Replaced By The Extremely Overkill V2 Kit

Out of Stock? 

The V1 full kits are out of stock for the foreseeable future.  You can still get replacement parts(such as aluminum and plastic rear pulleys or belts).  The plan for now is to only stock V2 kits. Maintaining two versions ended up being too costly time-wise and financially.  

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.  

V1 or V2? 

The V2 kit is designed to handle Electro & Company's Extreme kit or basically anything you can throw at including mud.

The V1 kit is designed to tackle Electro & Company's stock ultimate kit level of performance(5-6kw or 80 battery amps and 160 phase amps).  If you are running an EC4P, ride hard, carry heavier loads(220+lbs), or increase the controller's power settings too much you will want to check out the V2 kit.  You are welcome to try more amps but if your belt snaps from this it won't be covered under warranty.  

Tough as Shit

The belt kit has been designed from the ground up to be tough as shit.  The front pulley has been CNCed out of a single block of 304 stainless steel.  The rear pulley has been CNCed out of a huge ass block of aluminum.  

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.  V1 kits are very susceptible to this but 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. 
• Can’t do low tooth count front pulleys.

Features

• Quieter than chains
• Rust-free stainless steel and aluminum pulleys with stainless hardware
  
• Easy install using basic tools and an angle grinder
• Maintenance free
• Easily removable front pulley using a crank arm puller
• Smooth power delivery

Motor Compatibility

Fits any double d-bore motor shaft including:

• MY1020(including Vevor and Kunray)
• Stock brushed motors

Not supported

• EC4P(V2 kit required)
• KR5V
• FW11

Gear Ratio Overview

Understanding your Razor Bike's gear ratio is key to predicting its torque and top speed.  The Kit comes with the following pulley sizes:

• Rear Pulley: 79T aluminum or 78T plastic
• Front Pulley: 14 teeth

This results in a gear ratio of 5.64 (79/14), comparable to a 12.5T T8F sprocket with a 72T rear. 

Weight

Total: 583g

• Rear pulley: 392g aluminum
• 936 Belt: 97g
• Front: 94g

What's Included?

• Front pulley
• Rear pulley
• 16mm belt
• Hardware marker- this can help to make sure none of the bolts or nuts come loose.  Use this on the included motor shaft nut.  
• Front Pulley Removal Tool
• Krikit: included with all custom and Electro & Company extension kit orders. 
• File- for use on old beat-up motor shafts only.  Use with caution to file out imperfections only.  Most will never need to do this.  
• Stainless steel hardware 
• 4x20mm countersunk m6 bolts
• 4xm6 nuts
• 1xm8 reverse threaded nut(goes on the motor shaft)
• 1xm8 washer

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 with Electro & Company or custom extension will include this tool for free. 

Welded or Fixed Freewheel Required

We require all belt kit customers to have a fixed or welded freewheel.  If you do not, we will not be able to cover any broken components such as motors, wheels, frame, etc... I am not just saying this because I sell welded freewheels.  I have to sell the welded freewheels because many beta testers and customers have found that the stock freewheel doesn't last long and causes extreme drivetrain ware and failures.  The stock freewheel was not intended to have the level of power you push through your bikes.  Trust me, weld that freewheel!

If you do not already have a welded freewheel and would like to add one to your order, get it for 50% discount when ordering with a belt kit.  This discount will apply automatically on checkout.  

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.  

Shoutout

Special thanks to Chris Wilkens for the blue RSF plastic of the plastic rear pulley🤘.

Thanks for the kick ass video Joe Benson