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Description
rennrad kettenlehre Kettenverschleißlehre 0,5 & 0,75%Die Kettenverschleilehre ist das wichtigste 10 Euro Werkzeug in meiner Werkstatt. Sie misst, wie sehr sich deine Kette gelngt hat und sagt dir auf den Kilometer genau, wann Wechselzeit ist. Richtig eingesetzt spart sie dir Hunderte Euro an Kassette und Kettenblatt. Mein Werkstatt Tipp: "Wer 10 Euro in eine Verschleilehre investiert und seine Kette bei 0,75 Prozent Lngung wechselt, spart am Ende 150 Euro fr die Kassette. Das rechnet sich nach einer
Die Kettenverschleißlehre ist das wichtigste 10-Euro-Werkzeug in meiner Werkstatt. Sie misst, wie sehr sich deine Kette gelängt hat und sagt dir auf den Kilometer genau, wann Wechselzeit ist. Richtig eingesetzt spart sie dir Hunderte Euro an Kassette und Kettenblatt. Mein Werkstatt-Tipp: "Wer 10 Euro in eine Verschleißlehre investiert und seine Kette bei 0,75 Prozent Längung wechselt, spart am Ende 150 Euro für die Kassette. Das rechnet sich nach einer einzigen Kette."
Die wichtigsten Vorteile auf einen Blick
- Präzise Ketten-Verschleißmessung, erkennt die Längung auf 0,1 % genau
- Universell einsetzbar, passt auf Shimano, KMC, SunRace, Connex und Wippermann Ketten (7-12 fach)
- Zwei Mess-Seiten, 0,50 % und 0,75 % (bzw. 0,75 % und 1,0 %) für klaren Go/No-Go-Entscheid
- Robuste Bauweise, Stahl-Konstruktion, hält Werkstatt-Dauerbetrieb stand
- Kompakt und leicht, passt in jede Werkzeugschublade und Rucksack-Seitentasche
- Ohne Batterien, rein mechanisch, immer einsatzbereit
- Schnelle Messung, einfach einlegen, Ergebnis ablesen, 10 Sekunden-Check
Für welche Ketten funktioniert die Lehre?
| Kettentyp | Kompatibel |
|---|---|
| Shimano 7/8/9/10/11/12-fach MTB-Ketten (CN-HG-Serie, CN-M-Serie) | Ja |
| Shimano Rennrad 11/12-fach (CN-HG601, CN-HG701, CN-HG901) | Ja |
| KMC X-Serie, e-Serie (7-12 fach) | Ja |
| SunRace CN-Serie 9-12 fach | Ja |
| Wippermann Connex 8-12 fach | Ja |
| SRAM Eagle 12-fach Flattop-Ketten | Nein (andere Rollen-Geometrie, für SRAM-Flattop eigene Lehre nötig) |
| Nabenschaltungs-Ketten 1/8" (Single-Speed) | Teilweise (je nach Modell-Ausführung) |
Die Wechsel-Richtwerte nach Christian
Eine neue Kette hat 0 % Längung. Mit jedem Kilometer dehnt sie sich ein wenig durch Verschleiß der inneren Gelenke. Entscheidende Schwellen:
| Längung | Bedeutung | Empfehlung |
|---|---|---|
| 0 bis 0,5 % | Kette noch fit | Weiterfahren, regelmäßig messen |
| 0,5 bis 0,75 % | Kette nähert sich dem Verschleißlimit | Neue Kette bestellen, bald wechseln |
| 0,75 % | Offizielle Wechselgrenze (Shimano/KMC) | JETZT wechseln, sonst greift die Kassette mit |
| über 1,0 % | Kette stark gelängt, Kassette meist mit kaputt | Kette UND Kassette zusammen wechseln |
Wann sollte ich wie oft messen?
