it’s with great regret that we will no long be operating due to divorce. Thank you.






RATBITE started out as a simple idea, with the single aim of stopping a wheel being ruined on a hardtail. From that  we developed simple hand-made inserts before the product was developed into what it is today. We keep developing with the help of rider input from around the UK. Our products have been put through their paces all round the world, with wins in Downhill, Enduro and CX events. 


All our inserts are produced from a closed cell polyethylene foam, this means they are light and non-absorbent. As they are designed to sit inside the tyre rather than fit close to the rim and are easy to install. RATBITE inserts give the tyre a firmer sidewall (reducing tyre roll) giving a unique handling characteristic. Our inserts compress under impact,  dissipating forces and protect the rim from damaging impacts. Due to the fact our inserts work inside the tyre with a snug fit, it is vital that the inserts ordered are for the correct size tyre you are intending to fit them in. Rim width doesn't effect how our inserts work so regardless of whether you run 19mm rims or 35mm rims the insert will be the same.


We produce products that work effectively and don't cost a fortune. After all why would you pay more than something is worth, to protect it. All of our inserts are £20 or less per wheel, making them far less expensive than a new tyre.

RATBITE products are always trying to develop, to achieve the best possible product we can. We have developed inserts for the mountain bike market, CX and gravel markets and have a DH specific version now being tested.



All our inserts are made from a closed cell PE foam, meaning it doesn't have a sponge effect on sealant. The technical specification states it will hold 0.5% of a fluids volume.


RATBITE inserts weigh between 25g for the CX inserts and up to 90g for the DH specific inserts. The lightest insert system on the market.


Due to the way they are designed, RATBITE inserts are easily installed and the MTB inserts, if done correctly, can be installed without any tools and do not need special valves to be fitted.


Our products will only be replaced if they are proven to arrive damaged or been lost in the post. There is no warranty given nor implied as the products are a sacrificial part. 


RATBITE inserts are designed as a protection system, they will not and cannot stop all damage to a wheel and tyre setup. Please do not think they will make your wheels INDESTRUCTABLE.

*It is suggested that you check your insert for damage and replace accordingly.*


We are constantly developing our products to be the best on the market. Tested in the real world by real athletes gives us a better idea of how a product will perform. Tested and developed with the help of our supported riders and satisfied customer base.