Apico Motocross Rim Lock - 1.6 inch
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Product Information
Full details
The Apico 1.6-inch Rim Lock is an essential upgrade for motocross riders seeking to prevent tyre slip during high-torque acceleration and heavy braking. Designed for universal compatibility with 1.6-inch rims, this component securely anchors the tyre bead to the rim to protect your inner tube from valve shear and friction-related punctures. While it provides excellent stability, users should note that the installation process requires a tire change, making it best suited for maintenance windows rather than quick field repairs.
All features
| Model Part Number | RIML WM1 API |
|---|---|
| Brand | Apico |
Extended Product Information
FAQs
What does 1.6-inch refer to?
This refers to the width of the motorcycle rim channel for which the lock is designed.
Is this rim lock made of metal?
No, this specific model is constructed from durable, high-strength nylon to save weight.
Do I need two rim locks per wheel?
For most 1.6-inch rims, a single rim lock is sufficient to prevent tyre slip.
Can I use this on a street motorcycle?
While it fits, rim locks are primarily designed for off-road and motocross use where low tyre pressures are common.
How tight should the nut be?
Tighten until the tyre is firmly held; avoid over-tightening which can deform the rim or damage the lock.
Troubleshooting
Difficulty seating the tyre after rim lock installation
Ensure the rim lock is fully loosened before mounting the tyre and push the lock inward toward the hub to create extra clearance.
Rim lock nut keeps coming loose
Verify the threads are clean and free of debris; consider using a light thread-locking compound if vibration causes persistent loosening.
Inner tube punctures near the rim lock area
Check that the rim lock is properly seated and that no sharp edges or debris are trapped between the lock and the tube.
Pros and Cons
Pros
- Lightweight nylon material prevents excess weight on the wheel assembly
- Prevents tyre 'creeping' during aggressive riding or low pressure use
- Reduces the risk of valve stems being ripped from inner tubes
- Universal fitment across multiple motorcycle brands and models
- Durable enough to withstand high-torque motocross environments
Cons
- Requires complete tyre removal for proper installation
- Needs careful tightening to avoid damaging the rim or tube
- Requires periodic inspection to ensure bolt tension remains consistent
Setup, Compatibility & Care
To install, first remove the tyre and inner tube from your wheel. Insert the rim lock through the designated hole in the rim bed, ensuring the contoured side faces the tyre bead. Once the tyre and tube are back in place, tighten the nut from the outside of the rim until the lock is firm against the tyre bead. Compatibility is limited to 1.6-inch wide rims, so ensure your rim specification matches before purchase. Periodic care involves inspecting the rim lock bolt during routine tyre changes to ensure no cracking or deformation of the nylon body has occurred.