The Ortlieb Fork-Pack 4.1L is the ideal pannier for your bikepacking adventures and self-supported cycling trips. Ultra-lightweight (290 g including adapter), it allows you to easily increase your carrying capacity without throwing your bike off balance.

Thanks to its Quick-Lock S (QLS) system, attachment and removal take just a few seconds. It can be mounted on a fork fitted with threaded inserts or on tubes without specific mounting points (diameter 30 to 42 mm).
Its roll-top closure ensures effective protection against dust and splashes (IP64), even in harsh weather conditions.

Made in Germany from robust, abrasion-resistant PU-coated nylon, it is designed to tackle demanding terrain on gravel, mountain bikes or long-distance road rides. Compact yet high-performance, the Fork-Pack 4.1L is an essential item for optimising your bikepacking gear.

Technical specifications:

- Use: bikepacking, cycle touring, gravel, mountain biking
- Product benefits: ultra-lightweight and Quick-Lock S quick-release fastening
- Capacity: 4.1 litres
- Dimensions: 28 x 17.5 x 11 cm
- Waterproof: Yes – IP64
- Materials: PU-coated nylon (PS21R, PS33), abrasion-resistant
- Mounting: Quick-Lock S (QLS) adapter included
- Maximum load: 3 kg
- Weight: 290 g (including adapter)
- Contents: 1 Fork-Pack bag + QLS adapter plate + mounting accessories
- Colours: Brown, Black
- Product code: F9994, F9991
- Brand: Ortlieb

FAQ – Frequently Asked Questions

1. Is the Fork-Pack 4.1L compatible with all forks?

Yes, it can be mounted on forks with threaded inserts or on tubes without inserts (constant diameter from 30 to 42 mm) using the accessories provided.

2. Is it completely waterproof?

It is IP64-certified: protected against dust and splashes from all directions thanks to its roll-top closure.

3. Is the Quick-Lock S system easy to use?

Yes, it allows you to attach and detach the bag in a matter of seconds, without any complicated adjustments.

4. What is the maximum load it can carry?

The recommended maximum load is 3 kg to ensure the bike’s stability and safety.

5. What is a fork bag used for in bikepacking?

It helps distribute weight across the front of the bike, lower the centre of gravity and optimise available space for long self-supported adventures.