Massi ’s 63224 MTB inner tube is designed for 29-inch tyres with a width of between 2.25 and 2.50 inches. Made from butyl, it offers a good balance between pressure retention, durability and ease of use. Its 39 mm Presta valve is particularly suitable for mountain bike wheels fitted with standard-profile rims.

This inner tube is a practical solution for replacing a worn or punctured inner tube on a 29-inch mountain bike. The butyl used by Massi is particularly valued for its ability to maintain pressure over the long term and its good resistance to punctures.

Key features of the Massi 63224

• Brand: Massi
• Productcode: 63224
• Type: MTB inner tube
• Size: 29 x 2.25-2.50
• Material: Butyl
• Valve: Presta
• Valve length: 39 mm
• Suitable for MTB tyres from 2.25 to 2.50 inches
• Good pressure retention
• Good puncture resistance

Our advice: when fitting, inflate the inner tube slightly before refitting the tyre to prevent it from getting pinched between the rim and the tyre bead. Also check that the rim flange is in perfect condition.

Fitting and maintenance

Before fitting, inspect the inside of the tyre to remove any thorns, stones or debris that could cause another puncture. Then place the slightly inflated inner tube into the tyre and finish fitting, checking that it is not pinched.

After fitting, gradually inflate to the recommended pressure for the tyre and your intended use.