Bisikletci Posted October 16, 2019 Share Posted October 16, 2019 Hello, I have a 28 inch tour bike which I am riding for a long time and I am uprgrading it. I've just purchased a 1x12 deore Xt 8100 set with a 11-52 casette. Now I have to order a crankset but I have a problem. Because I will ride it both on and off road (no hard climbes) I want to order a 42 T crank. Is it possible and does it effect my shifting performance? because of changing angle or all I need is a longer chain and that is all? All custom crank sellers tell that their cranks are competible with all types 10-11-12 is there a thickness value I have to look for at a chainring? Thank you upfront for your kind answers! :) Quote Link to comment Share on other sites More sharing options...
Administrators SickBiker Posted October 30, 2019 Administrators Share Posted October 30, 2019 Here's what I think you ask about: the size of your front chainring does not affect the "angle", or the chain line, the chain thickness stays the same - it is the distance between the rear sprockets, that's smaller on the 12 speed cassette, the new chain is usually to long for a "standard" drivetrain, but I think, that it will be to short for the 42T by 51T setup. My question - why wouldn't you use something like 11-46T cassette, with a smaller chainring at the front? 1 Quote Link to comment Share on other sites More sharing options...
Onur Posted October 2, 2020 Share Posted October 2, 2020 Hello again, Sorry to write you after a long time I thought you didn't answer. I lost my original account and now I took a new one. I want to complete the story. 8100 set didn't went well we had many problems and even shimano service center couldn't find out what is wrong. So I bought myself 8000XT full shimano set with 46 T set up (Which is also compatible with my 8000 hub). Shimano service told me a lot of things about compatibility but now I think again and maybe the only problem was chain length (It was extremely tight). I will test and write if I have the chance to try it on another frame. Anyway thanks for the help. Quote Link to comment Share on other sites More sharing options...
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