AlphaBird Posted August 5, 2003 Share Posted August 5, 2003 About a month ago--I shared the story of losing 39 teeth out of 45 on the rear Al sprocket of my 929. I replaced the rear sprocket thinking that the steel front could go another 5K--8K on last 520ERV2, AFAM sprocket kit WRONG--- I replaced the chain, and just for kicks checked out the front sprocket. although its steel, it had some gnarly tooth wear, ie they were thin, and hooked--replaced everything---I was surprised that the steel had approx the same life span as the Al---granted this is all 520 lightweight shit---BUT it is definitely worth checking out the countershaft sprocket---if in doubt Quote Link to comment Share on other sites More sharing options...
SwampNut Posted August 5, 2003 Share Posted August 5, 2003 With steel and 530, I'm finding the front is pretty worn by 15k, and definitely bad by 20k. The stock rears will easily do double that. Quote Link to comment Share on other sites More sharing options...
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