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GhostBikes.com£71.54Visit shop Cst Tm00555400 - Cm-A4ii 54H Tl Ride Ambro Tyre 90/90-21"
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The CST CM-A4II 90/90-21 motorcycle tyre is engineered for dual-sport riders who navigate both paved roads and unpaved trails. Its primary strength lies in its hybrid tread design, providing a stable contact patch for commuting while maintaining aggressive biting edges for off-road versatility; however, riders primarily focused on extreme mud or high-performance track racing may find its middle-ground design less specialized than dedicated competition tyres.
| Model Part Number | TM00555400 |
|---|---|
| Brand | CST |
The CST CM-A4II is generally designed for standard applications; however, always verify the specific rim requirements of your motorcycle, as it may require a tube depending on your wheel type.
This is a dual-sport tyre designed for street and light trail use. It is not intended for high-speed sportbike track performance.
Tread life varies significantly based on riding style, road surface, and maintenance, but the nano-silica compound is specifically formulated for improved longevity.
It provides moderate performance on packed dirt and gravel, but for deep sand, a more specialized, aggressive knobby tyre is recommended.
Some riders prefer slightly lower pressures on dirt for more compliance, but you must stay within the manufacturer's safe operating limits for the tyre and rim.
Ensure the tyre is correctly balanced. Check for uneven wear patterns or improper tyre pressure.
Check tread depth. If the wear indicators are flush with the tread, the tyre has reached its service life and should be replaced.
Ensure your motorcycle wheel is compatible with the 90/90-21 size specification before installation. It is highly recommended to have this tyre mounted by a professional using a dedicated tyre changing machine to prevent damage to the bead.
Maintenance Tips:
