Fatbar36 Handlebars

Working alongside our factory race teams, the R-Works Fatbar36 was developed to improve performance through weight reduction without compromising existing handlebar strength. Applying 50+ years of experience in handlebar design, testing and racing, FB36 is the ultimate premium lightweight motocross handlebar.

Utilizing Renthal’s all-new 36mm clamping diameter and proprietary Zarilium® material, this innovative motocross handlebar boasts exceptional vibration reduction qualities while perserving Renthal's signature MX handlebar strength. 36% lighter than our standard 28mm diameter Fatbar®, The R-Works Fatbar36 handlebar is quickly becoming the first choice to riders serious about performance and winning races, as used by Team Honda HRC's Ken Roczen and Chase Sexton to pick up multiple wins in its first year of production.

For more info on Fatbar36 explore the Fatbar36 Explained articles

  • Lightest

    At Renthal we have always strived to produce the strongest, highest quality product we can. Our current handlebar range is at a strength level our factory level teams feels it needs to be but weight saving will always be high on their priority list. We made this our priority as well in developing Fatbar36.

  • 36Tech

    36TECH™ is a new handlebar standard developed by Renthal to push forward the boundaries of handlebar technology. The 36mm clamping diameter tapers down to a conventional 22m control section at each end, using advanced wall geometry, maximising material efficiencies in wall thickness along the entire length of the handlebar to reduce weight.

  • New Material

    Zarilium® is a new aluiminium alloy exclusive to Renthal. This new alloy has 20% greater ultimate tensile strength, while maintaining the same elongation properties. This additional strength has allowed Renthal to achieve the maximum weight reduction possible whilst matching the best in class strength of the Renthal® 28mm diameter Fatbar®.

  • Testing

    Renthal is at the forefront of handlebar testing. The only handlebar manufacturer using data acquisition and equipped with it's own in house test facility. This perfectly positions Renthal to maximise its 50+ years of handlebar design, development and championship winning race experience. The result is the best performing handlebars with unrivalled quality.

  • Manufacturing

    As the global leader in handlebar technology, we pride ourselves, not only on our engineering abilities, but also our state-of-the-art manufacturing facility. Taking raw Zarilium® tube we put it through a host of operations to turn it into Fatbar36.

  • R-Works

    The R-Works® badge represents uncompromising performance. It means we have selected the ultimate materials and manufacturing processes at our disposal to bring you the very best performance product we can. A fraction of a second. A few grams. A couple of millimetres. It all counts.

    Frequently Asked Questions

    Reviews


    Extra Info

    Packaging Recycling
    Transit Bag

    Material: 4. LDPE (Low-density polyethylene)

    Disposal: Plastic Collection - Check local guidelines


    Made from 30% recycled LDPE
    Fatbar36 Pad Wrap

    Material: 1. PET (Polyethylene terephthalate)

    Disposal: Plastic Collection - Check local guidelines


    DELETE
    Fatbar36 Card

    Material: 21. Paperboard (Non-corrugated fiberboard)

    Disposal: Paper Collection - Check local guidelines


    DELETE
    Important Product Warnings
    • This product must be fitted by a qualified mechanic
    • Do not use this product following a crash, or if the product is damaged or marked in any way
    • Do not attempt to straighten bars if they become bent
    • Only fit this product using a calibrated torque wrench
    • Do not exceed 18Nm when tightening bar mounts
    • Exceeding 18Nm will damage the handlebar, if you exceed 18Nm Renthal recommend you replace the handlebar
    • Remove any burrs from contact edge of bar mount before Installation
    • It is essential that 36mm diameter bar mounts are used
    • Do not damage the handlebar during installation
    • After installation ensure steering is not disrupted
    • Renthal recommend the maximum torque of 18Nm to an M8 fastener on a bar mount with a width of 25mm
    • Do not modify the handlebars
    • Do not mark the handlebar. Physical marking of the handlebar will lead to stress raisers which could lead to a fatigue failure
    • Do not drill into or modify bars and bar mounts
    • Do not install after-market end plugs or handguards that mount using internal expanding end plugs
    • Do not remove end plugs
    • Do not modify 7/8” or 1-1/8” diameter bar mounts to fit 36mm diameter handlebars
    • Do not use the handlebar as a mounting point when transporting the motorcycle
    • Failure to comply with the warnings and installation instructions can result in complete product failure

    Date Updated: 07 July 2026

    End of Life
    Renthal® Fatbar Handlebars are primarily made of aluminium and are easily recyclable at metal recycling centres, often found or collected at municipal waste and recycling facilities. If the handlebar becomes damaged or comes to the end of it's useful life we recommend you recycle the bar using metal recycling facilities.