The P-I is running an AP story this morning about the new carbon fiber composite belt that some bike manufacturers (Trek, in the article) are switching to. The article makes all sorts of claims for belt superiority. We imagine they are quieter, and of course there's no chain grease involved, but we drew up short at this: "And one belt will typically last three years--the life span of three chains." Is that for real? Our chain is...let's see...carry the two...about 35 years old. It still seems to do the trick. What's the deal with these one-year chains? more ›