| Einsatzart | Mess-Intervall |
|---|---|
| E-MTB bergig | alle 300 bis 500 km |
| E-Bike Flachland | alle 500 bis 800 km |
| MTB ohne Motor | alle 800 bis 1.200 km |
| Rennrad / Gravel | alle 1.500 bis 2.000 km |
| Alltag / Pendler | 1 bis 2 Mal pro Jahr oder nach 1.000 km |
So wendest du die Lehre richtig an
- Fahrrad in den Montageständer stellen oder Hinterrad vom Boden entlasten
- Kette auf mittleres Ritzel schalten, damit die Kette normal gespannt ist
- Lehre zwischen zwei Kettengliedern einlegen, der eine Zapfen greift in eine Rolle, der andere zeigt den Verschleißgrad
- Mit dem Daumen leicht drücken, Lehre parallel zur Kette halten
- Ablesen: fällt der zweite Zapfen in die Kette (Lehre liegt flach auf), hat die Kette den Verschleiß-Wert der jeweiligen Seite erreicht
- Mindestens 3 Stellen messen, an unterschiedlichen Positionen der Kette
Tipp: Am besten misst du bei trockener, sauberer Kette. Öl und Schmutz können die Messergebnisse minimal verfälschen.
Warum sich das Investment lohnt
Beispielrechnung aus meiner Werkstatt, E-MTB mit 12-fach-Antrieb:
- Neue 12-fach Kette (KMC e12 EPT): ca. 37 €
- Neue 12-fach Kassette (Shimano SLX CS-M7100): ca. 85 €
- Neues 12-fach Kettenblatt: ca. 45 €
Wer die Kette bei 0,75 % wechselt: 4 bis 5 Ketten lang hält die Kassette (4 x 37 € = 148 €). Wer bis 1,5 % fährt: Kette plus Kassette plus meist auch Kettenblatt (37 € + 85 € + 45 € = 167 € pro Wechsel). Die Lehre kostet 10 € und amortisiert sich bei der ersten vermiedenen Kassetten-Ersatz.
Technische Details
| Eigenschaft | Wert |
|---|---|
| Typ | Kettenverschleißlehre mit 2 Mess-Seiten |
| Mess-Skala | 0,50 % und 0,75 % Längung (oder je nach Modell bis 1,0 %) |
| Material | Stahl |
| Kompatibilität | Shimano, KMC, SunRace, Connex, Wippermann (7 bis 12 fach) |
| Nicht kompatibel | SRAM Eagle Flattop-Ketten (andere Rollen-Geometrie) |
| Einsatz | Werkstatt, Hobby, Touren-Rucksack |
| Gewicht | ca. 15 g |
Passendes Zubehör
- KMC e12 EPT 12-fach, für den nächsten E-Bike-Kettenwechsel
- KMC X11EL 11-fach, leichte Rennrad-Kette
- SunRace CN11A 11-fach, günstige MTB-Kette in 3 Längen
- KMC Kettennieter, zum Kürzen beim Kettenwechsel
- KMC Kettenzange Öffner + KMC Schließzange, das komplette Wechsel-Set
- Dr. Wack F100 Kettenöl 100 ml, für die richtige Pflege zwischen den Messungen
Häufige Fragen zur Kettenverschleißlehre
Warum nicht einfach mit einem Lineal messen?
Theoretisch möglich, in der Praxis schwierig. Du müsstest die Kette straff spannen und über 12 Glieder genau messen (Soll: exakt 12 Zoll = 304,8 mm bei neuer Kette). Abweichungen von 1,5 mm entsprechen 0,5 % Längung. Das ist mit einem normalen Lineal kaum reproduzierbar zu messen. Die Verschleißlehre macht es in 10 Sekunden präzise.
Funktioniert die Lehre auch bei SRAM Eagle Flattop-Ketten?
Nein. SRAM Eagle Flattop-Ketten haben eine andere Rollen-Geometrie als Shimano/KMC-Ketten. Für SRAM brauchst du eine spezielle SRAM-kompatible Lehre (z.B. von Park Tool CC-4). Für alle Shimano, KMC, SunRace, Connex und Wippermann-Ketten funktioniert diese Standard-Lehre problemlos.
Bei welcher Längung muss die Kette raus?
Shimano und KMC nennen offiziell 0,75 % als Wechselgrenze. Ich empfehle aus Werkstatt-Erfahrung: bei E-Bikes schon bei 0,5 % wechseln (die Kassette ist teurer, also lieber früher die Kette), bei Rennrad und klassischem MTB ist 0,75 % der richtige Zeitpunkt. Über 1,0 % immer Kette UND Kassette zusammen tauschen.
Wie oft sollte ich die Kette messen?
