Summary: Precision for young drivers

The version R 25-31 is the evolution of the steering column for short wheelbase chassis (mini). The dimensions are adjusted to provide a leverage adapted to the force of young drivers while maintaining a high level reactivity.

• Specific geometry: The code R 25-31 indicates the spacing and height of the anchor points of the rods. This configuration helps keep an incisive front train without being too physical for a child.

• Quality of construction: Same as adult models, it uses a chrome-molybdenum steel capable of collecting the constraints of the competition while remaining light.

• Modularity: It usually has two mounting positions for the rods to adjust the ACKERMANN effect according to the track conditions (dry or rain).

- Technical specifications

- Mounting tutorial: maximum security for the mini

1. Checking the lower ring: On mini chassis, the column ring (often in teflon or high density plastic) wears faster because of frequent shocks. Check that there is no radial game before mounting the new column.

2. Height of the steering wheel: Adjust the height using the Ø10mm spacers for the young driver to have the arms slightly bent. A column too high or too low fatigue drivers and reduces its accuracy.

3. Freedom of movement: After tightening the Nylstop nut at the bottom of the column, the direction must fall from one side or the other under its own weight. If there is a hard point, loosen slightly.

4. Securing: The clip or the safety clip is essential. In mini, the vibrations are important and the nut should never be able to dislocate.

💡 Michel's trick

"In a mini category, the track outputs are common. The trick: After each 'Touchette' with another kart, do not just look if the rods are straight. My Pro Council: Check the welding zone between the axis of the column and the plate where the rods are attached. If the paint plays or crack there is that the steel worked and started the break. In this case, do not wait: Replace the column for child safety. "

❓ FAQ SEO (Frequently Asked Questions)

Q: Why choose R 25-31 rather than the adult version ?

A: The adult version is too long and its rod geometry (R 35-40) would make direction much too heavy and violent for a young driver on a short chassis.

Q: Is it compatible with the chassis of other brands in the group (Maranello, CD) ?

R: Yes, if the chassis uses the front train standard CRG Mini, it will be perfectly compatible.

Q: how to straighten a twisted column ?

A: We never stand up a steering column. The steel once folded loses its elastic properties and becomes brittle. For driver safety, any twisted column must be discarded.