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Drive Belt for 80T / Mid 669 / 725 / 788

$39.00 $19.55
(You save $19.45)
Usually Ships in 24 Hours

Product Description

Drive belt used on Hammerhead 80T and TrailMaster MID karts.
Look at the top of your belt for the number 669 or 725.
The 669 belt is a 1/2" shorter than the 725 and is the most common.
The 725 belt is used on the TrailMaster MidXRXR model with reverse and on HammerHead 80T and Mudhead karts.

Product Reviews

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  1. quick delivery/ good product

    Posted by Louis on 13th Dec 2017

    belt came on expected date and was just what we needed.

  2. very happy

    Posted by mike bowden on 12th Dec 2017

    belt is of good quality , works great on my 2018 trailmaster minibike

  3. Works on his xrx/r

    Posted by Harvey Bryant on 25th Oct 2017

    This belt worked great on my Grandson's Trailmaster mis xrx/e go kart. Replaced in 15 minutes .

  4. After market torque converter and belts.

    Posted by Lee Grindle on 9th Oct 2017

    I purchased the T30 bolt on torque converter for a 212 cc preadtor. I have no complaint about the products. I put it on a big tire cart and my daughter has had a blast. I would recommend this setup for any and all go-karts. More torque and to me better speed. I have rode my daughters and I am 6'4" at 275# and it gave me a great ride. Go Power Sports is the bomb fast shipping and friendly service. I recommend them to anyone needing go-kart parts.

  5. Unbeatable Company for parts, price, shipping and customer service

    Posted by Sam on 27th Sep 2017

    Drive belt is a great product at a fantastic price and super fast shipping, GopowerSports is a super company with unbeatable customer service, have ordered several parts and they are now my only go to company for my grandsons trailmaster go kart

  6. Good upgraded belt for a good price

    Posted by Mike M on 19th Aug 2017

    Bought a new Trailmaster Blazer 200R and for some reason the belt got destroyed within 4-6 hrs of ride time. I watched some belt sizing and install videos from gopower, and ordered a couple belts (1 for a back up). After close investigation, I realized the drive shaft was missing the bronze bushing, so I ordered 2 of those also. I ordered them on a Saturday and got them Wednesday from Texas to Pennsylvania..., So I'm impressed.., and that's how you run a business. Unlike the company I bought the gokart from, where I called them, they had me fill out an online form, and other than a conformation, 1 week later.., I haven't heard from them yet. With that being said, I'm glad I ordered what I needed right away from gopowersports to let my boy enjoy his new buggy, they saved the day in my mind.

  7. Fits and works as expected

    Posted by Darrell on 14th Aug 2017

    Received product on time. Was correct part

  8. Great 669 belt!

    Posted by Jonny on 30th Jul 2017

    The 669 30 series belt holds up great! I purchased it for a replacement and is lasting longer than any of my old belts. I have her on a Honda Gx340 go kart/buggy with a 30 series torque converter and works great! Thank you go power sports.

  9. Looks like good quality

    Posted by Anthony Mellott on 25th Jul 2017

    The belt works as it should no issues so far

  10. HH 80T - 725 belt

    Posted by Kart Dad on 29th Apr 2017

    OEM belt, easy order, delivered in 3 days frm Tx to Md, @ $20 ea was half the price of other sites so I bought 4 instead of 2. Great site, has near all service parts for Hammerhead 80T. I'll be back...


    Posted by PATCH on 13th Feb 2017


  12. Drive belt

    Posted by Unknown on 24th Jan 2017

    Prompt delivery, good price, good product and easy to install!! Grandson happy!

  13. 669 Belt

    Posted by Unknown on 20th Sep 2016

    Fast delivery, exact part, will use GOPOWER SPORTS AGAIN . YHANK YOU

  14. My shopping with gopower sports

    Posted by Vinny Gamba we build all kind off go carts on 20th Sep 2016

    The drive belt for my cart was perfect and it was my 3rd belt with no problems.

  15. My shopping with gopower sports

    Posted by Vinny Gamba we build all kind off go carts on 20th Sep 2016

    The drive belt for my cart was perfect.and it 3 belt with no problems.

  16. Drive belt

    Posted by Unknown on 14th Sep 2016

    Excellent customer service, received in timely manner, ordered two belts so we would have an extra one, price wise very good. Grandson happy now!!

  17. Top Grade Belt- Excellent Customer Service!

    Posted by Tricia on 11th Apr 2016

    We ordered this belt for our 2015 hammerhead Mudhead ATV. My kids are small and their driving skills cause the ATV to go through belts fairly often! Go power sports has the best price for this belt and the shipping was extremely fast and as you know with kids fast fix of the ATV was the goal! We ordered two belts to have one as a spare! Highly recommend go power sports for all your off road needs! I missed printed my address in my order so I called and left a message after hours and they made the address correction within minutes of opening for the day and the belt arrived as ordered! Very appreciative of their quick attention and response to my address error!

  18. Excellent customer service

    Posted by Dave on 24th Mar 2016

    Got what I needed delivered quickly. The customer service was top notch and informative well beyond what I called for. I will be a life long customer...

  19. Good

    Posted by Unknown on 14th Mar 2016


  20. Great Service and Operation!

    Posted by Unknown on 15th Feb 2016

    I wanted to pass along my thanks for shipping me my order on-time with the appropriate part numbers. You never know what you're going to get by ordering on-line as I've had issues in the past for Kart parts with other on-line competitors. Usually you never get to put a face with a name, however I was fortunate enough to be able to stop by your showroom/warehouse this week while on business and it was nice to receive great service and see a neat/organized operation. Thanks again for all your assistance. You'll have my business going forward.