Bei E-MTB bergig alle 300 bis 500 km, bei Flachland-E-Bike alle 500 bis 800 km, beim normalen MTB alle 800 bis 1.200 km, beim Rennrad alle 1.500 bis 2.000 km. Einfache Faustregel: im Werkstatt-Service-Intervall immer messen lassen (meist alle 500 bis 1.000 km), oder selbst alle 4 Wochen als Routine-Check.
Lieferumfang
- 1x Kettenverschleißlehre Stahl für Shimano, KMC, SunRace, Connex
- DHL-Paket aus Vohenstrauß, inkl. Sendungsverfolgung
Shipping Notes
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.3 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Good resource.
Style: 19 Pack
Tried unsuccessfully to get parts from eufy but they were out of stock Pleased to get what I needed right away here.
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Reviewed in the United States on November 27, 2025
★★★★★ 5
Essential!
Style: 19 Pack
After about 2 months of daily cleanings, the side brushes were looking a little ragged on my Eufy 12. The brushes included in this kit did come out a little bent, but as shown on the product page, when I dipped them in hot water they straightened right out.
Intrigued, I decided to try that with the original brushes. They cam out looking like new!
The only con is that the filters don't look like a perfect fit. The foam seems very minutely smaller than the original and the pleated filter seems slightly thicker.
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Reviewed in the United States on July 21, 2019
★★★★★ 5
All items fit the Eufy 30C perfectly.
Style: 19 Pack
We bought a Eufy 30C several months ago. After each time it is run, I clean the dust collection chamber, brush dust out of the filter and from the sponge-like pre-filter. After several uses, the filters simply were becoming clogged with tiny dust particles. This kit holds 10 filters and pre-filters, 8 brushes (or four sets) and one main roller brush. Every piece fits perfectly. They look and feel like original quality materials. This is a great set of replacement parts to keep your Eufy working like new.
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Reviewed in the United States on January 27, 2020
★★★★★ 5
My house has never been so clean!
Size: 05-11S
As a neat freak, this has been one of my favorite purchases recently. Hands down. No doubt. Our house has seriously never felt so clean. With four boys coming and going, plus a cat, plus my wife and I both working out of the same house, this place gets dir-r-r-r-ty! But now, I just set this little baby up and get it goes to town.
Note: the first several times that we used it, the machine's debris holding chamber was LOADED. We ran it until the battery died (and it returned to it's charger automatically), emptied it, and then ran it again as soon as it was fully charged. But each time that it ran, it was completely full! Every single time. None of us can believe how dirty we were living.
Note #2: We now take it upstairs to do a deep cleaning there. We had a little bit of a learning curve to make sure that all of the electric cords and such were off the floor. (They untangle easily, btw, if you forget). My son with the cat had a room that used to smell terrible... it smells almost normal after we ran this several times through there. And the volume of cat hair that this thing picked up is crazy amazing. Hair that we didn't even see. I didn't know cat hair smalled badly, but it must've. Room smells pretty decent now (not perfect - there still is a smally boy living in there)!
Note #3: We keep a pretty clean house. That is what is amazing about this thing. It makes it really clean.
Note #4: After the first several runs, make sure that you clean the roller brush. It will make a difference. The tool that comes with the unit that looks like a comb does a great job. If you get hair or thread or similar wrapped around it, use the handy dandy letter opener-style cutter to easily and safely clean it out. The blue parts on bottom around roller remove easily for deep cleaning. Do it! Easy and worth it for better future results.
Note #5: Does all types of floors really well. We have ceramic, vinyl, short carpet, marble, deep carpet - all on the first floor of our house --- NO PROBLEM for Eufy! It moves with ease between them all.
Note #6: Problem areas? We have a screened in porch that has a door that allows tiny little leaves in under the door. I'll just set the Eufy out there and forget about it. When I see it again, the machine has run out of juice and the floor is perfectly clean. Or my basement office. Set it in there at the end of the day, close the door and forget about it. In the morning, the floors are clean and the machine is sleeping where it ran out of power. I take it back upstairs, empty the cannister, and put it back on the charger.
