Shimano PD-GR400 Flat Pedals - Black

Use a pedal wrench to unscrew the pedals from the crank arms. Remember, the right pedal typically unscrews counter-clockwise, and the left pedal unscrews clockwise.

The frequency of pin replacement depends on riding conditions and frequency of use. Inspect the pins regularly and replace them when they become worn or damaged.

Yes, these pedals are designed to be used with flat-soled cycling shoes or regular shoes.

Yes, the pedals have sealed cartridge bearings that can be serviced, although it may require specialized tools. Consider taking them to a bike shop for servicing.

The weight is approximately 400 grams per pair.

Tighten the pedals into the crank arms using a pedal wrench. If the issue persists, the bearings may need servicing or replacement.

Replace the damaged or worn pins to maintain optimal grip. Replacement pins are often available from Shimano or bike shops.

Check the pedal axles and crank arm threads. Clean and lubricate if necessary. If the noise persists, the bearings may need to be serviced or replaced.