What our customers say
A selection of recent five-star reviews, as written.
- ★★★★★
Ordered flishrc cobra. Communication was great. Ordered larger batteries but they were the wrong size. Olly shipped the right batteries and gave a refund for the difference I paid. Couldn't ask for more. Thanks for the help with the order.
Robert, 22 September 2026
- ★★★★★
Very helpful when the vehicle I wanted wasn't in stock. Very fast deliver too.
Anna Abbott, 17 September 2026
- ★★★★★
Excellent service speedy delivery and good customer service
GLYN, 10 September 2026
- ★★★★★
Great product and service. I enjoy buying from these guys. Thanks to radio-controllled.co.uk.
Paul Jordan, 3 September 2026
- ★★★★★
Dealt with customer services over an order I accidently placed, they were prompt and dealt with it will, completely refunded within a small window of time, thanks!
Oliver Galustian, 23 July 2026
- ★★★★★
Really good online rc store with some great products and sales on. The owner is very knowledgeable as well.
Simon, 19 July 2026
- ★★★★★
Product delivered promptly and in excellent condition 👍had very helpful and prompt responses from Olly to all my questions, I will definitely be using them again 👍
Mark Clucas, 30 January 2026
- ★★★★★
The customer service and advice were first class!
Steve Avery, 9 September 2025
- ★★★★★
The seller knew I was after one and very kindly informed me when they came back into stock so now have a Flywing Bell 206. Fantastic bit of kit. Well worth the wait.
Pete Goddard, 15 April 2025
- ★★★★★
Great service, car arrived fast and really well packaged. Also, I had a little problem....(which turned out to be me doing it wrong) but someone replied the same evening! Will definitely be buying from them again.
Graham Rousseau, 10 February 2025
About this product
Fine-tune your radio controlled car’s handling with Kyosho’s premium silicone damper oil. This 40ml bottle of 4000wt fluid is an essential tuning tool for any RC hobby enthusiast looking to optimise differential performance. By adjusting your damper oil weight, you control how much your differential “diffs out” through corners, directly affecting how your RC car parts work together. Thicker oils reduce differential slip for more predictable cornering behaviour—making this one of the most impactful modifications for off-road buggies.
- 40ml bottle of 4000wt silicone damper oil
- Premium Kyosho formulation for consistent performance
- Essential tuning fluid for RC car differential setup
- Stick with Kyosho RC oils to maintain reproducible setups and avoid brand incompatibilities
What our customers say
A selection of recent five-star reviews, as written.
- ★★★★★
Ordered flishrc cobra. Communication was great. Ordered larger batteries but they were the wrong size. Olly shipped the right batteries and gave a refund for the difference I paid. Couldn't ask for more. Thanks for the help with the order.
Robert, 22 September 2026
- ★★★★★
Very helpful when the vehicle I wanted wasn't in stock. Very fast deliver too.
Anna Abbott, 17 September 2026
- ★★★★★
Excellent service speedy delivery and good customer service
GLYN, 10 September 2026
- ★★★★★
Great product and service. I enjoy buying from these guys. Thanks to radio-controllled.co.uk.
Paul Jordan, 3 September 2026
- ★★★★★
Dealt with customer services over an order I accidently placed, they were prompt and dealt with it will, completely refunded within a small window of time, thanks!
Oliver Galustian, 23 July 2026
- ★★★★★
Really good online rc store with some great products and sales on. The owner is very knowledgeable as well.
Simon, 19 July 2026
- ★★★★★
Product delivered promptly and in excellent condition 👍had very helpful and prompt responses from Olly to all my questions, I will definitely be using them again 👍
Mark Clucas, 30 January 2026
- ★★★★★
The customer service and advice were first class!
Steve Avery, 9 September 2025
- ★★★★★
The seller knew I was after one and very kindly informed me when they came back into stock so now have a Flywing Bell 206. Fantastic bit of kit. Well worth the wait.
Pete Goddard, 15 April 2025
- ★★★★★
Great service, car arrived fast and really well packaged. Also, I had a little problem....(which turned out to be me doing it wrong) but someone replied the same evening! Will definitely be buying from them again.
Graham Rousseau, 10 February 2025
