SKU: 30387436112

E RIDE PRO DirtyBike RK 420 Primary Belt to Chain Conversion

Sale price$75.60 Regular price$84.00
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

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For Your Every Summer RSVP, with Code: SUMMER15

Description

E RIDE PRO DirtyBike RK 420 Primary Belt to Chain ConversionDirtyBike Industries primary drive system now available with the best sealed 420 chain available. RK 420 GB MXU! If you ride in dusty, sandy or muddy conditions you may have primary belt slippage which will eventually fail the stock primary belt, possibly leaving you stranded in the middle of nowhere. Dont let this happen! Install a DirtyBike Industries primary chain drive system. With the world famous RK GB4MXU chain, this is a necessary upgrade for

DirtyBike Industries primary drive system now available with the best sealed 420 chain available. RK 420 GB MXU!

If you ride in dusty, sandy or muddy conditions you may have primary belt slippage which will eventually fail the stock primary belt, possibly leaving you stranded in the middle of nowhere. Don’t let this happen! Install a DirtyBike Industries primary chain drive system. With the world famous RK GB4MXU chain, this is a necessary upgrade for the serious off-road rider and maintains stock gear ratio.

RK GB420MXU Sealed chain is one of the strongest and quietest 420 chains available.

Master link makes for easier installation and the chain can be replaced easily without removing the swing arm.

This kit comes with db DirtyBike Industries exclusive 1mm aluminum alignment shim allowing you to adjust the sprocket alignment for a quieter, longer lasting drive system.

Installation Video

Buyers and Maintenance Guide

Installation Tool

Recommendations

Recommend

Use

219H standard chain

On road and light off road with stock power

219H RK O-ring and non-O-ring kits

On road and off road up to 16Kw

420 with sealed x-ring

Off road over 16Kw

420 with non-O-ring chain

Racing only. Very Loud!

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 30387436112

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Patrick Wihler
Lexington, US
★★★★★ 5
MegaRed Omega Fish Oil
Size: 80 Count (Pack of 1)
Great Fish Oil
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Reviewed in the United States on May 28, 2026
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Michael martinez
Boise, US
★★★★★ 5
Stay healthy
Good pill size, and new lemon flavor. Has all the great omega Three, and fish oil for brain, heart and joints. Good price and quality. Easy to swallow with no bad burping as long as you keep it refrigerated. Works fast and is a great choice.
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Adrymarketing
Omaha, US
★★★★★ 5
High Potency Omega-3 and Easy to Take
I’ve been taking this omega-3 supplement and so far I’m very happy with it. The capsules are easy to swallow and I appreciate the high potency of 3600 mg per serving. It feels like a good quality supplement and I like that it helps support overall wellness. The bottle also lasts a long time, which makes it a good value. Overall, it’s a great option if you’re looking for a reliable omega-3 supplement.
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Kristen
New York, US
★★★★★ 5
Excellent product
Great. No lingering flavor.
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Robert
Alexandria, US
★★★★★ 5
Great quality 👌 👏
The best 👌 👍 😍 This brand is super 👌 👍 💯 recommended
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Reviewed in the United States on May 25, 2026

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