All orders up to and including 15.12. will be shipped this year. We expect them to arrive before Christmas. All other orders will be dispatched from 07.01. at the usual speed. We wish you happy holidays!

is42 headset upper part

€60.00

Prices incl. VAT plus shipping costs

Ready for immediate shipment, delivery time 1-3 working days within Germany

Artikel-Nr.: 26.02.605R2LS

Color:

gabelschaft:

Information
All orders up to and including 15.12. will be shipped this year. We expect them to arrive before Christmas. All other orders will be dispatched from 07.01. at the usual speed. We wish you happy holidays!
 

  • 26.02.605R2LS

kurzbeschreibung

Fully integrated headset (is) for frames with 42mm bearing seat at the top of the head tube. In our is42-headset-upper part, the combination of stainless steel angular contact ball bearings and well thought-out seals ensures durability with minimum maintenance and therefore more worry-free time in the saddle.

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Does this is42 headset fit my bike?

A large number of different bicycle frames unfortunately also results in a large number of different headsets. So we can't give a general answer to that. But we have created a special service page for you to make finding the right headset for your bike model quick and easy. And in case your bike is not featured in our headset finder, our headset specialists will work with you to find the right headset, guaranteed!

What parts are included in this is42 headset from acros?

Our is42 lower headset consists of the following parts:

  • upper bearing, dimensions in mm: 41,8x30,1x7,94
  • compression ring with cured-on seal for 1 1/8" steerer tube
  • headset cover
  • aluminium top cap
  • starnut + countersunk screw
  • assembly instructions
  • technical drawing
bearing outer diameter (ID)
42mm
headset cover outer diameter (OD)
46mm
steerer tube (SD)
28,6mm / 1 1/8"
stack height (H)
15mm
bearing height (D)
7,9mm
weight
50g

our is42 headset upper part

A headset is one of those essential and unrecognized components of your bike. And it’s also much more complex than you would think at first glance. Because our engineers spend years tinkering on our is42 headset, you can simply install it, forget about it and enjoy a worry-free time on the bike. We achieve this through our very own stainless steel angular contact bearings. Which feature two double lip seals and our optimized headset grease to protect the bearings and ensure that moisture and dirt are kept outside. That way we offer you a product that’s supposed to last, no matter what your adventure throws at you.

 

There’s one simple rule when it comes to maximising the lifespan of a headset: the better it is sealed the longer it will last. That’s why our is42 upper part comes with additional well thought-out sealing at the crown race. This prevents water and dirt from even making its way to the bearing, ensuring durability with minimal maintenance effort - so that you can maximize your good time in the saddle.

  • double-sealed angular contact bearings
  • bearing made of stainless steel
  • compression ring with cured-on seal

a closer look

technical specification

faq

frequently asked questions

stainless

Schrägkugellager aus Edelstahl

In unseren zs44 Steuersätzen verbauen wir spezielle Schrägkugellager aus Edelstahl, die die am Steuerrohr auftretenden Radial- und Axialkräften besonders gut bewältigen können und so zur Performance und langen Haltbarkeit des Steuersatzes beitragen.

smooth lube

wasserresistentes lagerfett

Wir nutzen ein, für die Anwendung in Steuersatzlagern, optimiertes Lagerfett, das besonder zäh und wasserresistent ist und maßgeblich zur langen Lebensdauer beiträgt.

sealing

Zweifache Doppellippendichtung

Die Industriekugellager in unseren Steuersätzen mit einer zweifachen Doppellippendichtung versehen. Sie verhindert, dass Wasser oder Schmutz in das Steuersatzlager eintreten kann und das Lagerfett ausgewaschen wird.

sealing performance

durchdachte dichtungstechnologie

Danke einer ganzen Reihe von Dichtungen wird Feuchtigkeit und Schmutz effektiv vom Herzstück unserer Steuersätze, den Edlestahl-Schrägkugellagern ferngehalten. So verringern wir den Pflegebedarf und verlängern die Haltbarkeit der Lager.

