Shimano PD-GR400 Flat Pedals - Red
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Product Information
Full details
The Shimano PD-GR400 Flat Pedals are designed for entry-level trail and all-mountain riders who prioritize reliable grip and platform stability without the high cost of premium aluminum models. These pedals offer an excellent balance of durability and low-profile design, making them an ideal upgrade for mountain bikers seeking more confidence on technical terrain, though riders prioritizing absolute rock-strike resistance might prefer metal-bodied alternatives.
All features
| Model Part Number | EPDGR400R |
|---|---|
| Brand | Shimano |
Extended Product Information
FAQs
Can I replace the steel pins on the GR400?
Yes, the steel pins are designed to be replaceable should they become damaged or worn after heavy use.
Are these pedals suitable for road bikes?
While they are compatible with standard cranks, they are designed for mountain biking and offer a wider platform that may not be ideal for aero-focused road cycling.
Do these pedals come with reflectors?
Shimano typically includes removable reflectors with these pedals, but they can be taken off for a cleaner aesthetic on the trail.
What is the weight limit for these pedals?
While Shimano does not specify a strict rider weight limit, they are intended for trail and all-mountain use; avoid extreme freeride or downhill jumps.
Are these clipless pedals?
No, the PD-GR400 are flat pedals and are not compatible with SPD or other clipless shoe cleats.
Troubleshooting
Pedals feel loose or have play
Check that the pedals are fully tightened into the crank arms. If the play is internal, the sealed cartridge bearings may require service or replacement.
Reduced grip on trails
Clean the pedal surface and the soles of your shoes to remove mud. Inspect the steel pins to ensure they are not worn down or missing.
Creaking sound while pedaling
Remove the pedals, clean the threads, apply fresh bicycle grease, and reinstall securely to ensure there is no friction against the crank arm.
Pros and Cons
Pros
- Excellent grip provided by steel pins
- Lightweight resin composite construction
- Low-profile design improves trail clearance
- Easy to maintain with sealed internals
- Affordable entry-level price point
Cons
- Resin body is not as impact-resistant as aluminum
- Pins are not adjustable for height
- Less suited for heavy-duty downhill racing
- Limited color availability
Setup, Compatibility & Care
Installation: To install the pedals, you will need a 15mm pedal wrench or an 8mm hex key. Ensure you apply a small amount of bicycle grease to the pedal threads before installing them into your crank arms to prevent seizing. Remember that the left pedal is reverse-threaded (turn counter-clockwise to tighten), while the right pedal follows standard threading (turn clockwise to tighten).
Compatibility: These pedals are compatible with standard mountain bike crank arms featuring 9/16" threading.
Care: Periodically check the tightness of the steel pins to ensure none have backed out during rides. Keep the pedals clean using mild soap and water; avoid using high-pressure power washers, as they can force water past the bearing seals. If you notice play in the axle over time, the sealed cartridge system is designed for low-maintenance, long-term performance.