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You have to call them and place the order over the phone. For some reason certain pipes aren’t listed on the website. They have some in stock 👍

Pro circuit has 95-97 works pipe in stock for the kx125

Hey Aj, what do you think about RaceTech Gold valves on the stock WP AER48. Have you tried it?

Try a 32.5 pilot.

I feel like people are overthinking stuff. I didn’t notch my slide I didn’t do anything crazy and my bike runs perfect now. It’s a 19 250sx. It’s 42-71 needle/ 440 main/32.5 pilot/450 main when it’s really cold. No bog. Don’t buy JDJETTING

So if I were to mod my 4.0 slide I read that you just cut the big arch down 1mm for 5.0? And the little tiny notch are we supposed to make that a rounded arch too? how deep and how wide?

also been thinking about switching to t4 or t2 since I currently use 91 pump mixed 50;1. if I need to get a different needle and main which needle as I've seen quite a few different ones in the thread.

so I have a 2019 KTM250sx and I bought a JD jetting kit which said to use blue needle with 430mj and 32.5pj which has made my bike run very lean.AS is at like 1.25 and even richening it more didn't help. I saw a post about my specific bike which said it ran good with 43-71 needle with 450main...

I have a Ktm 2 stroke and everywhere was sold out online. so I called/emailed BILLS PIPES in Socal and they either had it in stock or special made it for me but they shipped it to my house in 3 days. Anyways. try calling pro circuit, fmf, BILLS directly and see if they can special make it for what...