![]() DR Tested: 9.5Thumper Racing: 800/259-5186 www.thumperracingusa. Heavy Duty Construction - 50 Thicker than stock tensioners. ![]() Test your car for high performance with peace of mind. It's also recommended with the Ford Racing kit 5.0L 4V 10-RIB SUPERCHARGER ACCESSORY DRIVE. We wouldn't blame any horsepower junkie for going big. This product is used by the Ford Racing Team. ![]() He actually checked into buying our test bike. A 6-foot 5-inch, 240-pound test rider who tried the 570 loved the Thumper because it mimicked his XR650R's grunt but with a lighter overall package. Of course, there are folks who still believe in the "too much is just enough" theory. Does that mean we think you need it? This kit should be under, "You've got to be kidding!" in the Thumper catalog, too, but if we had our 525 apart, we'd have trouble thinking of reasons not to put in the bigger piston. Note that we say wheelie rather than wheelspin this kit does boost grunt and make you grin like a loon when you twist the handle, but it is even more civil than a stocker. Total dial-a-wheelie thrust is available at any rpm. The result is an engine even smoother and more docile than a stock 525 but with more meat to the power. ![]() The 570 kit probably doesn't boost overall power much, but it does add a bunch of torque to the lower rpm ranges. So I have a crf250x with a thumper racing 270 kit and the piston has wore out and I need a replacement piston and rings would a cylinder works 270 piston work And I contacted thumper racing (built engines now) about a week ago and havent gotten a response and I have a race coming up soon that I need to be in. The 525 engine seems smooth-until you ride it back-to-back with the Thumper 570. Both kits are said to really improve the low and mid range. The Athena kit is 290cc but uses a heavier piston and does increase vibration. Reliability is possibly better due to its extra piston ring compared to the Athena kit. Our 540 experience had us convinced the bike would accelerate so hard that suspension action would be negatively impacted. The 280cc Thumper Racing kit is said to have the same vibration as stock as piston weights are very close. Thumper Racing offers the same-size displacement increase with the bore alone, and it costs $690 if you send in your cylinder to be sleeved.Frankly, we expected the Thumper 570 to be fast but less fun and ridable than the stocker. Thumper Racing Local business Send message Hi Please let us know how we can help. Yet KTM has a 570 kit in its Hard Parts catalog (probably under the subhead, "You've got to be kidding!") that consists of a 540 big-bore kit and a stroker crank. not! We couldn't imagine why we would want a faster KTM 525 the machines are rockets when stock, and quiet. Thumper Racing Works Synthetic Ester 4T Engine Oil is a 4-stroke synthetic motorcycle racing oil that has been developed for full works competition use and. All those KTM 525 pilots whining about how underpowered and slow their bikes are. But, if our FAST for FREE Shipping isn't quick enough, you'll almost always have 2 FASTER options to choose from at Checkout.It can be a headache riding with a group of KTM riders. Sometimes faster, depending if we have a warehouse close to you with the products you need. And how FAST is our Free Shipping? Most of the time, you'll get your items in 3-7 days. BEL-RAY THUMPER RACING WORKS SYNTHETIC ESTER 4T ENGINE OIL Developed for full works competition use and to withstand extreme racing conditions Withstands. Most places in the continental United States are eligible for free shipping, but your location may require some shipping fees to be applied. Maximum horsepower and consistent clutch. All items that are Eligible for Free Shipping will be clearly marked before you put them in your cart. Thumper Racing Synthetic Ester 4T Engine Oil Synthetic Ester formula for the ultimate Thumper experience. But I guess that depends on the size of your trunk. We offer Free Shipping on pretty much everything, except for the big stuff you can't fit in the trunk of your car. License Plate Kits / Lights / AccessoriesÄid I hear that right? Free Shipping on Everything? Well, almost.
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