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Primary Chain Kit for Sur Ron Light Bee

2 reviews


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The Sur Ron Light Bee Primary Chain Kit allows for greater reliability and improved efficiency.

With its hardened steel sprockets and premium DID chain, it’s extremely robust, it will save you the trouble of broken belts.

The Chain Kit is particularly recommended for sandy or muddy conditions and for the higher powered bikes.

Shipping and returns

We ship worldwide (batteries are limited to Europe). Products indicated as being in stock are shipped in less than 72 hours after you place the order. Our warehouse is located in France, so transport cost and time may vary depending on the delivery country.

Changing one’s mind is human. That’s why you have up to 30 days after the delivery of your order for a return. Just let us know and we will take care of all the details.


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We offer different payment methods to accommodate your preferences: Credit Cards, PayPal, Wire Transfer & Klarna.

Your order is automatically validated as soon as the payment is confirmed. In case of a return, your refund goes to the payment method used for the order.

Your selection is being restocked, shipping in days. we’ll be shipping it in no time! Your selection is out of stock, we don’t know yet when we’ll have it back 🙈


The Chain Kit replaces the belt and pulleys by a chain drive and two sprockets. It brings a huge improvement in two ways:

The Sur Ron Light Bee Primary Chain Kit is composed hardened steel 13T motor sprocket and 30T reduction shaft sprocket with a precut DID chain. The 13T/30T combination preserves the original gear ratio.

In addition, changing a chain is way easier than a belt replacement as there is no need to remove the swingarm.

Technical details

Alloy Heat treated, zinc plated hardened steel
Chain DID 420D
Compatibility Plug and play with the reduction shaft

NB: you will need to remove the swingarm to replace the reduction shaft’s pulley. So make sure that you have the swingarm removal tool.

Rider’s questions

1 - 2 of 2 questions

Hi , it is 420 or 219 ? 1 answer

Bernardino Castro

Quentin mto logo

Hi! It's 420, 219 is too fragile in our opinion.

what is the cahin lenght 1 answer


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User reviews

5 2 reviews

1 - 2 of 2 reviews





Enfin plus de courroie

Se met parfaitement en place, plug and play Un peu bruyant au début une fois rodé, ça va beaucoup mieux, et ça permet d’être un peu plus entendu !!!

I recommend this product




Un service réactif

Complètement satisfait de mon premier achat chez MTO. Merci à vous.

I recommend this product