Ensure precise and secure fitting of your headset withthe PRO PRHS0072 long headset spreader, designed for forks with a standard 1" 1/8" pivot. Essential for the correct installation of headsets and stems, this expander guarantees a perfect fit and a reliable clamping action, whilst protecting your fork from excessive stress.
Made from robust materials, the PRO expander offers durability and resistance to stress when tightening the stem. Its elongated design facilitates insertion into the steerer tube and allows for optimal alignment, ensuring smooth, play-free steering. Ideal for road, mountain and gravel bikes, it is an essential component for any neat and secure assembly.
Key features:
Long expander for 1" 1/8" steerer tube
Makes it easier to fit the headset and stem
Ensures precise and secure tightening
Sturdy and durable material
Compatible with road, mountain and gravel bikes
Technical specifications:
Model: PRO
Part number: PRHS0072
Type: long head tube spacer
Compatibility: 1" 1/8 fork (standard)
Use: stem fitting and headset adjustment
Colour: black
Technical details:
- Fork compatibility: aluminium and carbon - Head tube compatibility: 1 1/8" - Length: 50mm - Suitable for: road and mountain biking
Reviews are listed in descending chronological order.
Reviews were submitted without any reward.
The maximum publication period for reviews is 30 days.
The maximum retention period for reviews corresponds to the period of the merchant's contract.
Rated 5 out of 5Leborgne p.
Published Aug 01, 2026 at 06:03 pm·Order date: Jul 21, 2026· (Translated review)
Fits perfectly to my need, super thanks
Rated 5 out of 5Daniel g.
Published Nov 21, 2024 at 03:40 pm· (Translated review)
simple to assemble and more secure
Rated 5 out of 5Hervé D.
Published Jan 15, 2024 at 06:12 pm· (Translated review)
Does the job. Received very quickly?
Rated 1 out of 5Rémi G.
Published Jul 20, 2023 at 11:42 am· (Translated review)
The alloy of the internal screw is too soft! After slipping once, the Allen imprint became completely rounded and the expander got stuck in the pivot! I had to extract it with pliers...
Rated 4 out of 5Emmanuel F.
Published May 02, 2022 at 04:40 pm· (Translated review)
As expected, very good.
Rated 5 out of 5Bruno B.
Published Mar 20, 2022 at 06:02 pm· (Translated review)
With my old expander, I couldn't 'compress' the steering enough, probably a bit too light! With this model, no problem, it doesn't move. Compared to Pierre-Yves's review, you do need to be careful when slightly widening the expander before sliding it into the fork. However, I don't understand why he couldn't use it, you just need to place it a bit lower in the fork. Once the stem is tightened, I put the old expander back: a few grams saved (sturdy, but not light, of course!).
Rated 1 out of 5Pierre-Yves v.
Published Jul 01, 2021 at 01:45 am· (Translated review)
This expander is not made to fix the stem all the way up the steerer. There is at least 1 cm between the top of the expander and the cap! Moreover, when tightening the expander in the steerer, there is a 9 out of 10 chance that the expander's axis is not parallel to the axis of the steerer.
Rated 5 out of 5Jean-Paul R.
Published Jun 01, 2021 at 05:19 pm· (Translated review)
Corresponds exactly to my expectations, easy assembly and adjustment.
Rated 5 out of 5Arnaud B.
Published Jul 23, 2020 at 10:59 am· (Translated review)
Quite a long product that allows for good stem support. Two-part screwing, first piece to screw into the stem tube and second piece to hold the handlebar. This is much better than systems with a single screw to do both.
Rated 5 out of 5Claude H.
Published May 02, 2020 at 09:49 pm· (Translated review)
Problem of play at the level of the steering due to the roads and the surface, now no more loosening problems. Very good expander.
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10 reviews shown out of 10
It allows the stem to be tightened correctly into the fork steerer tube without damaging the material, ensuring a precise and secure fit.
No, it is specifically designed for standard1" 1/8" bottom brackets. For other diameters, a suitable spacer is required.
Yes, it fits directly into the pivot and makes it easier to tighten the stem.
Yes, it is made from a sturdy material capable of withstanding the stresses of tightening.
Yes, it is compatible with most road bikes, mountain bikes and gravel bikes fitted with a 1" 1/8" pivot.
No, a simple tool to tighten the stem bolt is all that’s needed once the expander has been inserted.
(Translated review)
