CushCore E-MTB Tyre Insert - 27.5in
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Product Information
Full details
The CushCore E-MTB 27.5in Tyre Insert is designed for heavy-duty electric mountain bike riders looking to increase durability and suspension performance on technical terrain. By acting as a dynamic damper within the tyre, this system provides enhanced sidewall stability and impact protection, allowing for more aggressive riding without the risk of rim damage or tyre squirm. While it significantly improves ride quality and impact absorption, users should note that the installation process is more demanding than standard tubeless setups and requires attention to tyre-rim tolerances.
All features
| Model Part Number | CC-27505-V |
|---|---|
| Brand | Cushcore |
Extended Product Information
FAQs
Can I use any tubeless sealant with CushCore?
Yes, but it is recommended to use an ammonia-free sealant to ensure the longevity of the foam insert material.
Does this insert make the bike feel heavier?
The insert adds 281g per wheel. While this is an increase in rotational weight, the performance benefits in handling and protection often outweigh this for E-MTB riders.
Can I ride home with a flat tyre if I have CushCore installed?
Yes, the insert provides a small amount of 'run-flat' capability, allowing you to ride slowly to a safe area without destroying your rim.
How do I know if the insert is seated correctly?
After installation, bounce the wheel on the floor. If you hear a rhythmic thumping or if the tyre wobbles excessively, the insert may be pinched under the bead.
Is this compatible with tubeless-ready rims?
Yes, it is specifically designed for tubeless-ready mountain bike rims within the 22mm to 35mm internal width range.
Troubleshooting
Difficult to seat the tyre bead
Ensure the tyre bead is positioned deep in the center channel of the rim all the way around before trying to pop it onto the bead shelf.
Sealant leaking from the valve
Remove the valve core, clean it thoroughly with water or a thin pick, and ensure it is tightened correctly back into the valve stem.
Pros and Cons
Pros
- Significantly reduces rim damage from big impacts
- Eliminates tyre squirm at lower pressures
- Improved traction and cornering confidence
- Provides a smoother, more composed ride
- Compatible with a wide range of rim widths
Cons
- Installation can be physically difficult
- Adds unsprung weight to the wheelset
- Requires more sealant than a standard setup
- May be challenging to remove on the trail if a repair is needed
Setup, Compatibility & Care
The CushCore E-MTB 27.5in insert is compatible with rims having an internal width of 22mm to 35mm and tyres ranging from 2.1 to 2.6 inches in width.
- Preparation: Ensure the rim is clean and the tubeless tape is in good condition.
- Installation: Use a high-quality tyre lever and plenty of leverage. Because of the tight fit, consider using a mounting tool or soapy water to help the bead slide over the rim flange.
- Sealant: Use the recommended volume of sealant, noting that the insert itself may absorb a small amount. Inject sealant directly through the valve core after the bead is seated if possible.
- Maintenance: Periodically check the insert for signs of wear or damage after major impacts, and ensure the valve core is clear of dried sealant to allow for proper pressure adjustments.