Last note: It gets in tight spaces. It cleans edges beautifully. It spends more time on a room than we ever would, so I guess that is why it cleans so well. It gets under most of our furniture. Around most of our chairs. And oh - I almost forgot - this vacuum is SO-o-o-o quiet. With our upright, you can't hear yourself think. With this thing, I can be do my work uninterrupted.
Disclaimer - I have wasted a lot of time just watching machine in amazement and awe! Thankfully I can now walk away from it - although the 7 sessions with a therapist to get me to break the habit were a pain. ;)
I highly recommend the machine - if you couldn't already tell! I came back on to Amazon to buy a unit for my in-laws and saw the opportunity to avoid my job for a little bit to write this review! Funny, but I am glad that I did. This little fella is totally worth it. If you are thinking about which brand to buy, you can't go wrong with Eufy.
Kudos to the manufacturer and development team!
Note to manufacturer: Can you please develop a machine to automatically climb and clean stairs (cook, do toilets, do laundry)... ?
People, you are going to love this vacuum!
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Reviewed in the United States on July 13, 2021
★★★★★ 5
Great robovac! We named ours “Robby the Robovac.”
Size: 06-15C Max
I hesitated for years to pull the trigger on getting a robot vacuum, and I shouldn’t have. If you are on the fence, get one. This thing has been worth the $250 in the first month, alone. (I compare it to a maid service fee.) It automates the simplest but most essential task of cleaning, because most dust and dirt ends up on the floor. It also forced me to finally tidy up all the wires and miscellaneous junk I had laying around on the floor, and thereby also eliminate areas where dust and dirt would accumulate, both of which were unexpected side benefits. It also frees up time to then wet mop and clean other places more easily, and tacitly helps me WANT to follow through with those final stages of cleaning that are easier because it takes care of the most time-intensive, initial stage of cleaning.
It has been a life changer for us. The first week made the house smell a bit dusty because it kicked up all the latent dust from the corners, under furniture, and in the rugs. But once it got through that stage, the whole house looks and “feels” so much cleaner and smells nicer. Subtle but significant difference.
I live in a one-story bungalow with mostly hardwoood or laminate floors, with a low-nap Berber floor covering in my master bedroom. I have a mid-size wire-hair dog who sheds normally, and it is perfect for picking up dog hair. I also have a nine year old son who adds to the dust and dirt. The suction is great on all of our surfaces. It works better than my stand-up “cyclonic” Hoover. Having three suction settings allows you to adjust the noise level depending on how clean you need the suction to be. The side brushes seem trite but definitely do work to help collect and”funnel” dirt into the collection bin. They also hit under furniture legs and walls edges to help collect the dirt that hides there.
The collection bin does need to be emptied frequently (every few uses, especially when you first use it), but I look at that as letting me know what would have been on my floor if I didn’t have the unit. It is amazing how much it cleans off the floor even after the first wave of cleaning.
The different cleaning modes are also well thought out: edge cleaning, spiral-spot cleaning, and random walk cleaning. I use the edge cleaning mode the most because dust and dirt tend to congregate along the edges.
Three downsides that are probably fixed in higher end models. First, getting the app to work was unnecessarily frustrating and difficult because I forgot my exact WiFi password. The problem is that the interface requires you to go through about a five minute process for each “guess,” which made syncing to the app much more frustrating and unnecessarily slower than it should have been. Then with each failed attempt, I also had to also manually reset the entire unit by pressing the power button for 20 seconds. They should program it to test the password quickly so the entire syncing process does not take five minutes until you find out you typed the password incorrectly. (Especially because WiFi passwords are case-sensitive, so it is easy to mistype it). Once I typed the correct password and synced it, the problem was over, but it was frustrating and time consuming.
Second, controlling the unit manually through the app is difficult because of the lag time in the signal through WiFi. So any time I manually steer the until, I use the remote and not the app. Not a big deal, but something to note.
It is also too loud to schedule vacuuming at night. It woke us up the first three times it ran a scheduled overnight clean, partly because we keep our bedroom doors open at night. We are still on COVID lockdown, so I can’t just schedule it to run during the day while we are at work. So I just run it in the background during the day or when I leave to go to the store or take the dog for a walk.
Nonetheless, none of those are dealbreakers, mostly just minor inconveniences that are acceptable at this price point. It still earns its five star rating for fulfilling its primary purpose and then some.
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Reviewed in the United States on June 29, 2020