Does Shimano TL-CN4...
 

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Does Shimano TL-CN42 work for 12S chains?

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or is there a new version with the same code (the shimano page has a 'new' flag and it's not a new tool - it's been around for years)?  Nothing on the Shimano page says it does, and I thought I'd had mine for longer than 12s had been around.

it looks to me when I use it as if the bit that drops in when a chain is worn is resting on the 'shoulders' of the links and not the roller (which is where I thought it was meant to fall. 

https://bike.shimano.com/en-UK/products/service-and-upgrade-parts/pdp.P-TL-CN42.html

 
Posted : 29/09/2025 6:52 pm
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Make sure it’s in a wide link. 

 
Posted : 30/09/2025 8:04 pm

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