FISCHER bicyklová duša Sclaverand ventil (Presta) 27,5 palcov (69,85 cm) ETRTO

FISCHER inner tube with Sclaverand (Presta) valve designed for 27.5 inch (69.85 cm) wheels and manufactured to ETRTO sizing. This tube is intended for use in compatible mountain and hybrid bicycle rims that require a Presta valve. It provides a standard rubber construction that supports airtight inflation, easy fitting, and routine repair or replacement of damaged tubes.

Advantages

The tube offers a slim Presta valve profile suitable for narrow valve holes and high-pressure settings on many rims. Its ETRTO-based sizing ensures compatibility with 27.5 inch wheel standards, simplifying selection for common mountain and trekking tyres. The construction balances weight and durability for regular riding conditions and maintenance needs.

Suitable for

• 27.5 inch (69.85 cm) mountain bikes
• Hybrid bikes with 27.5 inch wheels
• Routine tube replacement during repairs
• On-road and off-road riding where Presta valves are required

Key specifications

• Valve type: Sclaverand (Presta) valve
• Wheel diameter: 27.5 inch (69.85 cm) compatible
• Sizing standard: ETRTO-compliant dimensions
• Material: standard butyl rubber tube construction
• Intended use: mountain and hybrid bicycle rims

How to use

To install, partially deflate the tyre, remove the wheel from the bicycle if necessary, and push the tyre bead off the rim on one side. Insert the tube valve through the rim valve hole and seat the tube inside the tyre evenly, taking care that the tube is not twisted or pinched between bead and rim. Re-seat the tyre bead and inflate the tube to the tyre manufacturer’s recommended pressure. Check that the valve is straight and that the tyre sits evenly on the rim before final inflation. For repair, remove the punctured tube and replace it with this spare, following the same installation steps.

Recommendations

Use a pump compatible with Sclaverand (Presta) valves or a Presta-to-Schrader adapter if needed. Inspect tyre and rim for sharp objects before installation and avoid overinflation beyond the tyre’s rated pressure. Carry a spare tube and basic repair tools when riding in remote areas.