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Motorcycle Brands

·November 2, 2017·1 min read

New Triumph Speed 600 – Speed Four

These are photos of the original prototype of the Speed Four

See also

<img decoding="async" width="100" height="100" src="https://www.webbikeworld.com/wp-content/uploads/2025/09/WBW-feature-90320258-100x100.jpg" class="attachment-thumbnail size-thumbnail zeen-lazy-load-base zeen-lazy-load wp-post-image" alt="Amanda Quick and a series of other writers and RE team members on the Guerilla 450. Media sourced from Royal Enfield." srcset="https://www.webbikeworld.com/wp-content/uploads/2025/09/WBW-feature-90320258-100x100.jpg 100w, https://www.webbikeworld.com/wp-content/uploads/2025/09/WBW-feature-90320258-293x293.jpg 293w, https://www.webbikeworld.com/wp-content/uploads/2025/09/WBW-feature-90320258-314x314.jpg 314w, https://www.webbikeworld.com/wp-content/uploads/2025/09/WBW-feature-90320258-411x411.jpg 411w, https://www.webbikeworld.com/wp-content/uploads/2025/09/WBW-feature-90320258-606x606.jpg 606w, https://www.webbikeworld.com/wp-content/uploads/2025/09/WBW-feature-90320258-921x921.jpg 921w" sizes="auto, (max-width: 100px) 100vw, 100px" loading="lazy" />

·September 3, 2025·12 min read

Event: Testing Out The New Guerilla 450 with Royal Enfield in Milwaukee