monty_jon Posted January 21, 2011 Report Share Posted January 21, 2011 How do you tell if a rear tyre is worn out? I have a Michelin X11 on the rear, you can just make out the cuts/lines in the top of the blocks, but the blocks have a 3 to 4 mm radius on the leading edge? Quote Link to comment Share on other sites More sharing options...
zippy Posted January 21, 2011 Report Share Posted January 21, 2011 If you are riding very poorly and do not have the $$$ to replace the tire, then you have a worn out tire. It makes for a very convenient excuse. Quote Link to comment Share on other sites More sharing options...
lumpylion Posted January 21, 2011 Report Share Posted January 21, 2011 When it's slick enough to put on a street bike! Just kidding, I usually ride them until the leading edge of the knobbies are about three millimeters from the carcass of the tire, unless I'm at the nationals. If you can still see grooves on the knobbies then they are definitely still good enough to flip around and keep riding. Quote Link to comment Share on other sites More sharing options...
mikee Posted January 21, 2011 Report Share Posted January 21, 2011 When you just can't think of any other thing to spend the best part of Quote Link to comment Share on other sites More sharing options...
pete_scorpa3 Posted January 21, 2011 Report Share Posted January 21, 2011 You can't beat a new tyre, you soon loose 1 or 2% of the grip as they wear. What you have ask yourself is; would 1 or 2% extra grip make any difference to your riding? Wait until it's 10 or 20% worn and then you will really notice the difference. Quote Link to comment Share on other sites More sharing options...
monty_jon Posted January 21, 2011 Author Report Share Posted January 21, 2011 You can't beat a new tyre, you soon loose 1 or 2% of the grip as they wear. What you have ask yourself is; would 1 or 2% extra grip make any difference to your riding? Wait until it's 10 or 20% worn and then you will really notice the difference. Damn, I was hoping my poor riding was down to the tyre Quote Link to comment Share on other sites More sharing options...
lineaway Posted January 22, 2011 Report Share Posted January 22, 2011 If you ride mud or sand (loose dirt) it might make a difference, but I`ve seen top riders wear out a practice tire to nothing without any change in performance. With emphasise on rear wheel riding, pressure is more where the grip is found. If you can afford to replace the tire often it could help the mental side of the sport.Just like any national everybody shows up with fresh tires, typical of our concern of our own self worth. Quote Link to comment Share on other sites More sharing options...
copemech Posted January 22, 2011 Report Share Posted January 22, 2011 You can't beat a new tyre, you soon loose 1 or 2% of the grip as they wear. What you have ask yourself is; would 1 or 2% extra grip make any difference to your riding? Wait until it's 10 or 20% worn and then you will really notice the difference. Not road racing here Pete! Like Lineaway said, I also have witnessed a few incredible feats by some on practice tires that I may have trashed long before. However , flipping a tire or putting on new is Always good for the ego! I have sold perfectly good used sets of Mich for $50 that others disguarded! Quote Link to comment Share on other sites More sharing options...
ormplus Posted January 22, 2011 Report Share Posted January 22, 2011 if you havnt turned the tyre yet,you will get another life out it by turning it.you cant afford just to use one side. Quote Link to comment Share on other sites More sharing options...
ham2 Posted January 22, 2011 Report Share Posted January 22, 2011 err..when Baldilocks says 'stop using that poor tyre as an excuse for your poor riding' Quote Link to comment Share on other sites More sharing options...
sam_w Posted February 5, 2011 Report Share Posted February 5, 2011 I believe that you have to look at the outside knobs on a trials tyre to see when its worn rather than looking at the tread on the centre knobs. When the outside knobs are rounded then you start to lose grip in the wet especially when trying to turn. When its dry then the tyre wear makes much less difference. Quote Link to comment Share on other sites More sharing options...
yeogene Posted April 5, 2011 Report Share Posted April 5, 2011 I have used a trick from my car racing days. Use a razor blade in a knife and cut the edge of the knob making it square again. Takes a little time, but hey enjoy a beverage a movie while you are working. I live where we have snow on the ground for 5 months of the year. A tire that has been 'sipped' works better in the snow and mud then a newer tire because it cleans out better. I have experimented with cross hatching the blocks in the dry, I have had some success with tires that I would have scrapped. You have nothing to loose except time if the tire was used up anyway. Quote Link to comment Share on other sites More sharing options...
nigel dabster Posted April 5, 2011 Report Share Posted April 5, 2011 How do you tell if a rear tyre is worn out? I have a Michelin X11 on the rear, you can just make out the cuts/lines in the top of the blocks, but the blocks have a 3 to 4 mm radius on the leading edge? turn your tyres to utilise both sharp edges on midland mud. Quote Link to comment Share on other sites More sharing options...
gii Posted April 5, 2011 Report Share Posted April 5, 2011 I have used a trick from my car racing days. Use a razor blade in a knife and cut the edge of the knob making it square again. The one real control in the Trials rule book is the size shape and spacing of the blocks on the tyres. Trimming the blocks increases their spacing and may make the tyre technically illegal. Re cutting the sipes, or cutting them deeper can make a difference, 'specially on damp greasy rocks, and is allowed in the rules. Quote Link to comment Share on other sites More sharing options...
chewy Posted April 5, 2011 Report Share Posted April 5, 2011 Why are they so ruddy expensive Is there no way amongst us all to sort out remoulding tooling etc. the price for new would drop pretty dam quick then. Quote Link to comment Share on other sites More sharing options...
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