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Shimano

Shimano TL-CN42 chain gauge

15.99 € savings
RRP 26.99 €
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From 08.06.2026 (Monday) Check availability
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Delivery method on Tuesday 09.06.2026
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At pick-up points
Delivery method on Tuesday 09.06.2026
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Extended return option up to 100 days More info
Rating (20)
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4,8/5
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more than 200 customers
have already purchased this product

Chain Wear Indicator to avoid problems due to too worn-out chains.

Features

  • High precision laser cut construction
  • Unique 3-pin structure allows accurate measurement
  • Heat treated stainless steel

Usage

  • Check the wear of chains accurately, easily and quickly
Remark: A worn chain looses the original shifting performance and wears sprockets and chainrings faster!

Scope of delivery

  • 1 x Shimano Chain Wear Indicator TL-CN42

The gear that’s just as important as components: professional tools

Bikes are subjected to a wide variety different conditions so a high-level of maintenance is required to get the best performance out of each component. Moreover, high precision, usability and a unified design are very important elements for maintenance tools. That’s why we at SHIMANO are determined to continue creating high-performance maintenance tools. We will do everything possible to develop professional tools not just for SHIMANO products, but also for the maintenance of bikes in general. SHIMANO tools have an engineered shape to perfectly fit SHIMANO components. The serration dimension of the tools is designed to match the component shape including allowance.
Product details
Material steel
product ID 58263
Product rating  (20 ratings)
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Reviews verified Verified purchases
bapa859 bapa859 • 20 March 2025 at 22:04
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SK presnejšie meranie, meria reťaz z rovnakej strany valčekov (tak ako valčeky pôsobia v skutočnosti na pastorky a prevodníky) a tým odstraňuje chybu spôsobenú rôznym priemerom valčekov reťaze. Podobne meria aj jedna mierka od Unioru aj od Parktoolu

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20 March 2025 at 22:04
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Onarb22 Onarb22 • 24 April 2025 at 12:16
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SK Meranie sedí s pozorovaným správaním reťaze (hlučnejší, nekľudný chod pri dosiahnutí 0,5% predĺženia), dobre vymyslená, presná mierka.

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24 April 2025 at 12:16
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Farbosvk Farbosvk • 6 June 2025 at 9:07
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SK Mierka od Shimana, nerezová 👍 má laserom gravírovaný návod na používanie

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6 June 2025 at 9:07
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TTBiker TTBiker • 13 March 2026 at 17:55
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Shimano chain gauge Shimano. Easy measurement, instructions on the gauge.

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13 March 2026 at 17:55
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killerotoc killerotoc • 28 February 2025 at 18:26
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SK Podľa testov najlepšia mierka na Shimano reťaze, tak uvidíme...

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28 February 2025 at 18:26
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David38 David38 • 6 April 2025 at 17:50
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SK Fajn mierka na reťaz, robí čo má, konečne nejaká poriadna.

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6 April 2025 at 17:50
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pekelnikivan75 pekelnikivan75 • 28 March 2025 at 15:40
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I have finally reached a reasonable level. Satisfaction

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28 March 2025 at 15:40
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_nikon555 _nikon555 • 12 May 2025 at 19:15
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SK Mierka, meria, už som podľa nej vymenil reťaz

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12 May 2025 at 19:15
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vejtrubal vejtrubal • 17 november 2024 at 11:27
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CS Nejlepší měrka na řetěz

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17 november 2024 at 11:27
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Dano-007 Dano-007 • 16 september 2024 at 15:34
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SK zatial mera

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16 september 2024 at 15:34
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Plyso Plyso • 30 July 2024 at 0:15
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SK kvalita

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30 July 2024 at 0:15
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robby312 robby312 • 5 september 2024 at 19:48
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I used to have a chain tester and knew when to change the chain. Now that I bought this, I'm not sure anymore because the two devices show completely different things. I don't know which one to believe yet, but I'll look into it.

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5 september 2024 at 19:48
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atrejovnik atrejovnik • 16 september 2024 at 8:39 edit •replyrobby312
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SK Mám podobnú skúsenosť, tri rôzne mierky, tri rôzne výsledky. Dokonca pri Parktool CC-4 ukazuje reťaze úplne v poriadku, aj keď podľa merania pravítkom sú už vyťahané.

___

I have a similar experience, three different scales, three different results. Even with the Parktool CC-4 it shows the chains perfectly fine, even though according to the ruler measurement they are already pulled.

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16 september 2024 at 8:39 edit
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mariankn mariankn • 28 september 2025 at 18:18
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Not bad, I'm still testing it.

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28 september 2025 at 18:18
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drhusak drhusak • 10 March 2026 at 13:09
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10 March 2026 at 13:09
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JohnySVK JohnySVK • 24 august 2025 at 11:16
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24 august 2025 at 11:16
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miroslavklas miroslavklas • 31 July 2025 at 16:19
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31 July 2025 at 16:19
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tiktik tiktik • 27 May 2025 at 7:07
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27 May 2025 at 7:07
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luptakj63 luptakj63 • 2 december 2024 at 21:13
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2 december 2024 at 21:13
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ifjszekeresjozsef ifjszekeresjozsef • 19 october 2024 at 19:17
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19 october 2024 at 19:17
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BrunoLabuda BrunoLabuda • 2 March 2025 at 19:05
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2 March 2025 at 19:05
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Product questions
peneu peneu • 7 February 2021 at 22:32
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SK Dobrý deň,

chcem sa opýtať, máte s touto mierkou skúsenosti ?

Potrebujem spoľahlivé meradlo ktorým overím opotrebenie 10 a 12 rýchlostnej reťaze shimano. Prípadne, viete odporučiť meradlo na základe skúseností ?

Ďakujem
Peter

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7 February 2021 at 22:32
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customer-support customer-support Customer support • 10 February 2021 at 18:01 •replypeneu
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SK Dobrý deň, mierku mám doma a je spoľahlivá na každú reťaz.

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10 February 2021 at 18:01
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petergvizd21 petergvizd21 • 17 december 2024 at 5:38
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SK Dobrý deň,dá sa s ňou merať reťaz GX T-type?

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17 december 2024 at 5:38
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gronkjear gronkjear Customer support • 17 december 2024 at 9:23 •replypetergvizd21
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SK Dobry den,

zial nie.

Odporucame napr.: https://www.mtbiker.sk/shop/servis/naradie/mierky-a-metre/park-tool-cc-4-2-mierka-na-retaz-p300806.html

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17 december 2024 at 9:23
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Shimano
Measurement tools Shimano
Japanese manufacturer produces road, mountain, gravel, trekking, BMX and e-bike groupsets. They also offer a whole series of components and apparel. Their range goes from wheels, footwear, eyewear to backpacks. Shimano is a traditional manufacturer known for their quality work, which is why they are the favourite choice of amateurs and professionals.
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