Heavy Hitter 420 Primary O-Ring Chain Drive Conversion Kit
SKU: 79779634608

Heavy Hitter 420 Primary O-Ring Chain Drive Conversion Kit

Sale price$89.90 Regular price$99.89
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

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Description

Heavy Hitter 420 Primary O-Ring Chain Drive Conversion KitImportant Notice: When installing, make sure your chain tension is not tight! Any chain drive that you install should have loose chain tension! Please check the fitment tab for important motor info. The Heavy Hitter Primary Drive Conversion Kit was designed for those wide open throttle riders who just keep snapping belts. Why the Heavy Hitter kit is the best? Replacing a belt drive with a chain drive will lower the bike's efficiency, which in turn

Important Notice: When installing, make sure your chain tension is not tight! Any chain drive that you install should have loose chain tension! Please check the fitment tab for important motor info.

The Heavy Hitter Primary Drive Conversion Kit was designed for those wide-open throttle riders who just keep snapping belts. Why the Heavy Hitter kit is the best? Replacing a belt drive with a chain drive will lower the bike's efficiency, which in turn affects power delivery.

Chain drives are stronger, just not as efficient. Heavy Hitter's goal with this chain drive is to give you maximum performance by providing the lightest kit on the market! The primary chain drive sprockets are machined from 7075 T6 billet aluminum and have been put through the hardening process with the anodized black finish.

This kit comes with a high-quality o-ring chain to offer the longest lifespan. If you want your primary drive to perform even better you can use a standard non-o-ring chain, however, the lifespan of non-o-ring chains will be shorter. The provided o-ring chain is equipped with a master link, facilitating straightforward replacement without necessitating the disassembly of the swing arm.

NOTE: This conversion kit maintains your bike's original gear ratio, and OEM motor alignment. Your bike's fitment will be labeled on the motor sprocket and should always face outwards! 
-Aluminum sprockets always have a shorter lifespan than steel sprockets. The purpose of this kit is to offer maximum performance

Features

  • Machined 7075 T6 billet aluminum sprockets
  • Lightweight  for maximum performance (Will have a shorter lifespan than standard heavy steel configurations)
  • Gold 42 link O-ring chain W/Master link included 
  • Best efficiency-rated chain drive on the market

Fitment

  • Sur Ron LBX
  • Segway X160
  • Segway X260
  • E Ride Pro-S (Does not work with XLB-60 Motor)
  • E Ride Pro-SS (Does not work with XLB-60 Motor)

Important Notice: When installing, make sure your chain tension is not tight! Any chain drive that you install should have loose chain tension!

This is the known and tested compatibility for this product. Factory variations, dealer options, and aftermarket modifications could affect compatibility in specific case. Please verify compatibility to the best of your ability before purchasing.

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: 79779634608

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Amazon Customer
Lowell, US
★★★★★ 4
Good but not great
This tooth paste tastes very good but I'm not sure it has enough grit to keep teeth clean. My kids have to brush at least 3 times a day to keep their teeth white and not yellow. I help them brush at least once a day and we have had good check ups while using Boka
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Reviewed in the United States on December 20, 2025
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Christopher
Boise, US
★★★★★ 5
Love it !
Size: 4 Fl Oz (Pack of 1), Set name: A. Charcoal Yuzu Mint
I ordered Boka Fluoride-Free Toothpaste because I wanted a natural alternative without fluoride. It has a pleasant, mild mint flavor that isn’t overpowering, though I have to say it has a slight taste that reminds me of a banana peel kind of unique but not unpleasant. The toothpaste has a smooth texture and cleans well without being harsh or drying. After using it for a few weeks, I’ve noticed my teeth feel fresh and my gums aren’t irritated at all. It’s a great option if you’re looking for a fluoride-free toothpaste that still gives you a clean, fresh mouth. I’m happy with this product and plan to keep using it.
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Reviewed in the United States on August 4, 2025
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Denise
Natrona Heights, US
★★★★★ 5
Kid and mom and dental professional approves. P.S get the floss too.
My toddler loves this toothpaste. He gets so excited when he sees me load up his toothbrush for the evening. I like that it is fluoride free so I don’t have to worry about him eating it. Because he will, because he is 16 months old. I love that it still has the remineralizing component (anti-cavity, strong enamel) of the nano-hydroxyapatite. As a dental hygienist (and mom) this is important to me. Personally… the vanilla cardamom is not my favorite flavor. I wanted to try out the limited edition and I like cardamom (just not in toothpaste apparently) However, my son loves it! Boka has lots of different flavors I’m sure we will try over time. I’m sure I will find one I like better. P.S Boka floss is amazing. I recommend it to many of my patients, and I use it at home.
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Reviewed in the United States on April 24, 2026
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Miss Havisham
Belleville, US
★★★★★ 3
Torn About Whether to Keep Using
I bought the Vanilla Cardamon flavor, because I'm allergic to mint, and it makes my mouth swell. It tastes nice. The "flavor" doesn't last a long time, so you don't necessarily get that fresh breath feeling. The toothpaste works fine. There seems to be some controversy over whether Nano Hydroxyapatite Toothpaste really protects teeth as well as fluoride, but I know some people swear by it. Obviously, there is also lot of controversy regarding fluoride and whether it's healthy, so I get why this might be a better option for some. I've been using it for about a year, and I got a fairly bad cavity recently, but of course, this is just anecdotal evidence. I'm not sure whether I'll keep using it or not.
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Reviewed in the United States on December 13, 2025
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Mina
Omaha, US
★★★★★ 5
Great for sensitive teeth
Size: Pack of 3, 4 Ounce, Set name: E. Ela Mint, Coco Ginger, Lemon Lavender
If you have sensitive teeth, these are great. I had prescription toothpaste and couldn’t get it anymore and picked this up. It’s helped tremendously. No different than normal toothpaste consistency-wise but the flavors are the best.
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Reviewed in the United States on April 11, 2026

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