Balooba Posted June 15, 2020 Share Hi all I bought myself a 11/46T Sunrace cassette (new) to be fitted on a Momsen Vipa. Currently have the XT 11/40 cassette on. Bought the bike secondhand so not sure on the km's on it. Derailleur - XT 8000 - long cageChainring - Oval 32t What chain length should I purchase ,without killing the bank, that will fit my chainring/derailleur setup? KMC or Shimano for the Sunrace cassette? Thanks in advance. Link to comment Share on other sites More sharing options...
MudLark Posted June 15, 2020 Share I think you need to know the chain stay length as well to calculate required chain length. Link to comment Share on other sites More sharing options...
MudLark Posted June 15, 2020 Share You can maybe use this calculator: https://www.bergfreunde.eu/chain-length-calculator/ Edited June 15, 2020 by MudLark Link to comment Share on other sites More sharing options...
Balooba Posted June 15, 2020 Share You can maybe use this calculator: https://www.bergfreunde.eu/chain-length-calculator/ Thanks. Chain stay = 440 with 46 cassette and 32 chainring recommend 110 links for 10 speed. +2 links for 11 speed. So if their /my calculations are correct, I should get a 112 link chain? Link to comment Share on other sites More sharing options...
sirmoun10goat Posted June 15, 2020 Share Given the rate of expansion in teeth in cassettes, I need to use the calculator in reverse - 2 is my cassette teeth and 3 my chain ring teeth Link to comment Share on other sites More sharing options...
Tatt Posted June 15, 2020 Share This might help: https://si.shimano.com/pdfs/dm/DM-CN0001-05-ENG.pdf And KMC chain should be just fine. Tom Balooba 1 Link to comment Share on other sites More sharing options...
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