It's purely subjective, but they feel pretty sturdy. Blokey here claims to have done 200 miles on one, and I've heard anecdotal stories about Peter Reid (some slevless chap apparently) finishing an Ironman on one.
@Brommers started
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It's purely subjective, but they feel pretty sturdy. Blokey here claims to have done 200 miles on one, and I've heard anecdotal stories about Peter Reid (some slevless chap apparently) finishing an Ironman on one.