Replacing the brake disc and wheel bearing on your microcar is an important part of maintenance to ensure safe driving. This guide describes step-by-step how to replace the brake disc and wheel bearing on Ligier and Microcar models, but the principle is the same for other brands such as Aixam, Chatenet, JDM, Casalini, and Grecav microcars.
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Required equipment
- Socket wrench size 16, 17, and 24
- Allen key
- Torx wrench
- Socket size 19
- Flathead screwdriver
- Ball joint extractor
- Puller
- Press
- 2-post lift
- Personal protective equipment (PPE):
- Safety goggles
- Gloves
- Consumables:
- Threadlocker (e.g., Loctite).
Step-by-step: How to replace the front brake disc and wheel bearing on your microcar
1. Remove the wheel and brake caliper
- Lift the car and remove the four wheel nuts (torque: 45 Nm).
- Remove the wheel.
- Unscrew the central axle nut (torque: 125 Nm).
- Unscrew the two bolts holding the brake caliper (torque: 25 Nm).
- Remove the brake caliper and hang it – avoid putting strain on the brake hose. 
2. Free the steering joints, shock absorber & axle
- Loosen the nut on the steering joint (torque: 46 Nm) and use a ball joint extractor toseparate it from the spindle.
- Loosen the nut on the lower control arm ball joint (torque: 46 Nm) and remove it with the ball joint extractor.
- Remove the lower mounting bolt for the shock absorber (torque: 32 Nm). Remove the section of the axle and axle joint attached to the hub and spindle.
- Remove the brake hose bracket and free the shock absorber. 
3. Remove the hub and disc
- Pull the entire wheel hub and brake disc from the spindle.
- Separate the brake disc from the hub (four bolts).
- Use a press and a puller to remove the inner and outer wheel bearings.
- Remove any retaining ring (make sure it’s not damaged).
4. Install the new parts
- Press the new wheel bearing into the spindle – check the direction!
- Use threadlocker on the bolts holding the brake disc and brake caliper.
- Install the brake disc onto the hub.
- Reassemble the entire braking system on your microcar in reverse order.
Important torque values in Nm
- Wheel nuts (A): 45 Nm
- Axle nut (C): 125 Nm
- Brake caliper bolts (E): 25 Nm
- Steering joint nut (G): 46 Nm
- Ball joint nut (L): 46 Nm
- Shock absorber mounting screw (O): 32 Nm
Our final tips
✔️ Always ensure that the new bearing is correctly installed before pressing it in.
✔️ Always use threadlocker where recommended.
✔️ Check the direction of the disc – it must not be installed backward.
This or a similar procedure for replacing the front wheel bearing and brake disc on your microcar should apply to the following microcar models:
- Ligier (NOVA 2:nd version, XTOO 1, 2, MAX, S, R, RS, OPTIMAX 2, IXO, JS50, JS50L, JS60, JS RC, X-Pro & Flex)
- Microcar (MC1, MC2, MGO, M8, F8C & Cargo)
- Aixam (A540, A550, 300, 400E, 400S, 400L, 400SL, 400EVO, 400,4, 500SL, 500,4, 500,5, A721, A741, A751, CITY, ROADLINE, CROSSLINE, SCOUTY, GTO, COUPE, MEGA)
- Chatenet (STELLA, MEDIA, BAROODER, SPEEDINO, CH26, CH28, CH30, CH32, CH40, CH46 ..)
- JDM (ALBIZIA, ABACA, ALOES, Xheos and ROXSY)
- Bellier (JADE, DIVANE and OPALE & B8).
- Casalini (Sulky, M10, M12, M14, M20, Kerry).
- Grecav (Eke, Sonique).
Buy the right parts from us at SCP Microcar Parts
At minicarspares, we have all the microcar parts you need – from brake discs and wheel bearings to complete service kits for Ligier, Microcar, Aixam, Chatenet, Casalini, JDM, and Grecav. We offer fast delivery, reasonable prices, and world-class customer service.