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200,000+ Parts & Accessories
Our catalogue has grown extensively over the years and we now source a huge range of parts and accessories from a number of distributors from round the world.

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Price Match Promise 
We offer a price match promise on all items we sell. Use the "Seen it cheaper?" option found on the product pages to request a price match.

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ARH Custom Custom Motorcycle Parts and Accessories ARH Custom Custom Motorcycle Parts and Accessories

Progressive Suspension Standard Duty 39mm Fork Spring Kit For 2016-2020 Sportster XL1200C Custom/Limited (excluding XL1200CX), 2018-2020 XL1200NS Iron, 2016 XL1200V Seventy-Two, 2016-2020 XL883L Low, 2016-2020 XL883N Iron Models (11-1577)

  • Progressive Suspension Standard Duty 39mm Fork Spring Kit For 2016-2020 Sportster XL1200C Custom/Limited (excluding XL1200CX), 2018-2020 XL1200NS Iron, 2016 XL1200V Seventy-Two, 2016-2020 XL883L Low, 2016-2020 XL883N Iron Models (11-1577)
£121.80 inc.VAT
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Seen it cheaper elsewhere?

Our Price Promise

Seen this item cheaper on another website? Let us try and match it!

We do our upmost to keep our prices competitive but due to the number of items we sell, you may occasionally find a better price advertised elsewhere. If you have seen a cheaper price on another website let us know by filling in this form. If we’re able to match the price, we’ll look to respond via email with a unique discount code within 1 hour (during working hours) so you're not waiting too long.

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Please note:

  1. The item must be identical to the one on our website listing and must show as being available.
  2. Price match applies to items sourced from authorised UK retailers only, not private sellers.
  3. Prices will only be matched from UK based websites with prices in GBP.
  4. ARH Custom reserve the right to price match only one of each item per customer.
  5. ARH Custom reserve the right to withdraw the price match policy at any time.

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EU stock Estimated shipping date between 26 Jul and 31 Jul.

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 26 Jul and 31 Jul.

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About Shipping Costs

Shipping Cost

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Progressive rate fork springs of superior quality. Precision wound and made of high quality chrome silicon wire.

Provides a smooth ride but the progressive rate helps prevent bottoming out when taking big bumps. Each kit comes with progressive fork springs and necessary spacers.

Specifications +

Model: Standard
Color/Finish: Black
Spring Rate: 0,64 kg/mm - 1,02 kg/mm (36 lb/in - 57 lb/in)
For Fork Tube Diameter Imperial: 1.18"
Units: Pair
For Fork Tube Diameter: 30,00 mm (1,18")
For Fork Tube Diameter Metric: 30.00 mm
Product Name: Fork Springs

Part numbers +

  • 11-1577
  • 599779
  • ARM977995
  • 0416-0098
  • 04160098

Fitment +

    HARLEY DAVIDSON
  • Sportster Custom - XL 1200 C: 2014-2020
  • Roadster - XL 1200 CX: 2016-2018
  • Sportster 1200 Iron - XL 1200 NS: 2018-2021
  • Sportster Super Low - XL 1200 T: 2015-2018
  • Sportster Seventy-Two - XL 1200 V: 2015-2016
  • Sportster SuperLow - XL 883 L: 2015-2020
  • Sportster Iron - XL 883 N: 2015-2021

Delivery +

All orders are shipped with either DPD, Fedex, UPS, DHL or Royal Mail. The courier used to ship your order is determined by ourselves once your order has been placed and normally depends on the size, volume and the shipping destination. The selected courier for your order will be quoted in your order confirmation email which you will receive once we have processed your order. Once your order has been shipped, this will be confirmed via email and you will receive a tracking number so you can keep an eye on your shipments progress.

Reviews +

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Shipping Cost

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