【Get the same effect as Speed Master bearings for about 1/3 the cost!】 Recent low-priced drum pedals are simple and easy to use, without adjustment mechanisms that confuse beginners, but unfortunately, the spring roller is still the old-fashioned resin ring. In fact, the part with the greatest friction resistance in a drum pedal is this spring roller section, and replacing it with a bearing dramatically improves the pedal's movement. However, you might hesitate to spend 5,000 yen (10,000 yen for a twin pedal) on a low-priced pedal to install Canopus Speed Master bearings (formerly Speed Star bearings). So, we created these grooved bearings. They have a simple shape, with grooves cut into the outer ring of an NSK stainless steel bearing (*), and because they don't have a heavy bearing holder like Speed Master bearings, the inertia is smaller, and the movement is more agile. Compatible with the following models: TAMA Speed Cobra 310 series TAMA Iron Cobra 200 series Other models may also be compatible. Please inquire in the comments. ★Here's a comparison video using TAMA HP300, which has the same spring-related parts. https://youtu.be/ERCptkfbH7k?si=6_DiDntv70xZgAg_ ★Here's a video showing that our bearings have the same low friction as Speed Master bearings. https://youtu.be/i2p9vLpm7tg ●If you want multiple bearings for twin pedals, etc., please comment. (*) Although the outer ring of the bearing is cut, the necessary strength for the spring roller is ensured. speedstar bearing speedmastar bearing