T1 bench spring x4

Four T1 chassis springs to always have the spare on hand when you need it most

The chassis springs are one of those small elements that go unnoticed until they fail. The T1 Chassis Spring x4 from SRC (ref. RM0810) offers you a pack of four units so you never run out of this critical component during a preparation session or in the middle of a competition day.

Function and performance

The chassis is the assembly that houses the motor and allows it to maintain the appropriate tension on the pinion and crown gear. The chassis spring is responsible for applying that pressure in a constant and controlled manner, absorbing the small variations and vibrations that occur during running.

A spring in poor condition — fatigued, deformed or broken — directly translates to loss of contact between pinion and crown gear, excessive noise in the transmission and, in the most severe cases, off-track incidents due to erratic car response. Having spare parts of this type in the preparer's drawer is simply necessary.

Compatibility

This spring corresponds to the T1 type, specific for the chassis mounts of SRC chassis that use this format. Before making the change, check that your chassis mount is compatible with the T1 type by consulting your chassis documentation or contacting us if you have any doubts.

Installation and preparation

Replacing the chassis spring is a straightforward operation but should be done calmly and with the right tools. Some practical tips:

• First, remove the motor to comfortably access the chassis.
• Observe the position and orientation of the original spring before removing it, to replicate it exactly when installing the new one.
• Do not excessively force the new spring: it should be tensioned but not deformed from the very first moment.
• Once installed, check by hand that the pinion engages correctly with the crown gear before powering on the car.

Common mistakes

• Confusing the type of spring: there are different types depending on the design of the chassis. Make sure you need the T1 and not another format.
• Reusing fatigued springs: if the spring has already lost tension, replace it directly. Trying to recover it is usually a waste of time.
• Installing the spring with a hot motor: let it cool before handling the chassis to avoid burns and work more comfortably.

Ideal for…

This pack of four springs is designed for both club preparers who need to have stock of consumables, and for drivers who compete regularly and do not want an unforeseen event to leave them out in the middle of a race. Having four units allows you to face several seasons without worrying about this component.

Frequently asked questions

How many springs does this pack include?

The pack contains 4 T1 chassis springs, reference SRC RM0810.

How do I know if my chassis needs the T1 type?

Check the technical sheet of your SRC chassis or, if you have doubts, write to us with your chassis reference and we will guide you without obligation.

How often should the chassis spring be changed?

There is no fixed interval: it depends on usage, the track, and the level of demand. The most practical approach is to check it every time you notice noise in the transmission or an irregular response from the car.

Can I use this spring on chassis from other brands?

This is a spare part designed by SRC for its own chassis. We cannot guarantee its compatibility with mounts from other brands without prior verification.

Is it complicated to make the change at home?

Not particularly. With some practice and the basic slot tools, the replacement can be done in a few minutes. If it’s your first time, consult a tutorial on preparing SRC chassis to be sure.

The SRC RM0810 T1 chassis spring pack includes 4 units and is an essential spare part for slot car chassis maintenance. Designed for SRC T1-type motor mounts, it ensures consistent pinion-to-crown pressure and reliable transmission performance. A must-have consumable for slot car builders, club racers and hobbyists looking to keep their cars in top condition.