Seatpost FISCHER Kerze 25.4 mm aluminium with 35 mm suspension adjustable (model 85624)

FISCHER Kerze 25.4 mm aluminium seatpost with 35 mm suspension (model 85624) is a bicycle seatpost designed for commuter, trekking and city bikes. Constructed from aluminium, it features a 25.4 mm outer diameter and an integrated 35 mm travel suspension element to reduce road shocks. The adjustable clamp allows saddle angle and height tuning to suit different riding positions. The product is supplied as a single seatpost unit and is intended to improve comfort on varied urban and light off-road surfaces.

Advantages

The aluminium construction provides a balance of strength and light weight while corrosion resistance supports everyday use. The integrated 35 mm suspension reduces vibrations and small impacts transmitted to the rider, helping to decrease fatigue on longer rides. The adjustable clamp mechanism enables fine tuning of saddle tilt and secure height positioning, making it compatible with a range of rider preferences and bike setups.

Suitable for

• Commuter bicycles used on paved and uneven city streets
• Trekking or touring bikes for light off-road paths and mixed surfaces
• City bikes where improved comfort and vibration damping are desired
• Replacement or upgrade for bikes with a 25.4 mm seatpost diameter

When it may not be suitable

This seatpost is not suitable for frames that accept a different seatpost diameter; a precise 25.4 mm match is required for safe installation. It is also not intended for aggressive mountain biking or heavy-duty downhill use where larger-travel suspension or purpose-built dropper posts and reinforced components are recommended.

Key specifications

• Material: aluminium
• Outer diameter: 25.4 mm
• Suspension travel: 35 mm
• Adjustment: saddle angle and height adjustable via clamp
• Finish: corrosion-resistant surface treatment suitable for daily use
• Sold as: single seatpost unit

How to use

Measure the internal diameter of your seat tube to confirm compatibility with a 25.4 mm seatpost. Insert the seatpost to the required height, observing the minimum insertion mark, and tighten the seatpost clamp to the torque recommended by the bicycle or clamp manufacturer. Adjust the saddle angle using the top clamp mechanism, then secure bolts evenly to maintain saddle alignment. Periodically check fasteners and the suspension mechanism for wear, and service or replace components according to riding conditions and frequency.

What to consider before purchase

• Confirm that your bicycle frame accepts a 25.4 mm seatpost
• Verify required insertion length and minimum insertion markings on the post
• Consider rider weight and intended use to ensure the 35 mm travel suspension meets comfort needs
• Check clamp compatibility with your saddle rails and required torque specifications

Usage recommendations

For best performance, pair the seatpost with a correctly sized seat tube and regularly inspect the suspension element. Tighten bolts to manufacturer-recommended torque values and avoid exposing the post to prolonged saltwater or corrosive environments without appropriate cleaning and maintenance.