76mm Pit Bike Wheels Belt Drive Conversion Kit
76mm Pit Bike Wheels Belt Drive Conversion Kit
Couldn't load pickup availability
ompatibility
This kit is designed to work with any bike with a 76mm sprocket, as shown below:

Notes
- NEVER HAMMER ANYTHING ON YOUR BIKE WHEN INSTALLING THE KIT.
Installation and Wheelieability
You are responsible for any alignment or spacing of your brakes, wheels, and motor. If you are installing this on a razor there will be lots of custom alignment work required. Check out Connor's video to get his take on the installation process and wheelieability of the v2 Razor kit.
Followup and stunting:
Marketing BS
Tired of cleaning chains or that piece of shit tensioner? Want to stealth around without Karens bitching at you because of that noisy chain? Me too. That's why I started using belts on all of my bikes back in 2021. I immediately fell in love with using belts instead of chains. I had to share this discovery with others. So, I quit my job and racked up a bunch of debt. I have no regrets and I am truly proud of what I was able to create. I am sure you'll love using a belt instead of a chain as much as I do.
Tough as Shit
The belt kit has been designed from the ground up to be tough as shit. The front pulley is made from 304 stainless steel. The rear pulley has been CNCed out of a huge ass block of aluminum.
Features
- Quieter than chains
- Smooth power delivery
- Rust-free stainless steel and aluminum or plastic pulleys with stainless hardware
- Easy install using basic tools and an angle grinder
- Maintenance free
- Slits for debris to pass through, including mud and small rocks (aluminum rear pulley)
- Easily removable front pulley using a crank arm puller or by hand with the spline shaft pulley
Plastic vs. Aluminum: Which Pulley Is Right for You?
Here's the straight talk: the plastic rear pulley is surprisingly tough. Seriously, it can take all the power you throw at it, performing just as well as the aluminum one. You won't need to lower your power, even with the extreme kit, by choosing plastic. The real choice comes down to just three practical things:
- Off-Roading & Debris: The plastic pulley has a solid face, meaning no slots for mud or grit to escape. The aluminum pulley, on the other hand, is built with slots to help shed debris. If you're constantly hitting the trails and getting messy, the aluminum one is probably the better pick.
- Crash Durability: If you wreck the bike and the pulley takes the full impact of the crash, the plastic one will likely crack and need replacing—or if you're lucky, some Shoe Goo will fix 'er up! The aluminum pulley is much tougher and has a far better shot at surviving a hard crash.
- Noise & Maintenance: The aluminum pulley is dead silent at low RPMs. The plastic one, however, isn't quite as silent and can sometimes develop a creaking sound. That little creak is an easy fix, though! Just a tiny bit of coconut oil applied where the pulley meets the freewheel should silence it. You can find the full details in the installation guide.
Pros and Cons
Pros
- Quiet
- No maintenance
- Clean
- Long-lasting belt life
- Smoother power delivery
Cons
- Initial price. Over the kit's lifetime, the savings from chain replacements, lube, and maintenance will make the overall price of the belt kit lower.
- Hardcore off-road dirt bikes use chains. Doing a full-throttle wheel spin while in the air and then landing hard puts a lot of strain on the drivetrain and can lead to a belt snap. The old V1 kits are very susceptible to this; the V2 seems somewhat resilient to this abuse. If you plan to do this, note that belt snaps won't be covered, and you should opt for the more durable aluminum rear pulley for enduro-style riding.
- Can’t do low tooth count front pulleys.
- Does not do well in deep snow. The snow builds up in the pulleys and can snap the belt.
What's Included?
- Rear pulley
- Front pulley(if you don't select to bring your own)
- 18-25mm wide belt depending on motor selection
- Front Pulley Removal Tool if the EC4P or MY1020 motor is selected
- Hardware marker- this can help to make sure none of the bolts or nuts come loose. Use this on the included motor shaft nut.
- Krikit: included with all orders
- Stainless steel hardware
- 4-5 countersunk m6 bolts
- 4-5 m6 nuts
- 1xm8 reverse threaded nut(goes on the MY1020 or EC4P motor shaft)
- 1xm8 washer for above nut
- 4xm12 washers- some arms need to be spaced slightly for clearance of the rear pulley.
Belt Tension Tool
Want to know how much tension is on your belt? The best way I have found is to use the Krikit. All kits will include this tool at no additional cost.
Installation
Be sure to check out the installation guide. Please note that damage from improper installation will not be covered in any way. Be sure to read through this carefully.

Questions?
How do I install it on my bike?
Check out the installation guide
Regen?
Absolutely. Just be sure to not overheat your motor and weld your freewheel.
SX vs MX?
The MX and SX have the same distance from the motor to the rear wheel so the belt length is the same.
What about all the other Razor models?
With a bit of work you can put a belt kit on the following razors:
- MX350
- RSF350
- MX400
- Pocket Mods
- Dirt Quad(Probably)
Let me know what model of Razor you want a belt drive kit for by filling out this form.
What about the old chain tensioner?
Try to unscrew it. I didn't have much luck unscrewing mine so i just cut the bitch out.
What about the old freewheel?
Freewheel stays but needs to be fixed/welded. The rear pulley mounts on to the freewheel just like the old sprocke. Highly recommended using a welded freewheel as this reduces wear and tear on your drivetrain drastically.
Should I worry about snapping a belt?
One time I snapped a belt while testing the limits of the belt's tension. Under normal tension the belt should not snap or skip. If you hear skipping you should check the tension on your belt. Be sure to check out our installation guide for proper installation techniques.
Does it squeek in the rain like my car belt?
No. Only v-belts do this. Timing belts don't slip or squeak even when soaking wet.
Mud?
Not so much with the V1 kit. The V2 kit has slots for debris to pass through the pulleys if you do a lot of mud trails.
What is better for off road riding?
For hardcore off road riding where sticks and shits gets in the gears chain may be better. Most hardcore dirt bike riders use chains. Probably for a good reason. I am working on a tool free belt replacement option that may work well for this scenario.
How did beta testing go?
International shipping?
Yes. Please contact us for details. Taxes and duties are a bitch but doable.
International shipping costs, taxes, duties and fees are never covered by beltsNshit even if we make a mistake and send you the wrong or broken product. Do not place an order if you are not accepting of these terms.