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Other things you can do to increase pinch flat resistance |
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Use standard inner tubes rather than ultralight tubes. (thicker tubes are harder to pinch) |
+ 50 grams / wheel |
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Use tubes that "fit" the tire instead of small diameter tubes that stretch to fit it. (a stretched tube is easier to pinch than one that is not - think about a popping balloon, it's easier if the balloon is blown up a lot) |
+ 50 grams / wheel |
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Use a tire with deep tread blocks. (Tread blocks are a cushion for the tube, between the tube and rock - deeper tread means a thicker cushion and a smaller load on the tube) |
+ 20 to 150+ grams / wheel Cost of new tires Can be slower rolling, depends on the tread and trail conditions Good traction, better climbing, descending and cornering |
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Use a tire with anti pinch flat sidewalls. (they work pretty good, and are effective enough to raise the tolerable impact to that of the safe range for the rim in most cases. You hit the rock hard enough to pinch and you trash a rim anyway, so you will learn not to. You'll do the same with a tubeless set up unless you are rich.) |
+ 40 grams / wheel Cost of new tires Not as effective as tubeless |
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Make your own anti pinch flat tire mods (be creative - it's not hard to do) |
+ 50 grams / wheel Cost of labor and materials More effective than the above, but "too effective" in the same way that tubeless wheels are - rim damage is more likely. |
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Use more air pressure in your tires. (makes the impact required to push the tire into the rim and pinch the tube bigger) |
+ 0 grams There is a loss of traction. There is a change in the suspension characteristics of the tire It's faster on hard surfaces. |
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Use tires with larger casings (larger casings increase the distance the tire has to be compressed before it smashes the tube into the rim) |
+ 30 to 150+ grams / wheel |
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Use a suspension seat post (the impact load on the wheel is reduced if there is a smaller load on the bike from your weight as the bike hits the bump). |
+ 100 to 200 grams It only works on the rear wheel (but that's the one that matters the most) It only works when you are seated (but that's when it matters the most) Cost of the post, and they wear pretty quickly |
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Tune your front fork to be softer (ditto) |
+ 0 grams Only works on the front wheel Might not work right in other riding situations |
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Ride a full suspension bike (ditto) |
+ $$$ ??? |
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Learn better riding technique |
not always possible |
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Slow down |
not always desirable |
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Pay attention to your lines |
not always possible |
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Fine print: The opinions expressed herein by Keith Bontrager are in the nature of general observations and should not be relied upon in your specific situation. Your question, problem, bicycle or component, may be different than the one he is discussing. This Page (Web Site) is not a repair manual and is not a substitute for having your bicycle examined and repaired by a qualified bicycle mechanic. It is not intended as a tutorial or course in how to safely ride or use your bicycle. See your local library or bicycle store for publications regarding how to ride and repair your bicycle. Think of Keith like your Aunt Edna. You wouldn't really do what she tells you to do, now would you? Bontrager Cycles is a division of Trek Bicycle Corporation. Bontrager and Trek are registered Trademarks of Trek Bicycle Corporation. Copyright, Trek Bicycle Corporation. All rights reserved. |