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Engine Valves and Shim KitsEngine Valves and Shim Kits

Dirt Bike Engine Intake and Exhaust Valves, Springs and Shims

When you hit the throttle of your dirt bike, there may be any number of things going through your head. If you’re racing on a motocross track, you might be anticipating the next series of whoops. If you’re on an enduro trail, you might be watching out for fallen trees. You’re probably not thinking about your engine valves, but that doesn’t reduce their importance. Your intake and exhaust valves are continually in motion, ensuring that your engine is operating at its peak performance. If they aren’t… well, fallen trees and whoops are going to be the last things on your mind.

When it’s time to replace your dirt bike valves, Rocky Mountain ATV/MC is your one-stop shop. We carry an extensive assortment of motorcycle engine valves: intake and exhaust valves, titanium and steel valves, and more. We stock leading brands like Pro X, Faction MX and Hot Cams. And with our Parts Finder, identifying the valves you need is easy. Need CRF250R valves? How about for a YZ250F? No problem! Just enter your bike’s make, model and year. We’ll do the rest to show you what fits.

Aside from valves, we also have important accessories like spring kits or shim kits. We even stock individual shims measured down to half sizes! And with the best prices, there’s nothing better than Rocky Mountain ATV/MC!

Latest Dirt Bike Engine Valves and Shim Kits Reviews – You could win up to $500 for reviewing products!

  • Hot Cams Valve Shim Kit

    Hot Cams Valve Shim Kit

    James in BC

    Perfect fit, lasting a long time, no more Revving at the stop lights lol.

    Read All Reviews
  • Pro X Steel Intake Valve/Spring Kit

    Pro X Steel Intake Valve/Spring Kit

    Bradley in OH

    Good valves at a great price

    I installed this kit in my 2008 crf450r. Install was very easy and the valves were machined to perfect specs. My own shims worked and set both valves to the required specs. I have only put a couple hours on so far but I didn't notice and power loss or problems. Can't beat this kit for the price!

    Read All Reviews
  • Pro X Steel Intake Valve

    Pro X Steel Intake Valve

    dennis in PE

    Great product for the price

    Fits perfectly and the price was great. No complaints at all. Nice product.

    Read All Reviews
  • Pro X Exhaust Valve Stem Seal

    Pro X Exhaust Valve Stem Seal

    Nickolas in CO

    new valve seals

    I purchesed these to do a complete top end on my yz450f. perfect fit and they shipped with the rest of my original order. Would recommend for leaky valves.

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  • Pro X Intake Valve Stem Seal

    Pro X Intake Valve Stem Seal

    Nickolas in CO

    Saved a ton of Cash

    I was able to purchase all the parts, tools, and chemicals to do a complete top end rebuild on my 07 yz450f from RMATVMC for less than a 3rd of the cost to have it done at a local shop. Used the RMATVMC video series too! Great product Great price, arrived on time. Would recommend.

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  • Pro X Valve Shim

    Pro X Valve Shim

    Wesley in IN

    Great replacement

    I would highly recommend these shims. Great replacements for shim kits. Just as durable as stock.

    Read All Reviews
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