{"product_id":"hill-climb-racing-gear-kit-with-close-ratio-transmission-final-drive","title":"C1 Hill Climb Racing Gear Kit with Close-Ratio Transmission \u0026 Final Drive (Motorsport Use)","description":"\u003cdiv class=\"aos-product-description\"\u003e\n\n  \u003cp\u003e\n    Upgrade the transmission performance of your\n    \u003cstrong\u003eCitroën C1 1.0 1KR-FE\u003c\/strong\u003e with this\n    \u003cstrong\u003eHill Climb Performance Gear Kit with Final Drive\u003c\/strong\u003e,\n    developed specifically for compatible vehicles equipped with the\n    \u003cstrong\u003e20TT manual gearbox\u003c\/strong\u003e.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Designed for hill climb, sprint and time attack competition,\n    this motorsport gear set combines\n    \u003cstrong\u003eclose-ratio gearing with a 4.417 final drive\u003c\/strong\u003e\n    to help improve acceleration, reduce RPM drop between gear changes\n    and keep the engine closer to its effective power range.\n  \u003c\/p\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Product Overview\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        This \u003cstrong\u003eCitroën C1 Hill Climb Gear Kit\u003c\/strong\u003e is designed\n        for motorsport applications using the compatible\n        \u003cstrong\u003e20TT manual gearbox\u003c\/strong\u003e and\n        \u003cstrong\u003e1KR-FE 1.0 engine\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        The kit includes a complete set of close-ratio gears together\n        with a dedicated \u003cstrong\u003e4.417 final drive\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Compared with wider standard road-oriented gear ratios,\n        closer gear spacing helps reduce the drop in engine speed\n        after each shift, improving acceleration and allowing the\n        engine to remain closer to its useful power range.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        This transmission setup is particularly suitable for technical\n        competition environments with repeated acceleration, tight\n        corners and steep gradients.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Citroën C1 Compatibility\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Citroën\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e C1\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 1.0 1KR-FE\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGearbox:\u003c\/strong\u003e 20TT manual gearbox\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Close-ratio gear kit with final drive\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Motorsport competition\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\n        \u003cstrong\u003eCompatibility must be confirmed before ordering.\u003c\/strong\u003e\n        Verify that your Citroën C1 is equipped with the correct\n        \u003cstrong\u003e20TT manual gearbox\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        If you are unsure about fitment, contact Art of Speed with\n        your vehicle and gearbox details before placing your order.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Optimized Gear Ratios\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1st Gear:\u003c\/strong\u003e 2.790\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e2nd Gear:\u003c\/strong\u003e 1.940\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e3rd Gear:\u003c\/strong\u003e 1.470\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e4th Gear:\u003c\/strong\u003e 1.210\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e5th Gear:\u003c\/strong\u003e 1.070\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFinal Drive Ratio:\u003c\/strong\u003e 4.417\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\n        These ratios are designed to provide closer spacing between gears,\n        helping the engine remain within a more effective operating range\n        during hard acceleration.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        The \u003cstrong\u003e4.417 final drive\u003c\/strong\u003e further shortens the overall\n        gearing, supporting stronger acceleration on steep gradients\n        and out of slower corners.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Key Features\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003eDeveloped for compatible Citroën C1 20TT gearboxes\u003c\/li\u003e\n        \u003cli\u003eCompatible with 1.0 1KR-FE applications\u003c\/li\u003e\n        \u003cli\u003eComplete close-ratio gear set\u003c\/li\u003e\n        \u003cli\u003eIncludes 4.417 final drive\u003c\/li\u003e\n        \u003cli\u003eDesigned for stronger acceleration\u003c\/li\u003e\n        \u003cli\u003eReduced RPM drop between gear changes\u003c\/li\u003e\n        \u003cli\u003ePrecision-machined motorsport components\u003c\/li\u003e\n        \u003cli\u003eDesigned for high-RPM competition use\u003c\/li\u003e\n        \u003cli\u003eSuitable for hill climb, sprint and time attack racing\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Hill Climb Performance\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        Hill climb competition places particular demands on a transmission,\n        with steep gradients, frequent gear changes and repeated acceleration\n        from relatively low speeds.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Close-ratio gearing reduces the difference between consecutive\n        gear ratios, helping to minimise RPM loss when changing gear.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Combined with the shorter 4.417 final drive, this setup is designed\n        to favour acceleration and responsiveness over maximum theoretical\n        top speed.