SKU: 79779634608

Heavy Hitter 420 Primary O-Ring Chain Drive Conversion Kit

$89.90 $99.89
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  • USA
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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30

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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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4.8 ★★★★★
Based on 10 reviews
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B
Verified Purchase
BrianNH
Omaha, US
★★★★★ 4
Nice simple effective inexpensive watch
Color: Black, Size: One Size
I just ordered my second one of these. They are cheap, keep good time, show me the date, and last a long time. My last one lasted over 10 years. The only thing wrong with the last one was that the battery needed replacement (I think it was only the second time it had needed a battery in all the years I had owned it) at the same time the band wore out and broke. Rather than buy a new battery plus a new band, I just got a new one. I am hard on watches, and this one stood up very well. I regularly shower and swim with it on, and no problems. It doesn't have a lot of functions I don't need, like stopwatch, multiple time zones, etc. I have found those things more of a bother than a benefit, because any time you bump the knob against something, the display changes and you're always pressing all the buttons multiple times just to get the simple info needed- like what time is it and what is the date DEC 2020 UPDATE - I am ordering another one of these. The last one, I bought in mid 2019. Early in 2020, the date function quit working. By the end of November, the whole thing quit working. I know it's not the battery, because the light still works. So I am reducing my review by one star, and we'll see how well a new one does. The watch before the current one lasted about 10 years, so getting only a little over a year out of the current one is not good. Perhaps the current one just wasn't as good as the previous ones. It's entirely possible that they keep making the same watch out of lesser and lesser materials and workmanship.
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Reviewed in the United States on November 21, 2016
A
Verified Purchase
Ann
Belleville, US
★★★★★ 5
Timex. Life is ticking.
Color: Black, Size: One Size
A family member is headed off to Navy boot camp and is required to have a watch-a black watch. But...it cannot be anything in the realm of, be like, or indeed be an Apple Watch. The search began for a simple timepiece. Economy was important since after the 8 weeks of boot camp ended, use of the current watch would be resumed. Enter Timex...(the world's largest manufacturer of watches and mechanical time fuses). During the Amazon search there were all manner of economically (actually cheap) watches noted to be available, so many that it was simply overwhelming. Timex...tried and true since 1854 (just a fun fact, but actually attests to the quality of the company) was the chosen one. A simple but reliable timepiece was required, and certain qualifications were needed. First, it had to be an accurate time keeper and have a second hand, and have a date indicator. Secondly, there had to be an element of water resistance (this is Navy boot camp after all, so water is important!). Thirdly, it had to be black. Fourth, no bells or whistles whatsoever. Finally, a face with 24 hour/military time would be a bonus. This Timex Rugged Core Expedition Analog Watch fit the bill. Upon arrival it was packaged in a traditionally square box the size of the watch, no frills but sturdy enough to ward off damage during shipping. Once opened the first thing noticed was the face of the watch. It was black, with white numerals in both standard and 24 hour/military time, had a red second hand, luminescent hour and minute hands, and date indicator. The nylon band was also black, had ridges, and had a fastener like a belt. At the end of the band were two extrusions which seemed to lock the excess band into place once it was fastened. After wearing a number of days, the watch has kept excellent time matching the Apple Watch. Both watches were worn on the same arm at the same during the day and during sleep. They were worn during regular daily activities, during exercise and during strenuous garden work such as hauling, digging holes, dragging 40 lb bags, etc. Time was checked multiple times per day, and the time on each watch was exactly the same every time checked. The Timex was water resistant during a 5 minute shower and while submerged water. This is not a dive watch but, according to the ad, is water resistant to 50 feet for light swimming. The performance of this watch has been more than satisfactory executing in stellar fashion everything it was stated to be able to do. I can recommend this watch for boot camp purposes without reservation. Top 3 Likes: -Reliable keeping accurate time, has military time numerals -Is water resistant as tested -Is black, attractive with luminescent hands, second hand, date, and light up face Top 3 Dislikes: -The band is stiff and somewhat difficult to latch -The two little extrusions do anchor the band, but are difficult to undo to take off the watch -Only two dislikes!
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Reviewed in the United States on September 28, 2024
R
Verified Purchase
rlbrandner
Birmingham, US
★★★★★ 5
Timesx quality still rules.
Color: Black, Size: One Size
Excellent everyday watch. Stylish, easy to read, and accurate. Needed a knock around watch and this puts up with it's share of abuse. It's a bit more expensive than some others in this class, but Timex is well-worth the money in quality. I use mine for eveything except when I need something more formal.
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Reviewed in the United States on December 1, 2025
A
Verified Purchase
Alex
Waukegan, US
★★★★★ 1
Dependability and accuracy
Color: Black, Size: One Size
This watch is awful, I had it for a month and it lags behind and does not keep the right date. I am a nurse so I need to have accuracy and dependability and this watch is not it.
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Reviewed in the United States on February 16, 2026
S
Verified Purchase
SB
Lake Worth, US
★★★★★ 5
Good stuff
Color: Black, Size: One Size
fits well, good for every day wear, looks great, great value. the black is a good color. would have loved some more insight into how to change the date but other than that would def recommend
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Reviewed in the United States on January 31, 2026

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