Rear hub 25x40 black complete CRG

Summary: the ground connection

The wheel hub is the critical interface between your kart axle and the rim. In the categories Mini, cadet or bambino (using 25 mm axles), the rigidity and accuracy of mounting the hub are capitally. This model CRG, In black anodized aluminum, offers excellent torsion resistance while remaining lightweight, ensuring efficient power transmission and good handling.

- Technical specifications

- Mounting Tuto: Expert Precautions

Mounting a hub seems simple, but it is a piece that undergoes important constraints. Here's how to do it in the rules of art:

Mounting steps

1. Cleaning the axle: Before putting the hub, perfectly clean the axle with a clean cloth. Check that there is no burr or deep scratch.

2. Light lubrication: Apply a very fine lithium grease film to the axle to prevent the hub from "flu" with time (oxidation).

3. Positioning: Drag the hub to the desired position.

4. Tightening: Screw the tightening screws (hub clamping bolts) progressively. Do not block a screw completely before tightening the other. Alternate between the two for uniform pressure on the axle.

5. Wheel studs: Check that the studs are well screwed thoroughly in the hub before mounting your rim.

💡 Michel's trick

"The classic error is too much tighten the locking screws on the axle. The trick: A hub must not be tight to deform aluminum. If you tighten too much, you create a local stress on the axle, which can make it fragile. My Pro Council: Use a torque allen key if possible, or tighten 'to the' plus a quarter turn 'in contact. And above all, always check your hubs after a track output or a rear shock: a hub that has moved can have marked your axle, which will make everything future width adjustment very difficult. "

❓ FAQ SEO (Frequently Asked Questions)

Q: Is this hub compatible with all Kart brands ?

A: The 25 mm diameter is a standard in the mini / cadet categories, so yes, it will rise on any axle of 25 mm. However, the design and the offset may vary depending on the marks.

Q: Why choose an anodized aluminum hub rather than magnesium ?

A: Aluminum (this version) is ideal for mini / cadet categories because it offers a good compromise between robustness and cost. Magnesium is usually reserved for pure competition to gain weight, but it is more fragile and oxidizes faster.

✅ Ready for mounting ?

For a complete installation, did you think to check the status of:

• [Essieu 25mm] (If it is scratched, the hub will have trouble holding)

• [Écrous de roues] (To set your rims on this new hub)