Or disadvantage. It's far easier to ask what a Surley steel cog is than to force a cognitive break to go look something up. You'll probably get a better answer

Or disadvantage. It's far easier to ask what a Surley steel cog is than to force a cognitive break to go look something up. You'll probably get a better answer too. And you can also avoid the inevitable 30 minute trek through Wikipedia as you get distracted and end up looking at what other types of cogs you've been missing out on. And don't even start looking at sprokets.