monty_jon Posted August 25, 2014 Report Share Posted August 25, 2014 What's the correct inner tube size for a rear trials tyre? Quote Link to comment Share on other sites More sharing options...
bullylover Posted August 25, 2014 Report Share Posted August 25, 2014 Usually a 400 x 18. Quote Link to comment Share on other sites More sharing options...
reggie Posted August 25, 2014 Report Share Posted August 25, 2014 Michelin used to recommend a 17CD tube, now they use a 400 18 trial tube. Do not use a 3.50/4.00 x 18 tube use a larger 4.00/5.10 x 18 tube the chamber for the tube in a trials tire is huge if compared to a 4.00 x 18 knobby 1 Quote Link to comment Share on other sites More sharing options...
monty_jon Posted August 25, 2014 Author Report Share Posted August 25, 2014 Michelin used to recommend a 17CD tube, now they use a 400 18 trial tube. Do not use a 3.50/4.00 x 18 tube use a larger 4.00/5.10 x 18 tube the chamber for the tube in a trials tire is huge if compared to a 4.00 x 18 knobby thank you, wasn't sure which one I needed Quote Link to comment Share on other sites More sharing options...
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