Set block C

The SRC Set Block C: everything you need to check and replenish your chassis

When it comes to keeping a slot car chassis in optimal condition, having the right components on hand makes the difference between a smooth racing session and lost time in the pits. The SRC Set Block C, with reference RM0812, groups all the necessary elements for a complete review or replacement of this assembly into a single kit.

Kit Contents

This set includes exactly the following components:

• 2 Plastic screws 1.8 x 10
• 2 T1 Chassis springs
• 2 T2 Chassis springs
• 2 OSC O-rings
• 1 Block C

Having the differentiated T1 and T2 springs, OSC O-rings, and specific screws in the same package avoids the need to search for each part separately, streamlining both preventive maintenance and repairs after an incident on track.

Function and Performance

The chassis is one of the most sensitive elements regarding dynamic behaviour. The springs regulate the flexibility and return of the guide assembly, directly affecting corner grip and straight-line stability. The OSC O-rings provide the necessary damping for the chassis to operate smoothly, absorbing track irregularities without losing contact with the rail. The Block C is the structural piece that centralises and supports this entire mechanism.

Replacing any of these components when they show wear or deformation —especially the springs and O-rings— immediately translates into a more predictable response and a guide that maintains better electrical contact with the rail.

Compatibility and Installation

This set is designed for SRC models that use the chassis system corresponding to Block C. Before installation, it is advisable to check the condition of the housings and clean any remnants of old lubricant to ensure that the new components fit correctly. The plastic screws 1.8 x 10 should be tightened carefully to avoid stressing the chassis plastic.

Frequently Asked Questions

When should I replace the chassis springs?

When the car loses progressive grip in corners, the guide does not return smoothly to its central position, or visible deformation is observed in the spring. In competition, many tuners check them every few race sessions even if there is no apparent damage.

Are OSC O-rings interchangeable with other standard size ones?

The O-rings included in this kit are specified for the SRC chassis system. Although similar sizes may exist on the market, we recommend always using original parts to ensure the correct behaviour of the assembly.

Can I use this set as a preventive spare without waiting for something to fail?

Yes, and it is highly recommended if the car competes regularly. Having the kit in the pit drawer allows for quick replacement without interrupting the race day.

Are the included plastic screws single-use?

In general, plastic screws can be reused if they show no damage to the thread, but it is advisable to check them at each intervention. By including two units in the kit, replacement is facilitated when necessary.

The SRC Set Block C (ref. RM0812) is a complete spare parts kit for the slot car guide rail assembly, including plastic screws 1.8x10, T1 and T2 chassis springs, OSC O-rings, and the Block C unit. Designed for SRC slot cars, this maintenance kit ensures smooth guide movement, consistent rail contact, and reliable performance on track. Essential for club racers and collectors who demand precision and durability from every component.