"Customer service is priority #1 at Rocky Mountain ATV/MC. We value our customers and strive to be the best shopping experience- when you buy from us, you are buying lifetime service."
-Dan Thomas, CEO and Founder
Returns
We take pride in offering no hassle returns. In the event of a return, please call, email or chat with us to receive a solution to the problem. For apparel that doesn't fit quite right, Click here to see our Fit Guaranteed Program.
Warranties
We will stand behind all products we sell with regards to manufacturing defects in workmanship and material. Most products are limited to the manufacturer's warranty. However, we will do everything in our power to take care of the problem.
Have questions?
(Leave email if after hours) Email: sales@rockymountainatv.com Call us: 1 800 336-5437 7am-7pm Mon-Fri 8am-4pm Sat (Mountain Standard Time)
Accurate and much cheaper than OEM. What more can you ask for? They also have "half" sizes that most valve shim kits do not include; for example Pro-X makes a 2.925mm, whereas most kits you'd have to choose a 2.90mm or a 2.95mm shim.
I've had mixed experience in the past when buying after market valve shims. However, these proved to be very well made. I measured each with a micrometer and they were all spot-on! I should be good to go for another 15 K miles! I'm a very satisfied customer.
I used these on my 2006 Polaris outlaw 500. They don't specifically say they fit, but both it and a Yamaha 450 use 9.8 OD shims. After watching the RockyMountainATV video on valve shimming, and learning how to configure the math, it runs great. I have only put about an hour or 2 on them, but the $2 sale price vs 16 at Polaris make them my choice. Great Product so far!
Received in great time, each shim was sealed in individual plastic. Some appeared to have been made long ago as the oil was dry and sticky, but cleaned off easily with brake cleaner. All measured perfectly and were laser stenciled with the size on one face (I assume laser because the brake cleaner did not phase the number.
Measured everything twice and saved big time instead of buying the 80pc kit. Fits perfectly and each shim is marked with its thickness! My motor sounds and runs amazing after re-shim!
Works good. I ordered the Hot cams shim kit, and came up short on couple different sizes. RM hooked me up with these shims to fill in the missing shims. That's why I order through RM only
You can get them in smaller gradations between size which means you can adjust to the thousandth like with Honda ones, but not pay the Honda price. Available by the each from RMATV/MC, cheap, and more sizes than Hot Cams. What's not to like?
I bought a used head off ebay and it needed to be shimmed after 20 hours. I only got 12 hours worth of shims before my valves were closed. I bought every size. Defiantly worth the money
Machine this part was bought for: 2007 HONDA CRF250R
This is SO important ! When you buy these individual shims, you can get the "in between" sizes to get your clearances exactly where you want.
Shim kits only have the full sizes, and the adjustments are too big. No more kits for me. I will buy the individual shims I want rather than sit with dozens of shims I will never use......and many times still don't have the half-sizes I need.