why it wouldn’t have had the thread in it already?.

Has anyone come across this before?

thanks

Maybe a previous owner modified it to suit a different axle. If the hole is 12mm, the original threaded hole may have been drilled out and bushed to suit a through axle.

Edited July 9, 20251 yr by feetupfun

I just bought a 1986 yamaha ty250 and this is my first time riding a trial bike, in my experience with many 2-stroke bikes, I find them very strong at the initial throttle, easy to wheelie, but on the ty250 i just bought, in 1st 2nd 3rd gear it is not strong, it just keeps slow speed, can't even do a wheelie, is that normal or is there something wrong with my bike?