oben

dichtung am gabelkonus

Direkt auf unseren Gabelkonus vulkanisieren wir eine selbstverstärkende Dichtung. So wird das Lager optimal (vor Schmutz und Wasser) geschützt und nur minimale Reibung erzeugt. Wir nutzen ein extra robustes Material, das langlebig ist und nicht spröde wird.

unten

dichtung am zentrierring

Direkt auf unseren Zentrierringvulkanisieren wir eine selbstverstärkende Dichtung. So wird das Lager optimal (vor Schmutz und Wasser) geschützt und nur minimale Reibung erzeugt.

doppelt hält besser

zweifache dichtung im steuersatzdeckel

Zwei im Steuersatzdeckel verbaute Dichtungen bilden eine weitere Barriere gegen Umwelteinflüsse. Eine der Dichtungen schließt den Steuersatzdeckel gegen die Lagerschale bzw. den Rahmen ab, die Andere gegen den Gabelschaft.

internal protection

IPS dichtung

Unsere Internal Protection Sealing (IPS) schützt das Kugellager sogar vor Feuchtigkeit im Fahrradrahmen. Denn nicht selten sammelt sich Wasser unter anderem im Steuerrohr und konnte das Lager in der Vergangenheit von innen angegriffen. Gerade bei Fahrrädern mit größeren Rahmenöffnungen und integrierter Zugverlegung ist diese Dichtung entscheidend für eine maximierte Lebensdauer.

worldcup proved

auch bei den profis im einsatz

Steuersätze sind unsere Leidenschaft und werden bei unzähligen Teams im DH Worldcup und der Enduro world Series eingesetzt. Die daraus gewonnenen Erkenntnisse fließen in die ständige Weiterentwicklung ein und kommen jedem einzelnen mit acros Steuersatz zu gute.

kraftpaket

glasfaserverstärkter kunststoff

Unsere Zentrierringe fertigen wir mittlerweile aus einem hochfesten, faserverstärkten Kunststoff. Das Material ist kriechfest, sodass sich der Steuersatz nicht setzt und dadurch nicht nachjustiert werden muss. Außerdem gehört damit Knarzen der Vergangenheit an weil wir verhindern, dass Metall auf Metall trifft.

zeichnung

zeichnung

Why is acros so obsessed with sealing the headset?

"Install it and forget about it" is our mantra. Let's be honest: Nothing is more annoying than bike parts that let you down and require a lot of maintenance, because your time is precious and should ideally be spent on the bike. That's why we rely on a whole range of seals, which together with our special headset grease contribute to maximizing your good times in the saddle.

How can I take care of my headset so that it lasts longer?

We develop and manufacture your headset to make it your loyal, inconspicuous companion. Nevertheless, like many other components on a bike, it is a wearing part. But you can combat wear and tear to maximize your worry-free time in the saddle through proper installation and care. Find our assembly instructions as a PDF download on the respective product page of your particular headset.

By the way, we agree: high pressure cleaners are a great, time-saving affair. However, the strong water jet – often over 100 bar – is poisonous for your ball bearings because the high pressure can rinse out the grease. Even the best seals won’t help here if you’re not careful. Therefore avoid water blasting the area around the headset, but also around the bottom bracket and frame bearings. Apart from that, be careful around these areas with bike cleaners like Muc-Off. After all, these cleaners basically work as degreasers that will happily dissolve the grease in your bearings and, as a result, make them wear out much quicker.

PS: Did you know that when having your bike on the car roof in the rain and at high speeds, is similar to cleaning it with a high-pressure cleaner? Accordingly, it is worthwhile to watch your max speed, cover your beloved bike and regularly re-grease your headset.

Do you have more questions?

Headsets are complex parts. Not only because of the many standards and sizes it is not always easy to understand what you need. If you have any further questions, feel free to get in touch with us.

Product information "is42 headset upper part"
Fully integrated headset (is) for frames with 42mm bearing seat at the top of the head tube. In our is42-headset-upper part, the combination of stainless steel angular contact ball bearings and well thought-out seals ensures durability with minimum maintenance and therefore more worry-free time in the saddle.
part: upper part
type: is - integrated standard
frame diameter: 42mm
fork steerer: 1 1/8
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