  21. excellent product

    Posted by Sam Price on 25th Sep 2015

    Correct belt, fits perfectly, excellent service and super quick shipping, would recommend Gopower Sports highly to everyone and will order again.

  22. Quality product

    Posted by Doug miller on 2nd Sep 2015

    I have ordered a few things from these guys and it comes fast!!! I bought this belt as a replacement for a belt that came in with my torque converter. It was a perfect fit and so far no obvious signs of wear. And the best part, once this belt goes it is printed clearly on the belt where I got it from and the size.

  23. Excellent quality

    Posted by Scott on 5th Jun 2015

    Perfect condition. Not sure what came on the gokart originally, but this belt is top quality.

* Free Shipping on most orders over $200 on most orders within the continental United States.

Adult signature required on all orders over $300.00!

* Certain bulk items and large unit purchases, such as go kart kits may not be eligible for free shipping offers.
* Free Shipping offers can take 1 to 3 business days to process and 5 to 10 additional days to arrive.
* For all Free Shipping offers, we will ship via our carrier and method of choice. We cannot guarantee a specific carrier or shipping method with Free Shipping offers.
* If you have a need for the product by a certain date, we recommend you choose to Upgrade to your Shipping Method at checkout
* Please allow 24 to 48 additional hours (during high demand periods such as Christmas).
* Exclusions apply (no International Orders receive free shipping.)
Listed shipping charges are for shipments for the U.S.
* Shipments to all other countries will incur additional shipping charges, call for a quote.
* Parts are shipped via Fedex or USPS to your address.
* Fedex shipments require a street address.
* You must include a complete address.
* Your order will not be shipped without a full address.
* Same day shipping Monday thru Friday if placed before 1PM
* Standard business delivery is Monday - Friday
* Standard home delivery is Tuesday - Saturday
* Secound Day does not include weekends or holidays




CANADIAN ORDERS due to current NAFTA regulations duties will be imposed by FEDEX at a higher than normal rate. We suggest you should check with your local custom office.

All import duties and taxes that your country applies to purchases are the responsibility of the receiving customer. Please be aware of these charges before you order. Our shipping quote does not include these charges.  If you refuse or send back the package, unfortunately the package will be destroyed and the order will not be refunded due to the high cost of paying return duties and taxes. 

Free Shipping offers DO NOT apply to International shipments.

We only use Fedex for shipping International orders.

Due to the increased risk of fraudulent activity, we may have to ask for further information for your order. Please include a valid email address and telephone number with your order.

Due to the high cost of shipping to International locations, we recommend calling or emailing us with any questions you may have about the product and it's sizing. Unfortunately, due to the high cost of shipping, International orders are NOT eligible for returns or exchanges.

Order Cancellations, Refusals, and Address Changes

Requests must be made by phone or email. Requests must be made by 11AM EST the day after the order was placed. If the order was placed after 12PM, on a weekend or on a holiday; the timeframe will roll-over to 11AM EST on the next business weekday.

If sends the correct items to the address on order and it is refused by the customer, all shipping charges to and from the customer will be deducted from the refund. This includes all shipping charges for any items advertising Free Shipping.

If you find yourself in a special circumstance that requires you to refuse a package, please contact us first for approval.

Adding Additional Items to a Previous Order

We cannot guarantee that requests to add items to previous order will ship with the original order. We will make every attempt to do so but we cannot guarantee it. Additional shipping charges will apply. 

If You Input The Wrong Ship To Address

Be sure to double check your shipping information once you get your order confirmation email.

Unfortunately, every carrier charges additional amounts to either redirect or reship packages due to incorrect addresses. If you omit the correct street address, apartment number, PO box, zip code, etc. we have no choice but to pass on the additional charges to you for the additional cost. This can range from $5 to $35 depending upon the region and the reason. Please contact us as soon as possible if you have entered the wrong address on the order.

Back Orders

Despite our best efforts, particularly popular items can sell out and when this is the case, we will inform you of the expected earliest delivery date. Please inform us should you wish to cancel at any time and you will receive a full refund.

Return Guidelines
No returns on electrical items.

  1. Click Here to request an RMA from your Completed Orders section in the My Account section.
  2. The item(s) must be returned within 30 days of the order date.
  3. Include the original receipt or a copy of receipt with the returned merchandise.
  4. The item(s) must be returned without being used or damaged in any way.
  5. Send the return items PREPAID to our warehouse at:
Returns Department

1375 S. Main St.
Keller, TX 76248

Product Videos

How to measure for a go-kart drive belt. 02:05

This video will show you how to properly measure your driver and driven to get the proper size drive belt for your go-kart. Order belts online at: How to replace the reverse cable on a 150cc Hammerhead, TrailMaster and Manco go-kart. This reverse cable works on all Hammerhead 150cc go-karts as well as most Carter and other Chinese go-karts. Total length of cable is 61" with round balls on both ends. Keep a spare around to avoid down time. Order now at: Find more off road go kart parts at #gopowersports #KartRacing #GoKartRepair

  • How to measure...
    This video will show you how to properly measure your driver a...

icorating5.png Awesomeness
Posted by James Gagnon on 12th Jul 2016
Switched from a centrifical clutch to this torque converter clutch. What a phenomenal difference off the line. Seriously, the difference in acceleration from a centrifical clutch was like adding a turbo (interesting concept to consider) to the kart.

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