FISCHER Dunlop bicycle valve set, model 85490 — 6-piece (2 valve inserts, 2 locknuts)

The FISCHER Dunlop bicycle valve set, model 85490, is a six-piece repair kit designed for Dunlop (Woods) valves used on many city, trekking and hybrid bike inner tubes. The kit contains two Dunlop valve inserts, two locknuts and the additional small parts supplied with the original set, enabling straightforward replacement or repair of worn valve components without changing the entire tube. The components are compatible with standard Dunlop valve stems and intended for routine maintenance and quick field or workshop service.

Advantages

This valve set provides a compact solution for restoring Dunlop-type valves, reducing the need to replace inner tubes when only the valve mechanism is faulty. The parts are lightweight, easy to handle and suitable for both home repairs and professional servicing. Installation requires minimal tools and the included locknuts secure the valve assembly to the rim to prevent rotation or loosening during use.

Suitable for

• Repairing Dunlop (Woods) valves on city bicycles
• Maintenance of trekking and hybrid bike inner tubes
• Workshop or at-home tube servicing and quick roadside repairs

When it may not be suitable

This kit is specific to Dunlop-type valves and will not work with Presta (French) or Schrader (car) valve systems. It is intended for replacing valve inserts and associated fittings; it does not replace inner tube material damaged by punctures, tears or severe wear. For non-standard rims or specially reinforced valve stems, compatibility should be checked before purchase.

Key specifications

• Contents: two Dunlop valve inserts, two locknuts and additional supplied small parts
• Valve type: Dunlop (Woods) valve compatibility
• Intended use: inner tube valve repair and replacement
• Bike types: city, trekking and hybrid bicycles
• Installation: nut-secured valve assembly for rim mounting

How to use

Deflate the inner tube before starting work and remove the wheel if necessary to access the valve. Unscrew and extract the damaged valve insert or loosen the existing locknut, then insert the replacement Dunlop valve part into the valve stem. Tighten the supplied locknut against the rim to secure the valve in position, taking care not to overtighten. Reinflate the tube to the recommended pressure and verify there are no leaks. If the inner tube shows additional damage, replace the tube instead of fitting a new valve insert.

What to consider before purchase

• Confirm your bicycle uses Dunlop (Woods) valves, not Presta or Schrader
• Check rim and valve stem condition for compatibility with replacement inserts
• Assess whether the inner tube requires full replacement due to punctures or wear

Usage recommendations

Use basic hand tools and moderate torque when tightening the locknuts; perform a leak test after installation and carry a spare kit for longer rides on city or trekking routes.