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Description
REV #219 Sprocket - 81TMade from 7075 T6 aircraft grade aluminum, our individually CNC'ed sprockets are accurate to within 0. 01mm and have optimized tooth precision to produce minimal friction between the sprocket and chain. This equates to less drive train loss and improved performance. We are able to accomplish this due to our state of the art CNC Machines and countless hours of testing to form the perfect pitch. Under close inspection, you will notice that the chain
Made from 7075-T6 aircraft grade aluminum, our individually CNC'ed sprockets are accurate to within 0.01mm and have optimized tooth precision to produce minimal friction between the sprocket and chain. This equates to less drive train loss and improved performance. We are able to accomplish this due to our state-of-the-art CNC Machines and countless hours of testing to form the perfect pitch. Under close inspection, you will notice that the chain perfectly sits into the valley of the tooth. This reduces friction and better distributes the load of the chain when it arrives in the tooth.
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4.9 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Awesome Book for lovers of history and battles.
Format: Hardcover
This book is a great addition for a history lover or a military history lover. It would make a nice coffee table book too. Information is arranged in an easy to understand grouping throughout the book. Illustrations add to the book too. It is a heavy well made book.
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Reviewed in the United States on December 19, 2023
★★★★★ 5
Most comprehensive graphic portrayal of WW II Battlefield
Format: Hardcover
Likely the most comprehensive graphic portrayal of WW II and fairly priced. Excellent quality book.
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Reviewed in the United States on April 13, 2026
★★★★★ 5
Maps
Format: Hardcover
A must have book, I cannot wait to read it cover to cover. From what I see,(just got it), some are photos of actual maps used. Great research book.
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Great book on World War II
Format: Hardcover
A lot of information! If you are interested in World War II history this the book for you!
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Very image detailed, thorough history of WW II told through maps
Format: Hardcover
World War II Map by Map (DK History Map by Map) is a visually striking and informative guide to the pivotal events of World War II. Through detailed maps, the book offers a unique perspective on the war’s key battles, strategies, and turning points, providing a clear and accessible way to understand the conflict’s complex geography. Accompanied by concise descriptions and timelines, this book serves as both an educational resource and a compelling visual history. It is ideal for readers seeking a deeper understanding of the war’s global impact without feeling overwhelmed by text-heavy narratives. A must-have for history enthusiasts and visual learners alike.
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Reviewed in the United States on December 4, 2024