{"id":18132,"date":"2026-06-03T11:32:10","date_gmt":"2026-06-03T09:32:10","guid":{"rendered":"https:\/\/www.lrbracing.com\/eu\/?post_type=product&p=18132"},"modified":"2026-09-17T11:19:35","modified_gmt":"2026-09-17T09:19:35","slug":"legion-ammonite-series-junior-expert-master-the-first-bmx-crankset-with-evolving-geometry","status":"publish","type":"product","link":"https:\/\/www.lrbracing.com\/eu\/en\/produits\/crankset\/legion-ammonite-series-junior-expert-master-the-first-bmx-crankset-with-evolving-geometry\/","title":{"rendered":"CRANKSET LEGION AMMONITE AL7075 FORGED | Series JUNIOR\/EXPERT\/MASTER (150mm to 170mm) | Color Black | THE FIRST BMX CRANKSET WITH EVOLVING GEOMETRY >> Available in November 2026"},"content":{"rendered":"\t\t
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<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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ONE PLATFORM. UNLIMITED EVOLUTION.<\/h2>

Every LEGION AMMONITE<\/b> crankset is manufactured from the same forged 7075-T6 aluminum, using the same production methods and the same uncompromising quality standards. To ensure maximum strength and rigidity, the entire range features an integrated hollow CrMo steel 24 mm spindle with a 40T spline interface.<\/p>

Beyond its performance, the AMMONITE stands out with a one-of-a-kind finish: a long, meticulous machining process that creates its uniquely sculpted wave design, making it truly unparalleled in the world. The difference across the range is not the level of quality or the beauty of its craftsmanship, but the perfect adaptation of geometry to the rider\u2019s needs.<\/p>

From learning the basics to elite-level competition, the LEGION AMMONITE<\/b> is the first BMX crankset designed to evolve with its rider, adapt to every track, and provide a real competitive advantage when victories are decided by hundredths of a second.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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THE FIRST BMX CRANKSET WITH EVOLVING GEOMETRY<\/h2>

The LEGION AMMONITE is far more than just a crankset. It is a complete performance platform designed to evolve with the rider and adapt to the demands of modern BMX Racing.<\/p>

Unlike traditional cranksets that impose the same dimensions on every rider, the AMMONITE combines premium forged construction, adjustable crank length, a progressive Q-Factor, and a scalable crank arm architecture to deliver the ideal balance of power, efficiency, and control at every stage of rider development.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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ADJUSTABLE CRANK LENGTH SYSTEM<\/h2>

The JUNIOR, EXPERT, and MASTER series feature an exclusive crank length adjustment system.<\/p>

Each crankset is supplied with interchangeable adjustment spacers<\/strong> that allow the effective crank length to be modified in 2.5 mm increments<\/strong>, providing up to 5 mm of total adjustment per crank arm<\/strong>.<\/p>

This system enables the crankset to naturally evolve alongside the rider’s growth and physical development without requiring a complete crankset replacement.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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FORGED TECHNOLOGY \u2013 UNCOMPROMISING POWER<\/h2>

At the heart of every LEGION AMMONITE is a forged 7075-T6 aluminum construction<\/strong>.<\/p>

The forging process reorganizes and compresses the material\u2019s grain structure in the direction of mechanical loads, creating a stronger and stiffer structure than conventional manufacturing methods while maintaining an optimized weight.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Every watt generated by the rider is efficiently transferred to the track, whether out of the gate, accelerating between obstacles, or during full-power sprint efforts.<\/span><\/h3><\/blockquote>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Benefits of Forging:<\/h3>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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  • \n\t\t\t\t\t\t\t\t\t\t\t<\/span><\/span>\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tSuperior stiffness\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t<\/span><\/span>\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tMaximum power transfer\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t<\/span><\/span>\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tExceptional fatigue resistance\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t<\/span><\/span>\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tIncreased impact resistance\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t<\/span><\/span>\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tRace-proven reliability\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t<\/ul>\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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    A PERFORMANCE TOOL FOR EVERY TRACK<\/h2>

    The AMMONITE system is not only designed to support rider progression\u2014it also becomes a genuine race-day tuning tool.<\/p>

    Some tracks feature steep starting hills that naturally help riders generate speed quickly.<\/p>

    Others feature flatter starting hills, where every watt counts and where crank length selection can make a significant difference in producing more power and optimizing acceleration from the very first pedal strokes.<\/strong><\/p>

    In less than two minutes, riders can adjust their crank length to perfectly match track conditions, riding style, and performance objectives.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    For the first time, a BMX crankset becomes a true tuning component capable of adapting not only to the rider, but also to the specific characteristics of each track.<\/span><\/h3><\/blockquote>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Shorter Setting:<\/h3>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    • \n\t\t\t\t\t\t\t\t\t\t\t<\/span><\/span>\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tFaster cadence\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t
    • \n\t\t\t\t\t\t\t\t\t\t\t<\/span><\/span>\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tQuicker acceleration\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t
    • \n\t\t\t\t\t\t\t\t\t\t\t<\/span><\/span>\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tIncreased responsiveness\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t<\/ul>\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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      Longer Setting:<\/h3>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
      \n\t\t\t\t
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      • \n\t\t\t\t\t\t\t\t\t\t\t<\/span><\/span>\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tGreater leverage\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t
      • \n\t\t\t\t\t\t\t\t\t\t\t<\/span><\/span>\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tIncreased power output\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t
      • \n\t\t\t\t\t\t\t\t\t\t\t<\/span><\/span>\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tImproved efficiency on fast and flowing tracks\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t<\/ul>\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

        ONE PLATFORM. UNLIMITED EVOLUTION. Every LEGION AMMONITE crankset is manufactured from the same forged 7075-T6 aluminum, using the same production<\/p>\n","protected":false},"featured_media":18172,"template":"","meta":[],"product_brand":[],"product_cat":[996],"product_tag":[],"class_list":["post-18132","product","type-product","status-publish","has-post-thumbnail","product_cat-crankset","first","onbackorder","taxable","shipping-taxable","purchasable","product-type-variable"],"yoast_head":"\nCRANKSET LEGION AMMONITE AL7075 FORGED | Series JUNIOR\/EXPERT\/MASTER (150mm to 170mm) | Color Black | THE FIRST BMX CRANKSET WITH EVOLVING GEOMETRY >> Available in November 2026 - MARSHAL RACING & LEGION BICYCLES<\/title>\n<meta name=\"description\" content=\"Faite le choix d\u2019un design exceptionnel gr\u00e2ce \u00e0 nos mod\u00e8les cadre & fourche MARSHAL. 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