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Online store run by Xpert Moto
Local pickup available for pre-orders only
On-site installation at our Lewisham workshop
Online store run by Xpert Moto
Local pickup available for pre-orders only
On-site installation at our Lewisham workshop
Online store run by Xpert Moto
Local pickup available for pre-orders only
On-site installation at our Lewisham workshop
Online store run by Xpert Moto
Local pickup available for pre-orders only
On-site installation at our Lewisham workshop
Call us at: 0433 880 748
Free shipping over $200 (excludes tyres and bulky items)
Need help? book@xpertmotogear.com.au
Explore related collections:
- ➔ Tubes (682 products)
- ➔ Motorcycle tyre tubes (534 products)
The Maxxis 2.75/3.00-21 TR4 is a replacement inner tube designed to fit 21-inch rims running tyre widths between 2.75 and 3.00 inches. This rim size is standard on the front wheels of motocross, enduro, trail, and off-road motorcycles, and the tube is also compatible with relevant MTB applications.
Maxxis is a globally recognised tyre and tube manufacturer with a long track record supplying the off-road market. The TR4 straight metal valve stem is a widely accepted fitment across motocross and off-road wheel configurations.
- Fits 2.75 and 3.00-inch wide tyres on 21-inch rims
- TR4 straight metal valve stem
- Standard front-wheel fitment for motocross, enduro, and trail motorcycles
- Compatible with relevant mountain bike applications
- Inner tube
| Brand | Maxxis |
|---|---|
| Model | Tube 2.75/3.00-21 TR4 |
| Tyre Width Compatibility | 2.75 – 3.00 in |
| Rim Diameter | 21 in |
| Valve Type | TR4 (straight metal Schrader stem) |
| SKU | 35-21-275 |
| Typical Application | Front wheel — motocross, enduro, trail, off-road motorcycle; MTB |
- Before installation, lightly dust the tube with talc powder to prevent it sticking to the inside of the tyre.
- Inspect the tube for any damage or defects before fitting.
- Check that the rim tape or band is correctly seated and covers all spoke nipples before inserting the tube.
- Partially inflate the tube just enough to give it shape before placing it inside the tyre — this helps prevent pinching.
- Use plastic tyre levers only; metal levers risk puncturing the tube during fitment.
- Ensure the valve stem is seated straight in the rim hole and the retaining nut is finger-tight before fully seating the tyre bead.
- Inflate gradually to the tyre manufacturer's recommended pressure, checking that the tyre bead is evenly seated all the way around before reaching full pressure.
- Check tyre pressure before every ride; off-road riding conditions can cause gradual pressure loss.
- Avoid exceeding the maximum pressure rating printed on the tyre sidewall.
- Store spare tubes in a cool, dark location away from direct sunlight, ozone sources, and petroleum-based products, which degrade rubber.
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