Yamaha deltabox 2. ” Apr 9, 2023 · Are there different «classes» in yzf R6? I was looking at 03 R6 and 03 R6 (deltabox 3) and both looked different. The frame achieves excellent torsional rigidity by making the lines connecting the top and bottom of the head pipe*1 to the rear swingarm pivot*2 as straight as possible. Could this be the case, or deltabox is just the frame design? Yamaha’s Deltabox frame design can be classified as a diamond frame, but we call it Deltabox because it embodies a unique Yamaha design philosophy. Yamaha’s Deltabox frame design can be classified as a diamond frame, but we call it Deltabox because it embodies a unique Yamaha design philosophy. A variant of the Yamaha Deltabox aluminium frame, called Deltabox II, is extremely short and stiff, and uses the engine as a stressed component to add strength without weight. Yamaha Technology 1985: Aluminum Deltabox Frame A high-rigidity aluminum frame construction that helps achieve outstanding handling stability. EXUP is an acronym for Yamaha's EXhaust Ultimate Power valve. Aug 11, 2004 · As mentioned, the II, III, and V designations connotate different iterations of the deltabox frame. The valve is a butterfly type valve that opens at higher RPM and closes at ower RPM. Could this be the case, or deltabox is just the frame design?. Adopted first on the ’85 model “ TZR250 ”. The first road version of the Deltabox Frame, for general public appeared in 1987 on the Yamaha FZR1000. The engine was mounted in a frame with a new kind of structural design that would later be dubbed a “Deltabox frame. May 28, 2019 · The Yamaha Deltabox frame is a patented motorcycle chassis produced by Yamaha Motor Company of Iwata, Shizuoka, Japan. This valve is not a sevomotor, and does reside in the exhaust collector. This groundbreaking motorcycle was the first GP machine to feature a compact V4 engine with a Yamaha-exclusive rotary disc valve layout.