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        The result is a transmission configuration particularly suited\n        to technical hill climb, sprint and time attack applications.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Installation \u0026amp; Professional Fitment\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        \u003cstrong\u003eProfessional installation is required.\u003c\/strong\u003e\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        This gear kit must be installed by an experienced motorsport\n        gearbox or transmission specialist.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Correct assembly, bearing setup, preload, clearances and gearbox\n        inspection are essential for reliable operation.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        The condition of bearings, synchronisers and other gearbox\n        components should be inspected during installation and replaced\n        where necessary.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Production \u0026amp; Delivery Time\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        This gear kit is \u003cstrong\u003emade to order\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        \u003cstrong\u003e\n          Estimated production and delivery time:\n          approximately 7 to 8 weeks after purchase.\n        \u003c\/strong\u003e\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Production times may vary depending on manufacturing schedules\n        and component availability.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Frequently Asked Questions\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Is this gear kit designed for the Citroën C1?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Yes. It is intended for compatible\n        \u003cstrong\u003eCitroën C1 1.0 1KR-FE applications\u003c\/strong\u003e\n        equipped with the \u003cstrong\u003e20TT manual gearbox\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Does the kit include the final drive?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Yes. The kit includes the complete close-ratio gear set\n        together with a \u003cstrong\u003e4.417 final drive\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        What is the advantage of close-ratio gearing?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Close-ratio gearing reduces the RPM drop between consecutive\n        gears, helping the engine stay closer to its effective power\n        range during acceleration.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Is this kit suitable for hill climb racing?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Yes. The gear ratios and final drive are specifically focused\n        on acceleration-oriented motorsport applications such as\n        hill climb, sprint and time attack.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Does the shorter gearing affect top speed?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Yes. Shorter gearing generally improves acceleration but can\n        increase engine RPM at a given road speed and reduce theoretical\n        maximum speed.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Does professional installation matter?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Yes. Correct gearbox assembly and setup are essential.\n        Installation should be carried out by an experienced motorsport\n        transmission specialist.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        How long does production take?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        This product is made to order, with an estimated production\n        and delivery time of approximately\n        \u003cstrong\u003e7 to 8 weeks\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n  \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n    Motorsport Use — Returns \u0026amp; Warranty\n  \u003c\/summary\u003e\n\n  \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n    \u003cp\u003e\n      This product is intended exclusively for \u003cstrong\u003emotorsport use\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      All sales are final: \u003cstrong\u003eno returns are accepted and no commercial warranty is provided\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      This does not affect any statutory rights that cannot legally be excluded.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n  \u003cdiv style=\"margin-top: 20px; padding: 15px; border: 1px solid #dddddd;\"\u003e\n    \u003cp style=\"margin: 0;\"\u003e\n      \u003cstrong\u003eFor Motorsport Use Only:\u003c\/strong\u003e\n      This product is intended for off-highway competition use and\n      is not approved for use on public roads. The user is responsible\n      for compliance with applicable local laws, technical regulations\n      and competition requirements.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cp style=\"font-size: 12px; color: #777777; margin-top: 16px;\"\u003e\n    \u003cem\u003e\n      Images are for illustrative purposes only and may not accurately\n      represent the final product supplied. Actual appearance, finish,\n      dimensions and specific details may vary.\n    \u003c\/em\u003e\n  \u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"CityBug - C1, 107, Aygo","offers":[{"title":"Default Title","offer_id":55090460754258,"sku":null,"price":4500.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/5637\/8962\/files\/Hill_Climb_20TT_Gearbox.jpg?v=1792575246","url":"https:\/\/shop.artofspeed.pt\/products\/hill-climb-racing-gear-kit-with-close-ratio-transmission-final-drive","provider":"Art of Speed","version":"1.0","type":"link"}