The OG naked/ hooligan/streetfighter has received a ground up redesign for the 2021 model year. Triumph tells us it has left no stone unturned with every single component new from tip to top. From the chassis to the new 1160 cc Triple, the latest Speed Triple RS is said to be the, “Fastest accelerating, most powerful, highest torque Speed Triple ever with a hair-raising new sound.”  
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https://www.motorcycle.com/features/everything-you-want-to-know-about-the-2021-triumph-speed-triple-rs-except-what-its-like-to-ride.html